Frank Allen Perlroth, M.D.
Internal Medicine Physician · Palo Alto, CA
Frank Allen Perlroth, M.D. is an internal medicine physician with a practice address in Palo Alto, California, and NPI 1083764948, issued on Jan 11, 2007. Check the license (California G21571, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Frank Allen Perlroth
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- G21571 CA
Self-reported in NPPES; status is on the state search - Practice location
- 805 EL Camino Real, Palo Alto, CA 94301
- Phone
- (650) 329-0440
- Enumerated
- Jan 11, 2007
- Record last updated
- Oct 29, 2010 (not updated in 16 years: call before relying on the address or phone)
- Fax
- (650) 321-3589
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
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A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Frank Allen Perlroth in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G21571Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
100% fewer Medicare Part D claims than the average internal medicine physician in 2024
13 Medicare Part D claims, against an average of 3,176 among the 108,855 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.
Frank Allen Perlroth among 17,696 internal medicine physician records in California
Frank Allen Perlroth, M.D. is one of 17,696 internal medicine physician records with a practice address in California. 79% 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 44% of them.
- NPI issued2007 · 44% of these records are older, 44% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 63% of these records are
- Record last updated2010 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
187 internal medicine physician records list a practice address in Palo Alto
They are 187 of the 7,617 NPPES records with a practice address in Palo Alto, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Palo Alto → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
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- Lisa Gervin, M.D.Palo Alto, CA 943011962425157
Common questions
What is Frank Allen Perlroth, M.D.'s NPI number?
Frank Allen Perlroth, M.D.'s National Provider Identifier (NPI) is 1083764948, issued on Jan 11, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Frank Allen Perlroth, M.D. located?
The NPPES record lists a practice address at 805 EL Camino Real, Palo Alto, CA, 94301. Phone: (650) 329-0440. Providers update this record themselves, so call before visiting.
How can I verify Frank Allen Perlroth, M.D.'s license?
NPPES lists California license number G21571, 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 Frank Allen Perlroth, M.D. prescribe under Medicare Part D?
In 2024, Frank Allen Perlroth, M.D. had 13 Medicare Part D claims; the average among internal medicine physician prescribers was 3,176. 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.