Offices of DentistsExplore a dental market

Dentist directory · San Diego, CA

Harold Block, DDS

  • General practice
  • 19+ years in the federal registry
  • Independent practice
  • NPI-verified

General-practice dentist practicing in San Diego, California — one of 1,436 active dentists in the city’s federal registry roster, 101 of them sharing the 92117 ZIP code. Every fact below is from the public record, with its source shown.

Registry profile

Practice address

5189 Clairemont Mesa Blvd, San Diego, CA 92117

Phone

(858) 277-4764

Fax

(858) 505-0647

Specialty (primary taxonomy)

General Practice

Taxonomy code 122300000X

License state

CA

In the federal registry since

2006

Registry record last updated

2007-07-08

NPI number

1003907940

View the authoritative record at NPPES

CMS National Plan & Provider Enumeration System (NPPES) NPI Registry, live registry (individual providers, county). Retrieved 2026-07-23. Providers self-report NPPES records, so an address or phone number can lag a practice move — confirm details directly with the office. An NPI is a federal enumeration, not a license status, quality rating, or endorsement.

The market around this practice

San Diego County runs 59.2 dentist offices per 100,000 residents — about 2% more than California overall (58.1). That is the competitive backdrop this practice operates in. Full county detail is on the San Diego County market page.

Where this practice sits in San Diego

The 120 practices nearest this one, of 1,310 geocoded citywide. Hover a dot for the name; click through to the profile.

