Melissa Frederick, M.D.
Internal Medicine Physician · Millbrae, CA
Melissa Frederick, M.D. is an internal medicine physician with a practice address in Millbrae, California, and NPI 1033238076, issued on Mar 29, 2007. Check the license (California A116626, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Melissa Frederick
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- A116626 CA
4301084237 MI
Self-reported in NPPES; status is on the state search - Practice location
- 423 Broadway, Millbrae, CA 94030
- Phone
- (650) 732-9721
- Enumerated
- Mar 29, 2007
- Entity
- Type 1 · individual
Also registered at 423 Broadway
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Teklehaimanot Abraha, DNPFamily Nurse Practitioner1013441229
- Steven Chinn, D.P.M.Podiatrist1477619120
- Andrew Ng, MDInternal Medicine Physician1871716910
Verify Melissa Frederick in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A116626Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
4.0 times the Medicare Part D claims of the average internal medicine physician in 2024
11,099 Medicare Part D claims for 230 beneficiaries, against an average of 2,785 among the 127,794 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 249 claims were for opioids.
Most prescribed
- Atorvastatin Calcium861 claims
- Gabapentin458 claims
- Amlodipine Besylate399 claims
- Furosemide378 claims
- Levothyroxine Sodium351 claims
- Eliquis310 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.
The Medicare quality score for 2023: 100 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
One hospital or facility affiliation
- Acn Medical Group IncMillbrae, CA
Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
3 internal medicine physician records list a Millbrae practice address
They are 3 of the 164 NPPES records with a Millbrae practice address, and 20,403 internal medicine physician records in California.
All 3 in Millbrae → All 20,403 in California → Every provider in Millbrae →
Other internal medicine physician records in California
- Jacob Aaron, MDSan Francisco, CA1407202518
- Alistair Aaronson, MDStanford, CA1457628760
- Jose Abad., MDSacramento, CA1144607219
- Donna Abare, MDOakland, CA1386722155
- Marce AbareScotts Valley, CA1457744708
- Samuel Abarte, M.D.Chula Vista, CA1578535498
- Alexander Abary, MDLong Beach, CA1104995919
- Luba Abascal, MDSan Francisco, CA1023180874
- Michael Abate, MDSacramento, CA1548248131
- Wali Abawi, D.O.Joshua Tree, CA1104362268
Common questions
What is Melissa Frederick, M.D.'s NPI number?
Melissa Frederick, M.D.'s National Provider Identifier (NPI) is 1033238076, issued on Mar 29, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Melissa Frederick, M.D. located?
The NPPES record lists a practice address at 423 Broadway, Millbrae, CA, 94030. Phone: (650) 732-9721. Providers update this record themselves, so call before visiting.
How can I verify Melissa Frederick, M.D.'s license?
NPPES lists California license number A116626, 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 Melissa Frederick, M.D. prescribe under Medicare Part D?
In 2024, Melissa Frederick, M.D. had 11,099 Medicare Part D claims for 230 beneficiaries; the average among internal medicine physician prescribers was 2,785. Part D covers Medicare prescriptions only.
What is Melissa Frederick, M.D.'s Medicare quality score?
The 2023 MIPS final score is 100 of 100. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.