David Clark Hay, M.D.
Orthopaedic Hand Surgery Physician · Anaheim, CA
David Clark Hay, M.D. is an orthopaedic hand surgery physician with a practice address in Anaheim, California, and NPI 1891982260, issued on Oct 1, 2007. Check the license (California A99546, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- David Clark Hay
- Credential
- M.D.
- Primary taxonomy
- Orthopaedic Hand Surgery Physician 207XS0106X
- License number
- A99546 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2400 E Katella Ave, Anaheim, CA 92806
- Phone
- (714) 450-4514
- Enumerated
- Oct 1, 2007
- Record last updated
- Mar 25, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (714) 937-1210
- Medicare enrollment
- Enrolled (PECOS I20110927000325); accepts Medicare assignment
- Medical or professional school
- Saint Louis University School Of Medicine, 2005
- Entity
- Type 1 · individual
Also registered at 2400 E Katella Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Stephanie Chin Mammen, PSY.D.Clinical Psychologist1184851974
- Ludyvina Hernandez, DOCTORAL CANDIDATEStudent in an Organized Health Care Education/Training Program1407579113
- Ted LeeOccupational Therapist1285034512
- Natalie McNallyPhysical Therapist1174809610
- Julieann Tsai, OTR/LOccupational Therapist1528463601
Verify David Clark Hay in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A99546Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
78% fewer Medicare Part D claims than the average orthopaedic hand surgery physician in 2024
40 Medicare Part D claims for 28 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.
Most prescribed
- Meloxicam16 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): 85.7 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 one group practice
- Cedars-Sinai Medical Care FoundationNewport Beach, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Orthopaedic Hand Surgery Physician providers in California
There are 288 orthopaedic hand surgery physician records in California.
Other orthopaedic hand surgery physician records in California
- Reid Abrams, MDSan Diego, CA1548202245
- Anna Acosta, M.D.Long Beach, CA1285933424
- Anthony Ahn, M.D.Manhattan Beach, CA1649282302
- Richard Ahn, M.D.Lakewood, CA1568809226
- Gregory Alberton, M.D.San Diego, CA1457310179
- Kareme Alder, MDRedwood City, CA1396322210
- Robert Allen, MDSacramento, CA1700876026
- Mohana Amirtharajah, M.D.San Francisco, CA1902014574
- Edwin Ashley, M.D.Beverly Hills, CA1417920919
- David Auerbach, M.D.Van Nuys, CA1851320352
Common questions
What is David Clark Hay, M.D.'s NPI number?
David Clark Hay, M.D.'s National Provider Identifier (NPI) is 1891982260, issued on Oct 1, 2007. An NPI identifies a provider in billing; it is not a license.
Where is David Clark Hay, M.D. located?
The NPPES record lists a practice address at 2400 E Katella Ave, Anaheim, CA, 92806. Phone: (714) 450-4514. Providers update this record themselves, so call before visiting.
How can I verify David Clark Hay, M.D.'s license?
NPPES lists California license number A99546, 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 David Clark Hay, M.D. prescribe under Medicare Part D?
In 2024, David Clark Hay, M.D. had 40 Medicare Part D claims for 28 beneficiaries; the average among orthopaedic hand surgery physician prescribers was 186. Part D covers Medicare prescriptions only.
What is David Clark Hay, M.D.'s MIPS final score?
The 2023 MIPS final score is 85.7 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.