NPPES file of Aug 9, 2026

Ken Hsu, M.D.

Orthopaedic Surgery of the Spine Physician · San Francisco, CA

Ken Hsu, M.D. is an orthopaedic surgery of the spine physician with a practice address in San Francisco, California, and NPI 1275695843, issued on Dec 13, 2006. Check the license (California G35379, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1275695843
Name
Ken Hsu
Credential
M.D.
Primary taxonomy
Orthopaedic Surgery of the Spine Physician 207XS0117X
License number
G35379 CA
Self-reported in NPPES; status is on the state search
Practice location
1 Shrader St, San Francisco, CA 94117
Phone
(415) 750-5836
Enumerated
Dec 13, 2006
Record last updated
May 29, 2008 (not updated in 18 years: call before relying on the address or phone)
Fax
(415) 750-8103
Medicaid ID
00G353790 CA
Medicare enrollment
Enrolled (PECOS I20081209000648); accepts Medicare assignment
Medical or professional school
New York University Medical College - Nlg, 1976
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 1 Shrader St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Charles Allison, M.D.Internal Medicine Physician1376541060
  2. Sergio Bello, MDCardiovascular Disease Physician1407868367
  3. Carl Bricca, D.O.Internal Medicine Physician1114925385
  4. Jeaniesar Caluag, M.D.Internal Medicine Physician1720246705
  5. Jose Eguia, MDInfectious Disease Physician1972565307
  6. Robert Ellis, M.D.Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician1710036777

Verify Ken Hsu in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G35379
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

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27% fewer Medicare Part D claims than the average orthopaedic surgery of the spine physician in 2024

277 Medicare Part D claims for 101 beneficiaries, against an average of 381 among the 1,714 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims. 147 claims were for opioids.

  1. Ken Hsu277
  2. Specialty average381

Most prescribed

  1. Hydrocodone-Acetaminophen98 claims
  2. Gabapentin90 claims
  3. Oxycodone-Acetaminophen36 claims
  4. Ibuprofen14 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 MIPS final score for 2023 (Medicare payment program): 16 of 100

The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score0.0
  2. Costout of 100 · 30%53.4
  3. Promoting interoperabilitynot scored (reweighted)
  4. Improvement activities0 of 40 points · 15%0.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $40.50

2 payments; by number, the most common kind was food and beverage; the largest payer was Vertex Pharmaceuticals Incorporated. The 1,726 providers of this specialty with any payment received $34,071.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Ken Hsu$41
  2. Specialty average$34,072

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. San Francisco Spine Surgeons PCSan Francisco, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Ken Hsu among 314 orthopaedic surgery of the spine physician records in California

Ken Hsu, M.D. is one of 314 orthopaedic surgery of the spine 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 2006, is newer than 6% of them.

  • NPI issued2006 · 6% of these records are older, 53% newer
  • In a Medicare fileYes · 87% of these records are
  • In the CMS Doctors and Clinicians fileYes · 72% of these records are
  • Graduated1976 · median 2003 among the 226 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 207XS0117X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Orthopaedic Surgery of the Spine Physician providers in California

There are 314 orthopaedic surgery of the spine physician records in California.

The 8 orthopaedic surgery of the spine physician records with the nearest ZIP codes

  1. James Zucherman, M.D.San Francisco, CA 941171194887760
  2. Rayshad Oshtory, MDSan Francisco, CA 941151023204815
  3. Jeremie Larouche, M.D.San Francisco, CA 941101457729089
  4. William Campbell, D.O.San Francisco, CA 941091780611426
  5. Clement Jones, MDSan Francisco, CA 941091245221373
  6. Mohamed Al-Amoodi, MDSan Francisco, CA 941431326922196
  7. Ahmed Aljahwari, MD,FRCSCSan Francisco, CA 941431790925865
  8. Abdullah Alshammari, MD, FRCSCSan Francisco, CA 941431437982477

Common questions

What is Ken Hsu, M.D.'s NPI number?

Ken Hsu, M.D.'s National Provider Identifier (NPI) is 1275695843, issued on Dec 13, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Ken Hsu, M.D. located?

The NPPES record lists a practice address at 1 Shrader St, San Francisco, CA, 94117. Phone: (415) 750-5836. Providers update this record themselves, so call before visiting.

How can I verify Ken Hsu, M.D.'s license?

NPPES lists California license number G35379, 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 Ken Hsu, M.D. prescribe under Medicare Part D?

In 2024, Ken Hsu, M.D. had 277 Medicare Part D claims for 101 beneficiaries; the average among orthopaedic surgery of the spine physician prescribers was 381. Part D covers Medicare prescriptions only.

What is Ken Hsu, M.D.'s MIPS final score?

The 2023 MIPS final score is 16 of 100. 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.