Kelvin Ma, D.O.
Family Medicine Physician · Colton, CA
Kelvin Ma, D.O. is a family medicine physician with a practice address in Colton, California, and NPI 1174933279, issued on Apr 29, 2014. Check the license (California 20A15631, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Kelvin Ma
- Credential
- D.O.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 20A15631 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1300 E Cooley Dr, Colton, CA 92324
- Phone
- (909) 970-4100
- Enumerated
- Apr 29, 2014
- Record last updated
- Mar 23, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (909) 370-4179
- Medicare enrollment
- Enrolled (PECOS I20171128003045); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Also registered at 1300 E Cooley Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Sarah Contreras, FNPFamily Nurse Practitioner1871895508
- Calvin Duong, M.D.Internal Medicine Physician1184646119
- Alkevin GacuyaFamily Nurse Practitioner1972204592
- Glen Gaerte, O.D.Optometrist1003855172
- Sarah Gomez, MDFamily Medicine Physician1760904924
Verify Kelvin Ma in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A15631Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.3 times the Medicare Part D claims of the average family medicine physician in 2024
11,561 Medicare Part D claims for 728 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims. 246 claims were for opioids.
Most prescribed
- Atorvastatin Calcium733 claims
- Levothyroxine Sodium340 claims
- Losartan Potassium335 claims
- Amlodipine Besylate334 claims
- Lisinopril319 claims
- Omeprazole272 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: $589.11
5 payments; by number, the most common kind was food and beverage; the largest payer was Phathom Pharmaceuticals, Inc. The 55,478 providers of this specialty with any payment received $902.55 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.
Bills Medicare through one group practice
- Beaver Medical Group P CColton, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Kelvin Ma among 17,133 family medicine physician records in California
Kelvin Ma, D.O. is one of 17,133 family medicine physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2014, is newer than 71% of them.
- NPI issued2014 · 71% of these records are older, 26% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2014 · median 2005 among the 10,652 with a school on file
- Record last updated2018 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
76 family medicine physician records list a practice address in Colton
They are 76 of the 2,459 NPPES records with a practice address in Colton, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in Colton → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Ruben Avagimov, MDColton, CA 923241558376947
- Luis Chaname, D.O.Colton, CA 923241992712830
- Rosa Cortes, M.D.Colton, CA 923241154338010
- Emily Ebert, M.D., M.P.H.Colton, CA 923241730194127
- James Evans, M.D.Colton, CA 923241104858059
- Pooja Gupta, DOColton, CA 923241497762355
- Edward Keiderling, MDColton, CA 923241457366841
- Kuang-Chih Lo, D.O.Colton, CA 923241689617904
Common questions
What is Kelvin Ma, D.O.'s NPI number?
Kelvin Ma, D.O.'s National Provider Identifier (NPI) is 1174933279, issued on Apr 29, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Kelvin Ma, D.O. located?
The NPPES record lists a practice address at 1300 E Cooley Dr, Colton, CA, 92324. Phone: (909) 970-4100. Providers update this record themselves, so call before visiting.
How can I verify Kelvin Ma, D.O.'s license?
NPPES lists California license number 20A15631, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Kelvin Ma, D.O. prescribe under Medicare Part D?
In 2024, Kelvin Ma, D.O. had 11,561 Medicare Part D claims for 728 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.