NPPES file of Aug 9, 2026

Christopher A. Cox, M.D.

Orthopaedic Hand Surgery Physician · Oakland, CA

Christopher A. Cox, M.D. is an orthopaedic hand surgery physician with a practice address in Oakland, California, and NPI 1013104215, issued on Oct 2, 2007. Check the license (California A100870, 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 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1013104215
Name
Christopher A. Cox
Credential
M.D.
Primary taxonomy
Orthopaedic Hand Surgery Physician 207XS0106X
License numbers
A100870 CA
247247 MA
Self-reported in NPPES; status is on the state search
Practice location
1800 Harrison St FL 7, Oakland, CA 94612
Phone
(925) 295-4000
Enumerated
Oct 2, 2007
Record last updated
Feb 11, 2022
Medicare enrollment
Enrolled (PECOS I20121214000100); accepts Medicare assignment
Medical or professional school
Washington University School Of Medicine, 2006
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.
Download card Updates feed

8 nearest orthopaedic hand surgery physician records → All 288 in California → Look up another NPI →

Also registered at 1800 Harrison St FL 7

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

  1. Francis Crosson, M.D.Pediatric Infectious Diseases Physician1629205679
  2. Tamar Edwards, PA-CPhysician Assistant1437782554
  3. Sydney Ferris Williams, A.S.W.Clinical Social Worker1114223989
  4. Hui HanOccupational Medicine Physician1386809093
  5. Elizabeth Hur, MDObstetrics & Gynecology Physician1659800365
  6. Truc Le, CRNACertified Registered Nurse Anesthetist1538452529

Verify Christopher A. Cox in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A100870    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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Is this page about you? You can ask us to correct, restrict or remove it: how.

75% fewer Medicare Part D claims than the average orthopaedic hand surgery physician in 2024

47 Medicare Part D claims for 27 beneficiaries, against an average of 186 among the 2,203 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims. 29 claims were for opioids.

  1. Christopher Cox47
  2. Specialty average186

Most prescribed

  1. Hydrocodone-Acetaminophen11 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.

Industry payments in 2024: $65.22

2 payments; by number, the most common kind was food and beverage; the largest payer was Sanara MedTech Inc. The 1,819 providers of this specialty with any payment received $5,529.86 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Christopher Cox$65.22
  2. Specialty average$5,529.86

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. Permanente Medical Group IncWalnut Creek, CA

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

Christopher A. Cox among 288 orthopaedic hand surgery physician records in California

Christopher A. Cox, M.D. is one of 288 orthopaedic hand surgery physician records with a practice address in California. 85% 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 48% of them.

  • NPI issued2007 · 48% of these records are older, 38% newer
  • In a Medicare fileYes · 85% of these records are
  • In the CMS Doctors and Clinicians fileYes · 74% of these records are
  • Graduated2006 · median 2004 among the 214 with a school on file
  • Record last updated2022 · 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 207XS0106X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Orthopaedic Hand Surgery Physician providers in California

There are 288 orthopaedic hand surgery physician records in California.

All 288 in California → Every provider in Oakland → Orthopaedic Hand Surgery Physician nationwide →

The 8 orthopaedic hand surgery physician records with the nearest ZIP codes

  1. Mathias Masem, M.D.Oakland, CA 946121508810938
  2. Kendrick Lee, MDOakland, CA 946111508833377
  3. Austin Pitcher, MD, PHDOakland, CA 946111023428901
  4. Eric Stuffmann, M.D.Oakland, CA 946111922294719
  5. Suresh Nayar, MDOakland, CA 946091760805055
  6. Wayne Pan, MD, PHD, MBAOakland, CA 946081114265949
  7. Divya Singh, M.D.Oakland, CA 946021235264540
  8. Tyler Clark, MDWalnut Creek, CA 945981831453778

Common questions

What is Christopher A. Cox, M.D.'s NPI number?

Christopher A. Cox, M.D.'s National Provider Identifier (NPI) is 1013104215, issued on Oct 2, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Christopher A. Cox, M.D. located?

The NPPES record lists a practice address at 1800 Harrison St FL 7, Oakland, CA, 94612. Phone: (925) 295-4000. Providers update this record themselves, so call before visiting.

How can I verify Christopher A. Cox, M.D.'s license?

NPPES lists California license number A100870, 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 Christopher A. Cox, M.D. prescribe under Medicare Part D?

In 2024, Christopher A. Cox, M.D. had 47 Medicare Part D claims for 27 beneficiaries; the average among orthopaedic hand surgery physician prescribers was 186. 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.