Allen Frederick Namath Gromme, MD
Critical Care Medicine (Internal Medicine) Physician · Los Altos, CA
Allen Frederick Namath Gromme, MD is a critical care medicine (internal medicine) physician with a practice address in Los Altos, California, and NPI 1275653586, issued on Mar 30, 2007. Check the license (California A80406, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Allen Frederick Namath Gromme
- Credential
- MD
- Primary taxonomy
- Critical Care Medicine (Internal Medicine) Physician 207RC0200X
- License number
- A80406 CA
Self-reported in NPPES; status is on the state search - Practice location
- 199 1St St Ste 310, Los Altos, CA 94022
- Phone
- (650) 713-0700
- Enumerated
- Mar 30, 2007
- Record last updated
- Apr 16, 2024
- Fax
- (650) 713-0703
- Entity
- Type 1 · individual
8 nearest critical care medicine (internal medicine) physician records → All 723 in California → Look up another NPI →
Also registered at 199 1St St Ste 310
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Amy Elliott, MDRheumatology Physician1124243092
Verify Allen Frederick Namath Gromme in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A80406Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
56% fewer Medicare Part D claims than the average critical care medicine (internal medicine) physician in 2024
306 Medicare Part D claims for 27 beneficiaries, against an average of 696 among the 2,873 providers of this specialty who prescribed in Part D. 12 claims were for opioids.
Most prescribed
- Amlodipine Besylate14 claims
- Atorvastatin Calcium11 claims
- Losartan Potassium11 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.
Allen Frederick Namath Gromme among 723 critical care medicine (internal medicine) physician records in California
Allen Frederick Namath Gromme, MD is one of 723 critical care medicine (internal medicine) physician records with a practice address in California. 87% 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 40% of them.
- NPI issued2007 · 40% of these records are older, 46% newer
- In a Medicare fileYes · 87% of these records are
- In the CMS Doctors and Clinicians fileNo · 77% of these records are
- Record last updated2024 · 50% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0200X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Critical Care Medicine (Internal Medicine) Physician providers in California
There are 723 critical care medicine (internal medicine) physician records in California.
All 723 in California → Every provider in Los Altos → Critical Care Medicine (Internal Medicine) Physician nationwide →
The 8 critical care medicine (internal medicine) physician records with the nearest ZIP codes
- Alex Balekian, M.D.Daly City, CA 940151205912656
- Juan Caraballo, MDDaly City, CA 940151508125907
- Fang-Yu Chao, M.D.Daly City, CA 940151417116641
- Baroon Rai, M.D.Daly City, CA 940151275748949
- Ajay Dharia, MDBurlingame, CA 940101548595127
- Sigal Tene, MDRedwood City, CA 940621184600702
- Vineet Kapur, M.D.San Carlos, CA 940701073557203
- Christine Angeles, MDSouth San Francisco, CA 940801508944109
Common questions
What is Allen Frederick Namath Gromme, MD's NPI number?
Allen Frederick Namath Gromme, MD's National Provider Identifier (NPI) is 1275653586, issued on Mar 30, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Allen Frederick Namath Gromme, MD located?
The NPPES record lists a practice address at 199 1St St Ste 310, Los Altos, CA, 94022. Phone: (650) 713-0700. Providers update this record themselves, so call before visiting.
How can I verify Allen Frederick Namath Gromme, MD's license?
NPPES lists California license number A80406, 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 Allen Frederick Namath Gromme, MD prescribe under Medicare Part D?
In 2024, Allen Frederick Namath Gromme, MD had 306 Medicare Part D claims for 27 beneficiaries; the average among critical care medicine (internal medicine) physician prescribers was 696. 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.