Miles Merwin, MD
Family Medicine Physician · Irvine, CA
Miles Merwin, MD is a family medicine physician with a practice address in Irvine, California, and NPI 1588702286, issued on Feb 2, 2007. Check the license (California G47665, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Miles Merwin
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- G47665 CA
Self-reported in NPPES; status is on the state search - Practice location
- 17585 Harvard Ave Ste D, Irvine, CA 92614
- Phone
- (858) 554-1212
- Enumerated
- Feb 2, 2007
- Record last updated
- Nov 20, 2025
- Fax
- (858) 795-1195
- Medicare enrollment
- Enrolled (PECOS I20120515000642); accepts Medicare assignment
- Medical or professional school
- University Of North Dakota School Of Medicine, 1990
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Also registered at 17585 Harvard Ave Ste D
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Chaehyeon DamkoFamily Nurse Practitioner1215717343
Verify Miles Merwin in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G47665Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
97% fewer Medicare Part D claims than the average family medicine physician in 2024
104 Medicare Part D claims for 52 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of 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 practice group's MIPS final score for 2023 (Medicare payment program): 76.7 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. 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, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Monica Perlman MD IncLa Jolla, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Miles Merwin among 17,133 family medicine physician records in California
Miles Merwin, MD 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 2007, is newer than 41% of them.
- NPI issued2007 · 41% of these records are older, 47% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated1990 · median 2005 among the 10,652 with a school on file
- Record last updated2025 · 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).
148 family medicine physician records list a practice address in Irvine
They are 148 of the 7,778 NPPES records with a practice address in Irvine, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in Irvine → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Mareen Greenway, M.DIrvine, CA 926141619388972
- Duy Nguyen, D.O.Irvine, CA 926141093100232
- Thomas Hudson, MDIrvine, CA 926121184600785
- Susan Lee, DO, MPHIrvine, CA 926121972967065
- Maria Murchie, M.D.Irvine, CA 926121770657454
- Mary Raleigh, DOIrvine, CA 926121457542094
- Ellika Sadr, M.DIrvine, CA 926121891054235
- Viridiana Saenz, MDIrvine, CA 926121588305825
Common questions
What is Miles Merwin, MD's NPI number?
Miles Merwin, MD's National Provider Identifier (NPI) is 1588702286, issued on Feb 2, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Miles Merwin, MD located?
The NPPES record lists a practice address at 17585 Harvard Ave Ste D, Irvine, CA, 92614. Phone: (858) 554-1212. Providers update this record themselves, so call before visiting.
How can I verify Miles Merwin, MD's license?
NPPES lists California license number G47665, 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 Miles Merwin, MD prescribe under Medicare Part D?
In 2024, Miles Merwin, MD had 104 Medicare Part D claims for 52 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
What is Miles Merwin, MD's MIPS final score?
The 2023 MIPS final score is 76.7 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.