  • General practice (101)
  • Specialist (19)
  • This practice
Ali Aldabe, DMD — General Practice, 5189 Clairemont Mesa BlvdStephen Baral, DMD — General Practice, 5189 Clairemont Mesa BlvdEmmanuel Aguilar, DMD — General Practice, 5382 Clairemont Mesa BlvdTouran Davoudi, DDS — General Practice, 5450 Clairemont Mesa BlvdMolly Liu, DDS — General Practice, 5527 Clairemont Mesa BlvdSamson Yang, DMD — General Practice, 5527 Clairemont Mesa BlvdGeorge Stratigopoulos, DDS — General Practice, 4808 Clairemont Mesa BlvdXusheng Mu, DDS — General Practice, 4716 Clairemont Mesa BlvdLily Marucci, DMD — General Practice, 4664 Clairemont Mesa BlvdDivya Patel, DMD — General Practice, 4664 Clairemont Mesa BlvdNajwa Barakat, DDS — General Practice, 7061 Clairemont Mesa Blvd Ste 220Daniel Stragier, DDS — General Practice, 4340 Genesee AveRaymond Carpenter, DDS — Oral and Maxillofacial Surgery, 4320 Genesee Ave Ste 207Paul Davis, DDS — General Practice, 4320 Genesee AveShivali Garg, DMD, MSD — Periodontics, 4320 Genesee Ave Ste 203William Halligan, DDS — General Practice, 4320 Genesee Ave Ste 207John Holman, DDS — Orthodontics and Dentofacial Orthopedics, 4320 Genesee AveLinda Lukacs, DDS — General Practice, 4320 Genesee AvenueRussell Mccalley, DDS — General Practice, 4320 Genesee AveAnton Misleh, DDS — General Practice, 4320 Genesee AveCourtney Misleh, DMD — General Practice, 4320 Genesee Ave Ste 204Jann Ramos, DDS — General Practice, 4320 Genesee Ave Ste 101Niknam Refahi, DDS — General Practice, 4320 Genesee Ave Ste 106James Sinks, DDS — Periodontics, 4320 Genesee AveJieyi Zhuang, DDS — General Practice, 4320 Genesee Ave Ste 103Alexis Hurst, DDS — General Practice, 4690 Genesee AveBridget Hurst, DDS — General Practice, 4690 Genesee AveSteven Hurst, DDS — General Practice, 4690 Genesee AveJin Yang, DDS — General Practice, 4310 Genesee Ave #108-BJoseph Lai, DDS — General Practice, 4282 Genesee AveLauren Ho, DDS — General Practice, 5675 Balboa AveMynhan Le, DMD — General Practice, 5675 Balboa AveRonny Le, DDS — General Practice, 5675 Balboa AveMatthew Parilla, DMD — General Practice, 5675 Balboa AveRishaad Taraporewalla, DMD — General Practice, 5675 Balboa AveNoozhan Karimi, DDS — Prosthodontics, 5927 Balboa AveSerena Kurt — General Practice, 4453 Clairemont Mesa BlvdRobert Levine, DMD — General Practice, 4453 Clairemont Mesa BlvdDavid Hellerud, DDS — General Practice, 4444 Manitou WayMohamad Tarabishi, DDS — General Practice, 6465 Balboa AveRobert Chin, DDS — General Practice, 6545 Balboa AvePaul Kosciuk, DDS — General Practice, 6565 Balboa AveAlbert Leung, DDS — General Practice, 6565 Balboa AveElenaz Sarshar, DDS — Endodontics, 6750 Beadnell Way Unit 49Richard Katnik, DDS — General Practice, 7319 Clairemont Mesa BlvdWilliam Olson, DDS — General Practice, 7319 Clairemont Mesa Blvd.Mike Adams — General Practice, 5222 Balboa AveHussein Dhayni, DDS — General Practice, 5222 Balboa Ave Ste 72Kenneth Patterson, DDS — General Practice, 5222 Balboa Ave.Yu-Song Yen, DDS — General Practice, 5222 Balboa Ave Ste 71Genevieve Abi-Nahed, DMD — Orthodontics and Dentofacial Orthopedics, 5210 Balboa Ave Ste A2Alexa Kirkland, DDS — General Practice, 5210 Balboa AveSusan Chang, DDS — General Practice, 7380 Clairemont Mesa BlvdYunghui Chang — General Practice, 7380 Clairemont Mesa Blvd Ste 100Erica Chien — General Practice, 7380 Clairemont Mesa BlvdRaj Ukani, DDS — General Practice, 7380 Clairemont Mesa Blvd Ste 100Florina Ivanescu, DDS — General Practice, 4134 Mount Alifan Pl Unit HJing Lee, DDS — General Practice, 4341 Clairemont Mesa BlvdAn Nguyen, DDS — General Practice, 7450 Clairemont Mesa BlvdLouie Al-Faraje, DDS — General Practice, 4710 Ruffner StGerald Massimei, DDS — General Practice, 5750 Erlanger StRobert Jacob, DDS — Orthodontics and Dentofacial Orthopedics, 4617 Ruffner St Ste 200Hemamalini Srinivasan, DDS — General Practice, 4921a Clairemont DrRobert Goehl, DDS — General Practice, 7675 Dagget StRichard Lindsay, DMD — General Practice, 7675 Dagget StAmit Batheja, DDS — Endodontics, 8018 Clairemont Mesa BlvdClaudine Tsui, DDS — General Practice, 8018 Clairemont Mesa BlvdDominic Gallo — General Practice, 7808 Clairemont Mesa BlvdKim Thanh Hoang — General Practice, 7808 Clairemont Mesa Blvd Ste 101Mingi Kim, DDS — General Practice, 7750 Dagget St Ste 104Claudette Chaikin, DDS — General Practice, 4698 Convoy StJustin Seng, DENTIST — General Practice, 4698 ConvoyGeorge Damerji — General Practice, 4620 Convoy St Ste FChung-Ling Hsieh, DDS — General Practice, 4620 Convoy StHeeseon Ko, DDS — General Practice, 7825 Engineer RdSuryadeep Mankatala, DDS — General Practice, 4731 Clairemont Dr Ste 101Maria Dulce Vargas-Loo, DMD — General Practice, 7878 Clairemont Mesa BlvdGordon Rick, DDS, MS — Oral and Maxillofacial Pathology, 5190 Governor DrLee Slater, DDS, MS — Oral and Maxillofacial Pathology, 5190 Governor DrWesam Altamimi, DDS — General Practice, 3802 Clairemont Mesa BlvdMelissa Ruff, DMD — Endodontics, 3802 Clairemont Mesa BlvdDenise Handler, DDS — General Practice, 7914 Ronson RdGerald Handler — General Practice, 7914 Ronson RdHana Rosen, DMD — General Practice, 7914 Ronson RdLuc Huynh, DDS — General Practice, 4488 Convoy StMai-Phuong Huynh, DDS — Dentist Anesthesiologist Speciality, 4488 Convoy StNajeeb Frangool, DMD — General Practice, 4428 Convoy St Ste 230Gee Kim, DDS, MAGD — General Practice, 4428 Convoy St Ste 230John Kim, DMD — General Practice, 4428 Convoy St Ste 230Ali Fakhimi, DMD — General Practice, 3735 Clairemont Mesa BlvdIndra Sharma, DDS — General Practice, 3735 Clairemont Mesa BlvdJackline Pham, DDS — General Practice, 4344 Convoy StreetChaur-Chou Cheng, DMD — General Practice, 4194 Convoy StMei-Wen Kuo, DDS — General Practice, 4194 Convoy StJoanne Copps, DDS — General Practice, 5181 Argonne CtGeorge Copoulos, DDS — General Practice, 4241 Balboa AveLarry Hovey — General Practice, 3957 Governor DrHaley Deloach, DDS — General Practice, 3939 Governor Dr Ste AThomas Acierno, DDS — Endodontics, 3867 Clairemont DrAnthony Tai Pham, DDS — General Practice, 4240 Kearny Mesa Rd.Geoffrey Kopecky, DDS — Orthodontics and Dentofacial Orthopedics, 3820 Convoy StLisa Danh — General Practice, 7440 Beagle StLevi Powell, DDS — General Practice, 7440 Beagle StTina Fariba, DDS — General Practice, 3805 Clairemont DrRussell Haag, DDS — General Practice, 3805 Clairemont DrMichael Spilotro, DDS — Periodontics, 3805 Clairemont DrJuan Bosque, DDS — Endodontics, 3760 Convoy StEldridge Smith, PERIODONTIST DDS — Periodontics, 3804 Clairemont DriveRonald Layton, DDS — General Practice, 3750 Convoy St Ste 307Michael Mahaffey, DDS — General Practice, 3750 Convoy StNellie Tazbaz, DDS — General Practice, 3796 Clairemont DrWilliam Briggs, DDS — General Practice, 3782 Clairemont DrRaymond Moga, DDS — General Practice, 3774 Clairemont DrKatherine Tan, DMD — General Practice, 3774 Clairemont DrLawrence Lotzof, DDS — Orthodontics and Dentofacial Orthopedics, 3772 Clairemont DrKazuhiro Kato, DDS — General Practice, 3707 Convoy St.James Berry — General Practice, 4540 Kearny Villa RdIsrael Ismaj, DDS — General Practice, 4540 Kearny Villa Rd Ste 116Barbara Young, DDS — General Practice, 3764 Clairemont DriveHarold Block, DDS — 5189 Clairemont Mesa Blvd
Positions from the U.S. Census Bureau geocoder (public domain) applied to NPPES practice addresses; grid lines are 0.02° of latitude/longitude. Not a routing map — a market map. Showing the nearest 120 practices; the full city is on the San Diego roster page.

