Heather Hirsh, PA
Physician Assistant · Simi Valley, CA
Heather Hirsh, PA is a physician assistant with a practice address in Simi Valley, California, and NPI 1245402130, issued on Mar 31, 2008. Check the license (California 19692, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Heather Hirsh
- Credential
- PA
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- 19692 CA
Self-reported in NPPES; status is on the state search - Practice location
- 158 Macaw LN, Simi Valley, CA 93065
- Phone
- (805) 584-1930
- Enumerated
- Mar 31, 2008
- Record last updated
- Jul 27, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (805) 584-1932
- Entity
- Type 1 · individual
Also registered at 158 Macaw LN
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Heather Hirsh in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 19692Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
57% fewer Medicare Part D claims than the average physician assistant in 2024
358 Medicare Part D claims for 262 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 3% of claims. 33 claims were for opioids.
Most prescribed
- Cephalexin56 claims
- Ibuprofen35 claims
- Nitrofurantoin Mono-Macro33 claims
- Sulfamethoxazole-Trimethoprim22 claims
- Amoxicillin20 claims
- Methylprednisolone19 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): 94.6 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).
35 physician assistant records list a practice address in Simi Valley
They are 35 of the 1,397 NPPES records with a practice address in Simi Valley, and 14,451 physician assistant records in California.
All 35 in Simi Valley → All 14,451 in California → Every provider in Simi Valley →
Other physician assistant records in California
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- Danny Abad, PAOrange, CA1477158673
- Lea Dominique Abadies, PATustin, CA1124754254
- Rea Elizabeth Abaniel, P.A.-CSeal Beach, CA1396173621
- Ramina Abbasi, PA-CSignal Hill, CA1093448300
- Ariel Abbott, PA-CStockton, CA1780334342
- Barrie Abbott, PA-CAnza, CA1861602575
- Elizabeth Abbott, PA-CSan Diego, CA1437540762
- Terri Abbott, P.A.La Jolla, CA1811165566
- Angela Abboud, MMS, PA-CSanta Rosa, CA1114399334
Common questions
What is Heather Hirsh, PA's NPI number?
Heather Hirsh, PA's National Provider Identifier (NPI) is 1245402130, issued on Mar 31, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Heather Hirsh, PA located?
The NPPES record lists a practice address at 158 Macaw LN, Simi Valley, CA, 93065. Phone: (805) 584-1930. Providers update this record themselves, so call before visiting.
How can I verify Heather Hirsh, PA's license?
NPPES lists California license number 19692, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Heather Hirsh, PA prescribe under Medicare Part D?
In 2024, Heather Hirsh, PA had 358 Medicare Part D claims for 262 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions only.
What is Heather Hirsh, PA's MIPS final score?
The 2023 MIPS final score is 94.6 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.