Michael J. Shaw, MD
Adult Medicine Physician · Irvine, CA
Michael J. Shaw, MD is an adult medicine physician with a practice address in Irvine, California, and NPI 1952369225, issued on May 3, 2006. Check the license (California G39931, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Michael J. Shaw
- Credential
- MD
- Primary taxonomy
- Adult Medicine Physician 207QA0505X
- License number
- G39931 CA
Self-reported in NPPES; status is on the state search - Practice location
- 4950 Barranca Pkwy, Irvine, CA 92604
- Phone
- (949) 552-8585
- Enumerated
- May 3, 2006
- Record last updated
- Sep 7, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (949) 552-8615
- Entity
- Type 1 · individual
8 nearest adult medicine physician records → All 386 in California → Look up another NPI →
Also registered at 4950 Barranca Pkwy
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Farrokh Alemzadeh, MDInternal Medicine Physician1528094828
- Yoshitaka Asano, D.C., L.AC.Chiropractor1790800746
- Meigan Everts, M.D.Pediatrics Physician1457348039
- Hanaa Fam, M.DPsychiatry Physician1558311456
- Said Hakim, M.D.General Practice Physician1275579302
- Michael Heaslet, D.P.M.Foot & Ankle Surgery Podiatrist1790735397
Verify Michael J. Shaw in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G39931Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average adult medicine physician in 2024
17 Medicare Part D claims, against an average of 3,002 among the 1,307 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% 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.
Michael J. Shaw among 386 adult medicine physician records in California
Michael J. Shaw, MD is one of 386 adult medicine physician 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 2006, is newer than 3% of them.
- NPI issued2006 · 3% of these records are older, 65% newer
- In a Medicare fileYes · 69% of these records are
- In the CMS Doctors and Clinicians fileNo · 48% of these records are
- Record last updated2012 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207QA0505X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Adult Medicine Physician providers in California
There are 386 adult medicine physician records in California.
All 386 in California → Every provider in Irvine → Adult Medicine Physician nationwide →
The 8 adult medicine physician records with the nearest ZIP codes
- Falguni Patel, FNPIrvine, CA 926041316752991
- Floragrace Surell, M.D.Irvine, CA 926021265966386
- James Kabellis, MDWildomar, CA 925951073193629
- Anita Jackson, M.D.Temecula, CA 925911063519486
- John Alevizos, DOIrvine, CA 926181689671380
- Ferozan KarimiTemecula, CA 925901992062186
- Cecilia Pham, DOCosta Mesa, CA 926261962031294
- Raul Miranda, MDCosta Mesa, CA 926271407895006
Common questions
What is Michael J. Shaw, MD's NPI number?
Michael J. Shaw, MD's National Provider Identifier (NPI) is 1952369225, issued on May 3, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Michael J. Shaw, MD located?
The NPPES record lists a practice address at 4950 Barranca Pkwy, Irvine, CA, 92604. Phone: (949) 552-8585. Providers update this record themselves, so call before visiting.
How can I verify Michael J. Shaw, MD's license?
NPPES lists California license number G39931, 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 Michael J. Shaw, MD prescribe under Medicare Part D?
In 2024, Michael J. Shaw, MD had 17 Medicare Part D claims; the average among adult medicine physician prescribers was 3,002. 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.