Paul Henry Kirz, M.D.
Orthopaedic Surgery Physician · Fullerton, CA
Paul Henry Kirz, M.D. is an orthopaedic surgery physician with a practice address in Fullerton, California, and NPI 1336418011, issued on Dec 24, 2011. Check the license (California G45258, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Paul Henry Kirz
- Credential
- M.D.
- Primary taxonomy
- Orthopaedic Surgery Physician 207X00000X
- License number
- G45258 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1063 Carmel Cir, Fullerton, CA 92833
- Phone
- (714) 871-4173
- Enumerated
- Dec 24, 2011
- Record last updated
- Sep 27, 2024
- Entity
- Type 1 · individual
8 nearest orthopaedic surgery physician records → All 2,276 in California → Look up another NPI →
Verify Paul Henry Kirz in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G45258Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
94% fewer Medicare Part D claims than the average orthopaedic surgery physician in 2024
20 Medicare Part D claims, against an average of 346 among the 16,516 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Venlafaxine Hcl Er12 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.
Paul Henry Kirz among 2,276 orthopaedic surgery physician records in California
Paul Henry Kirz, M.D. is one of 2,276 orthopaedic surgery physician records with a practice address in California. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 75% of them.
- NPI issued2011 · 75% of these records are older, 23% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileNo · 59% of these records are
- Record last updated2024 · 66% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207X00000X 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 Physician providers in California
There are 2,276 orthopaedic surgery physician records in California.
All 2,276 in California → Every provider in Fullerton → Orthopaedic Surgery Physician nationwide →
The 8 orthopaedic surgery physician records with the nearest ZIP codes
- David Downs, MDFullerton, CA 928311023101375
- Karen Evensen, MDFullerton, CA 928351750452652
- Andrew Karich, MDFullerton, CA 928351508866575
- Kiarash Khajavi, M.D.Fullerton, CA 928351265518443
- Joseph Laughlin, MDFullerton, CA 928311619080587
- Stewart Shanfield, M.D.Fullerton, CA 928351346286580
- Shahram Solhpour, MDFullerton, CA 928351548268287
- Mikel Whiting, MDFullerton, CA 928351275576795
Common questions
What is Paul Henry Kirz, M.D.'s NPI number?
Paul Henry Kirz, M.D.'s National Provider Identifier (NPI) is 1336418011, issued on Dec 24, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Paul Henry Kirz, M.D. located?
The NPPES record lists a practice address at 1063 Carmel Cir, Fullerton, CA, 92833. Phone: (714) 871-4173. Providers update this record themselves, so call before visiting.
How can I verify Paul Henry Kirz, M.D.'s license?
NPPES lists California license number G45258, 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 Paul Henry Kirz, M.D. prescribe under Medicare Part D?
In 2024, Paul Henry Kirz, M.D. had 20 Medicare Part D claims; the average among orthopaedic surgery physician prescribers was 346. 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.