Gregory Michael Ku, MD PHD
Endocrinology, Diabetes & Metabolism Physician · San Francisco, CA
Gregory Michael Ku, MD PHD is an endocrinology, diabetes & metabolism physician with a practice address in San Francisco, California, and NPI 1033241658, issued on Mar 9, 2007. Check the license (California A95072, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Gregory Michael Ku
- Credential
- MD PHD
- Primary taxonomy
- Endocrinology, Diabetes & Metabolism Physician 207RE0101X
- License number
- A95072 CA
Self-reported in NPPES; status is on the state search - Practice location
- 513 Parnassus Ave Box 0534, San Francisco, CA 94143
- Phone
- (415) 476-1114
- Enumerated
- Mar 9, 2007
- Record last updated
- Dec 18, 2008 (not updated in 18 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20090209000301); accepts Medicare assignment
- Medical or professional school
- University Of California, San Francisco School Of Medicine, 2004
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest endocrinology, diabetes & metabolism physician records → All 1,131 in California → Look up another NPI →
Verify Gregory Michael Ku in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A95072Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
73% fewer Medicare Part D claims than the average endocrinology, diabetes & metabolism physician in 2024
716 Medicare Part D claims for 85 beneficiaries, against an average of 2,630 among the 8,223 providers of this specialty who prescribed in Part D. Brand-name drugs were 56% of claims.
Most prescribed
- Ozempic92 claims
- Metformin Hcl Er38 claims
- Jardiance35 claims
- Levothyroxine Sodium35 claims
- Rosuvastatin Calcium35 claims
- Lantus Solostar34 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 74.5 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through 2 group practices
- Regents OF The University OF CaliforniaSan Francisco, CA
- University OF California San FranciscoSan Francisco, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gregory Michael Ku among 1,131 endocrinology, diabetes & metabolism physician records in California
Gregory Michael Ku, MD PHD 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 2007, is newer than 46% of them.
- NPI issued2007 · 46% of these records are older, 42% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated2004 · median 2003 among the 779 with a school on file
- Record last updated2008 · 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 San Francisco → Endocrinology, Diabetes & Metabolism Physician nationwide →
The 8 endocrinology, diabetes & metabolism physician records with the nearest ZIP codes
- Mark Anderson, MDSan Francisco, CA 941431013971001
- Lewis Blevins, MDSan Francisco, CA 941431295822393
- Merl Charles, MD PHDSan Francisco, CA 941431023152055
- Ira Goldfine, MDSan Francisco, CA 941431508823675
- Eric Goldman, M.D.San Francisco, CA 941431922194869
- Elizabeth Holt, MDSan Francisco, CA 941431184607392
- Victoria Hsiao, MD, PHDSan Francisco, CA 941431659418655
- Martha Kennedy, M.D.San Francisco, CA 941431982651022
Common questions
What is Gregory Michael Ku, MD PHD's NPI number?
Gregory Michael Ku, MD PHD's National Provider Identifier (NPI) is 1033241658, issued on Mar 9, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Gregory Michael Ku, MD PHD located?
The NPPES record lists a practice address at 513 Parnassus Ave Box 0534, San Francisco, CA, 94143. Phone: (415) 476-1114. Providers update this record themselves, so call before visiting.
How can I verify Gregory Michael Ku, MD PHD's license?
NPPES lists California license number A95072, 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 Gregory Michael Ku, MD PHD prescribe under Medicare Part D?
In 2024, Gregory Michael Ku, MD PHD had 716 Medicare Part D claims for 85 beneficiaries; the average among endocrinology, diabetes & metabolism physician prescribers was 2,630. Part D covers Medicare prescriptions only.
What is Gregory Michael Ku, MD PHD's MIPS final score?
The 2023 MIPS final score is 74.5 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.