Andrew Gregory Peterson, DMD, MS
Periodontics · Claremont, CA
Andrew Gregory Peterson, DMD, MS is a periodontics with a practice address in Claremont, California, and NPI 1619318755, issued on Jul 16, 2013. Check the license (California 103423, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Andrew Gregory Peterson
- Credential
- DMD, MS
- Primary taxonomy
- Periodontics 1223P0300X
- License numbers
- 103423 CA
D9905 OR
Self-reported in NPPES; status is on the state search - Practice location
- 460 Champlain Dr, Claremont, CA 91711
- Phone
- (406) 861-8844
- Enumerated
- Jul 16, 2013
- Record last updated
- Dec 20, 2020 (not updated in 6 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest periodontics records → All 929 in California → Look up another NPI →
Verify Andrew Gregory Peterson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 103423Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
40% fewer Medicare Part D claims than the average periodontics in 2024
165 Medicare Part D claims for 76 beneficiaries, against an average of 277 among the 4,191 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims. 46 claims were for opioids.
Most prescribed
- Amoxicillin-Clavulanate Potass51 claims
- Tramadol Hcl36 claims
- Amoxicillin26 claims
- Azithromycin14 claims
- Chlorhexidine Gluconate13 claims
- Ibuprofen12 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $21.46
1 payment: food and beverage; the largest payer was Henry Schein, Inc. The 2,966 providers of this specialty with any payment received $1,338.41 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Andrew Gregory Peterson among 929 periodontics records in California
Andrew Gregory Peterson, DMD, MS is one of 929 periodontics records with a practice address in California. 69% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2013, is newer than 78% of them.
- NPI issued2013 · 78% of these records are older, 18% newer
- In a Medicare fileYes · 69% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- Record last updated2020 · 78% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1223P0300X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Periodontics providers in California
There are 929 periodontics records in California.
All 929 in California → Every provider in Claremont → Periodontics nationwide →
The 8 periodontics records with the nearest ZIP codes
- Ho-Yin Leung, D.D.S., M.S.Chino, CA 917101053715698
- Armen Mardirossian, DDS MSChino, CA 917101205999091
- Christopher Pham, DDS, MSChino, CA 917101700491891
- Andrew Hwang, D.D.S.Baldwin Park, CA 917061992050462
- Yen Le, DDS, MSBaldwin Park, CA 917061972127538
- Mario Flores, DDSAlta Loma, CA 917011548486277
- Farhad Amini, DDSCovina, CA 917231417244039
- Sanford King, D.D.S.Covina, CA 917231023037942
Common questions
What is Andrew Gregory Peterson, DMD, MS's NPI number?
Andrew Gregory Peterson, DMD, MS's National Provider Identifier (NPI) is 1619318755, issued on Jul 16, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Andrew Gregory Peterson, DMD, MS located?
The NPPES record lists a practice address at 460 Champlain Dr, Claremont, CA, 91711. Phone: (406) 861-8844. Providers update this record themselves, so call before visiting.
How can I verify Andrew Gregory Peterson, DMD, MS's license?
NPPES lists California license number 103423, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Andrew Gregory Peterson, DMD, MS prescribe under Medicare Part D?
In 2024, Andrew Gregory Peterson, DMD, MS had 165 Medicare Part D claims for 76 beneficiaries; the average among periodontics prescribers was 277. Part D covers Medicare prescriptions 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. Medicare files from data.cms.gov. 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.