How long San Diego’s dentists have been in the registry

1,436 dentists by years since NPI enumeration — a lower bound on time in practice.

03697370–4 years: 176 dentists0–45–9 years: 202 dentists5–910–14 years: 191 dentists10–1415–19 years: 737 dentists15–19this practice’s bin20–24 years: 130 dentists20–2425+ years: 0 dentists25+
Source: NPI enumeration dates, CMS NPPES. Dentists licensed before the NPI system launched in 2006 all enumerated around then, so the top bins understate long careers.

Dentist offices per 100,000 residents

The competitive backdrop: establishment density, county vs state vs nation.

San Diego County: 59.2 offices per 100k residentsSan Diego County59.2California: 58.1 offices per 100k residentsCalifornia58.1United States: 40.6 offices per 100k residentsUnited States40.6
Derived from U.S. Census County Business Patterns (NAICS 621210 establishments) and ACS population. Establishments are business locations, not individual dentists.

San Diego County — the numbers

Dentist offices (NAICS 621210 establishments)

1,943

U.S. Census Bureau, County Business Patterns, 2022 (establishments, county). Retrieved 2026-07-22. Source

Population

3,282,782

U.S. Census Bureau, American Community Survey, 2023 (population, county). Retrieved 2026-07-22. Source

Offices per 100,000 residents

59.2

Derived from U.S. Census Bureau, County Business Patterns, 2022 (establishments, county). Retrieved 2026-07-22. and ACS population. Establishments, not dentists.

General dentist mean annual wage

Not available in the cached dataset for this geography.

Paid employment (dentist offices)

12,576

U.S. Census Bureau, County Business Patterns, 2022 (employees, county). Retrieved 2026-07-22. Source

Every figure counts establishments (business locations) or wage-and-salary workers — not individual dentists, and not licenses. Suppressed values reflect real source disclosure limits, never zero. See our methodology.

Is this your practice?

This profile was built from your public federal registry record — it exists whether or not you ever talk to us. If something is out of date, the fastest fix is updating your record at NPPES (we re-sync from the registry); or write to us below and we’ll flag it.

If you want to see what we see: run your own numbers through the free Market Assessment Brief — the same census layer behind this page, turned into a screening brief with its math shown — or pressure-test a lease with the Dental Office Lease Check. No login, nothing invented, every figure cited.

NEXT STEP

Explore a dental market

Share only the information needed to continue. Do not submit medical history, diagnoses, images, insurance details, or other sensitive health information here.

About this page

This is a data profile assembled from public sources — the CMS NPPES NPI Registry and U.S. Census market data — not the practice’s own website, and not a ranking. Inclusion is automatic for every active registered dentist in a covered city; no practice can pay to appear, disappear, or rank. Patients should verify hours, availability, and insurance participation directly with the office. See our methodology.

Related in this network

NAICS 621210Offices of Dentists industry reference.The Dental BoardBenchmarks for dentistry, with the math shown.

Related properties may share common ownership. A cross-property link is not an endorsement — see our ownership disclosures.