Gregory Harrison Singer, DDS
General Practice Dentistry · Modesto, CA
Gregory Harrison Singer, DDS is a general practice dentistry with a practice address in Modesto, California, and NPI 1710595079, issued on Jul 22, 2020. Check the license (California DDS104989, as entered in NPPES) with the California board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Gregory Harrison Singer
- Credential
- DDS
- Primary taxonomy
- General Practice Dentistry 1223G0001X
- License number
- DDS104989 CA
Self-reported in NPPES; status is on the state search - Practice location
- 400 E Orangeburg Ave Ste 4, Modesto, CA 95350
- Phone
- (209) 524-4763
- Enumerated
- Jul 22, 2020
- Record last updated
- Jul 22, 2020 (not updated in 6 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest general practice dentistry records → All 17,852 in California → Look up another NPI →
Also registered at 400 E Orangeburg Ave Ste 4
A shared address usually means a shared clinic or building; it does not show who employs whom.
- David Paxman, D.M.D.Dentist1760899884
Verify Gregory Harrison Singer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license DDS104989Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Gregory Harrison Singer among 17,852 general practice dentistry records in California
Gregory Harrison Singer, DDS is one of 17,852 general practice dentistry records with a practice address in California. 57% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2020, is newer than 87% of them.
- NPI issued2020 · 87% of these records are older, 11% newer
- In a Medicare fileNo · 57% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- Record last updated2020 · 79% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1223G0001X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
128 general practice dentistry records list a practice address in Modesto
They are 128 of the 9,262 NPPES records with a practice address in Modesto, and 17,852 general practice dentistry records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 17,852 in California → Every provider in Modesto → General Practice Dentistry nationwide →
The 8 general practice dentistry records with the nearest ZIP codes
- Lawrence Bartlett, D.D.S.Modesto, CA 953501104984384
- Samuel Bleakley, D.D.S.Modesto, CA 953501023034204
- Michael Boyer, DDSModesto, CA 953501396742458
- Galen Filbrun, D.D.SModesto, CA 953501346358272
- Mary Fitzpatrick, DDSModesto, CA 953501811065527
- Garry FoundModesto, CA 953501518070374
- Parampal Gill, D.D.SModesto, CA 953501831266246
- John Jeppson, D.D.S.Modesto, CA 953501013907575
Common questions
What is Gregory Harrison Singer, DDS's NPI number?
Gregory Harrison Singer, DDS's National Provider Identifier (NPI) is 1710595079, issued on Jul 22, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Gregory Harrison Singer, DDS located?
The NPPES record lists a practice address at 400 E Orangeburg Ave Ste 4, Modesto, CA, 95350. Phone: (209) 524-4763. Providers update this record themselves, so call before visiting.
How can I verify Gregory Harrison Singer, DDS's license?
NPPES lists California license number DDS104989, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.