Albert Chainey Umphrey, MD
Physical Medicine & Rehabilitation Physician · Palo Alto, CA
Albert Chainey Umphrey, MD is a physical medicine & rehabilitation physician with a practice address in Palo Alto, California, and NPI 1558530352, issued on Feb 26, 2008. Check the license (California A92557, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Albert Chainey Umphrey
- Credential
- MD
- Primary taxonomy
- Physical Medicine & Rehabilitation Physician 208100000X
- License number
- A92557 CA
Self-reported in NPPES; status is on the state search - Practice location
- 300 Pasteur Dr, Palo Alto, CA 94305
- Phone
- (650) 723-1410
- Enumerated
- Feb 26, 2008
- Record last updated
- Dec 14, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (650) 498-7546
- Medicare enrollment
- Enrolled (PECOS I20081107000384); accepts Medicare assignment
- Medical or professional school
- University Of California, Geffen School Of Medicine, 2003
- Entity
- Type 1 · individual
8 nearest physical medicine & rehabilitation physician records → All 1,549 in California → Look up another NPI →
Also registered at 300 Pasteur Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Deyaaldeen Abu Reesh, MDNeurological Surgery Physician1073201521
- Jose Acosta, MDEmergency Medicine Physician1104454446
- Tracie Adamson, NPNurse Practitioner1982765145
- Aderinsola Aderonmu, MSStudent in an Organized Health Care Education/Training Program1083301196
- Akuvi Claude Adossou, MDStudent in an Organized Health Care Education/Training Program1093394504
- Reena Agrawal, MDPhysical Medicine & Rehabilitation Physician1720257520
Verify Albert Chainey Umphrey in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A92557Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
44% fewer Medicare Part D claims than the average physical medicine & rehabilitation physician in 2024
408 Medicare Part D claims for 180 beneficiaries, against an average of 727 among the 7,448 providers of this specialty who prescribed in Part D.
Most prescribed
- Gabapentin167 claims
- Baclofen86 claims
- Meloxicam59 claims
- Prednisone26 claims
- Duloxetine Hcl15 claims
- Diclofenac Sodium12 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.
Bills Medicare through one group practice
- Permanente Medical Group IncSanta Clara, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Albert Chainey Umphrey among 1,549 physical medicine & rehabilitation physician records in California
Albert Chainey Umphrey, MD 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. Its NPI, issued in 2008, is newer than 41% of them.
- NPI issued2008 · 41% of these records are older, 55% newer
- In a Medicare fileYes · 59% of these records are
- In the CMS Doctors and Clinicians fileYes · 51% of these records are
- Graduated2003 · median 2008 among the 786 with a school on file
- Record last updated2021 · 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.
All 1,549 in California → Every provider in Palo Alto → Physical Medicine & Rehabilitation Physician nationwide →
The 8 physical medicine & rehabilitation physician records with the nearest ZIP codes
- Reena Agrawal, MDPalo Alto, CA 943051720257520
- Navjeet Boparai, MDPalo Alto, CA 943051407025299
- Edward Chaw, DOPalo Alto, CA 943051679742472
- Raymond Chou, MDStanford, CA 943051376934067
- Lisa Huynh, MDStanford, CA 943051245529775
- Rondy Lazaro, M.D.Stanford, CA 943051699194167
- Alyssa Mixon, DOStanford, CA 943051144671116
- Sophia Miryam Rose, MDStanford, CA 943051699904870
Common questions
What is Albert Chainey Umphrey, MD's NPI number?
Albert Chainey Umphrey, MD's National Provider Identifier (NPI) is 1558530352, issued on Feb 26, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Albert Chainey Umphrey, MD located?
The NPPES record lists a practice address at 300 Pasteur Dr, Palo Alto, CA, 94305. Phone: (650) 723-1410. Providers update this record themselves, so call before visiting.
How can I verify Albert Chainey Umphrey, MD's license?
NPPES lists California license number A92557, 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 Albert Chainey Umphrey, MD prescribe under Medicare Part D?
In 2024, Albert Chainey Umphrey, MD had 408 Medicare Part D claims for 180 beneficiaries; the average among physical medicine & rehabilitation physician prescribers was 727. 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.