Aaron U. Parnell, ACST
Physical Medicine & Rehabilitation Physician · San Mateo, CA
Aaron U. Parnell, ACST is a physical medicine & rehabilitation physician with a practice address in San Mateo, California, and NPI 1629611405, issued on Oct 23, 2019. Check the license (California 00000000001, as entered in NPPES) on the Medical Board of California; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Aaron U. Parnell
- Credential
- ACST
- Primary taxonomy
- Physical Medicine & Rehabilitation Physician 208100000X
- License number
- 00000000001 CA
Self-reported in NPPES; status is on the state search - Practice location
- 407 N San Mateo Dr, San Mateo, CA 94401
- Phone
- (415) 516-4358
- Enumerated
- Oct 23, 2019
- Record last updated
- Oct 23, 2019 (not updated in 7 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest physical medicine & rehabilitation physician records → All 1,549 in California → Look up another NPI →
Also registered at 407 N San Mateo Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Rucha Kelkar, DPTPhysical Therapist1518129394
- Lindsay RademacherRehabilitation Chiropractor1982812178
- Merissa Tsang, L.AC, DIPL. OMAcupuncturist1710112883
- Lisa Walsh, DCChiropractor1497888242
Verify Aaron U. Parnell in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 00000000001Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Aaron U. Parnell among 1,549 physical medicine & rehabilitation physician records in California
Aaron U. Parnell, ACST is one of 1,549 physical medicine & rehabilitation physician records with a practice address in California. 59% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2019, is newer than 74% of them.
- NPI issued2019 · 74% of these records are older, 21% newer
- In a Medicare fileNo · 59% of these records are
- In the CMS Doctors and Clinicians fileNo · 51% of these records are
- Record last updated2019 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208100000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Physical Medicine & Rehabilitation Physician providers in California
There are 1,549 physical medicine & rehabilitation physician records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 1,549 in California → Every provider in San Mateo → Physical Medicine & Rehabilitation Physician nationwide →
The 8 physical medicine & rehabilitation physician records with the nearest ZIP codes
- Lefkos Aftonomos, M.D.San Mateo, CA 944011972544088
- Yung Chen, MDSan Mateo, CA 944011386601623
- Tram Nguyen, M.D.San Mateo, CA 944011336257534
- Christian Sustrina, PTASan Mateo, CA 944031013737568
- Kari Robinson, PTPalo Alto, CA 943061477831089
- Navjeet Boparai, MDPalo Alto, CA 943051407025299
- Edward Chaw, DOPalo Alto, CA 943051679742472
- Raymond Chou, MDStanford, CA 943051376934067
Common questions
What is Aaron U. Parnell, ACST's NPI number?
Aaron U. Parnell, ACST's National Provider Identifier (NPI) is 1629611405, issued on Oct 23, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Aaron U. Parnell, ACST located?
The NPPES record lists a practice address at 407 N San Mateo Dr, San Mateo, CA, 94401. Phone: (415) 516-4358. Providers update this record themselves, so call before visiting.
How can I verify Aaron U. Parnell, ACST's license?
NPPES lists California license number 00000000001, 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.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.