Alan Cosmo Haun, PA-C
Physician Assistant · Ridgecrest, CA
Alan Cosmo Haun, PA-C is a physician assistant with a practice address in Ridgecrest, California, and NPI 1316425846, issued on Aug 6, 2018. Check the license (California 54539, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Alan Cosmo Haun
- Credential
- PA-C
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- 54539 CA
Self-reported in NPPES; status is on the state search - Practice location
- 900 N Heritage Dr, Ridgecrest, CA 93555
- Phone
- (760) 446-4571
- Enumerated
- Aug 6, 2018
- Record last updated
- Aug 6, 2018 (not updated in 8 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20181107001902); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 14,451 in California → Look up another NPI →
Also registered at 900 N Heritage Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Alan Cosmo Haun in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 54539Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
53% fewer Medicare Part D claims than the average physician assistant in 2024
394 Medicare Part D claims for 269 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D.
Most prescribed
- Cephalexin40 claims
- Amoxicillin-Clavulanate Potass34 claims
- Prednisone31 claims
- Sulfamethoxazole-Trimethoprim26 claims
- Azithromycin21 claims
- Fluticasone Propionate21 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.
One hospital affiliation
- Ridgecrest Regional HospitalRidgecrest, CA · Critical Access Hospitals
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov).
Alan Cosmo Haun among 14,451 physician assistant records in California
Alan Cosmo Haun, PA-C is one of 14,451 physician assistant records with a practice address in California. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 52% of them.
- NPI issued2018 · 52% of these records are older, 44% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 50% of these records are
- Graduated2015 · median 2018 among the 7,214 with a school on file
- Record last updated2018 · 40% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
12 physician assistant records list a practice address in Ridgecrest
They are 12 of the 485 NPPES records with a practice address in Ridgecrest, and 14,451 physician assistant records in California.
All 14,451 in California → Every provider in Ridgecrest → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Joshua Broad, P.A.Ridgecrest, CA 935551134382013
- Jeffrey Chapman, PA-CRidgecrest, CA 935551396362422
- Jennifer Cordovi TiradoRidgecrest, CA 935551902489586
- Kelly Doty, PARidgecrest, CA 935551003867474
- Kayla Gomez, PARidgecrest, CA 935551548826290
- David Leos, PHYSICIAN ASSISTANTChina Lake, CA 935551417208224
- Carolyn Lyon, PARidgecrest, CA 935551740779073
- Beth Osweiler, PA-CRidgecrest, CA 935551427458223
Common questions
What is Alan Cosmo Haun, PA-C's NPI number?
Alan Cosmo Haun, PA-C's National Provider Identifier (NPI) is 1316425846, issued on Aug 6, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Alan Cosmo Haun, PA-C located?
The NPPES record lists a practice address at 900 N Heritage Dr, Ridgecrest, CA, 93555. Phone: (760) 446-4571. Providers update this record themselves, so call before visiting.
How can I verify Alan Cosmo Haun, PA-C's license?
NPPES lists California license number 54539, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Alan Cosmo Haun, PA-C prescribe under Medicare Part D?
In 2024, Alan Cosmo Haun, PA-C had 394 Medicare Part D claims for 269 beneficiaries; the average among physician assistant prescribers was 830. 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.