Grace Chan, MD
Endocrinology, Diabetes & Metabolism Physician · Palo Alto, CA
Grace Chan, MD is an endocrinology, diabetes & metabolism physician with a practice address in Palo Alto, California, and NPI 1023027729, issued on Aug 5, 2006. Check the license (California A104102, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Grace Chan
- Credential
- MD
- Primary taxonomy
- Endocrinology, Diabetes & Metabolism Physician 207RE0101X
- License number
- A104102 CA
Self-reported in NPPES; status is on the state search - Practice location
- 795 EL Camino Real, Palo Alto, CA 94301
- Phone
- (650) 853-2976
- Enumerated
- Aug 5, 2006
- Record last updated
- May 27, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20090105000537); accepts Medicare assignment
- Medical or professional school
- Perelman School Of Med At The University Of Pennsylvania, 2001
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest endocrinology, diabetes & metabolism physician records → All 1,131 in California → Look up another NPI →
Also registered at 795 EL Camino Real
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Grace Chan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A104102Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
54% fewer Medicare Part D claims than the average endocrinology, diabetes & metabolism physician in 2024
1,210 Medicare Part D claims for 169 beneficiaries, against an average of 2,630 among the 8,223 providers of this specialty who prescribed in Part D. Brand-name drugs were 48% of claims.
Most prescribed
- Alendronate Sodium168 claims
- Levothyroxine Sodium103 claims
- Jardiance84 claims
- Synthroid82 claims
- Metformin Hcl Er81 claims
- Ozempic77 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
- Sutter Bay Medical FoundationSan Mateo, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Grace Chan among 1,131 endocrinology, diabetes & metabolism physician records in California
Grace Chan, MD is one of 1,131 endocrinology, diabetes & metabolism physician records with a practice address in California. 84% 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 5% of them.
- NPI issued2006 · 5% of these records are older, 54% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated2001 · median 2003 among the 779 with a school on file
- Record last updated2020 · 57% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RE0101X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Endocrinology, Diabetes & Metabolism Physician providers in California
There are 1,131 endocrinology, diabetes & metabolism physician records in California.
All 1,131 in California → Every provider in Palo Alto → Endocrinology, Diabetes & Metabolism Physician nationwide →
The 8 endocrinology, diabetes & metabolism physician records with the nearest ZIP codes
- Carol Clewans, M.D.Palo Alto, CA 943011629080122
- Nandini Joseph, MDPalo Alto, CA 943011912137878
- Norra Kwong, M.D.Palo Alto, CA 943011689840415
- Randolph LindePalo Alto, CA 943011669484127
- Anne Porzig, M.D.Palo Alto, CA 943011144420902
- Daniele Rottkamp, MDPalo Alto, CA 943011740492925
- Swaytha Yalamanchi, MDPalo Alto, CA 943011649596180
- Kaniksha Desai, MDPalo Alto, CA 943041316266778
Common questions
What is Grace Chan, MD's NPI number?
Grace Chan, MD's National Provider Identifier (NPI) is 1023027729, issued on Aug 5, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Grace Chan, MD located?
The NPPES record lists a practice address at 795 EL Camino Real, Palo Alto, CA, 94301. Phone: (650) 853-2976. Providers update this record themselves, so call before visiting.
How can I verify Grace Chan, MD's license?
NPPES lists California license number A104102, 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 Grace Chan, MD prescribe under Medicare Part D?
In 2024, Grace Chan, MD had 1,210 Medicare Part D claims for 169 beneficiaries; the average among endocrinology, diabetes & metabolism physician prescribers was 2,630. 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.