Heather Hirsh, PA
NPI 1245402130 · Physician Assistant · Simi Valley, CA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Heather Hirsh, PA is a Physician Assistant provider in Simi Valley, CA (NPI 1245402130).
Provider details
- NPI number
- 1245402130
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA
- Sex
- Female
- Sole proprietor
- No
- License
- 19692 (CA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
18 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
97 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Emergency Department Visit With Moderate Level of Medical Decision Making99284 | 59 | $109 |
| Emergency Department Visit With High Level of Medical Decision Making99285 | 21 | $157 |
| X-Ray of Chest, 1 View71045 | 17 | $8 |
Typical Medicare-allowed amounts for these services range $8–$157 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 12 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Cephalexin | 56 | 56 |
| Ibuprofen | 35 | 35 |
| Nitrofurantoin Monohyd/M-Crystbrand: Nitrofurantoin Mono-Macro | 33 | 32 |
| Sulfamethoxazole/Trimethoprimbrand: Sulfamethoxazole-Trimethoprim | 22 | 22 |
| Amoxicillin | 20 | 20 |
| Methylprednisolone | 19 | 19 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 18 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2008-03-31
- Last updated
- 2012-07-27
Frequently asked questions
- What is Heather Hirsh's NPI number?
- Heather Hirsh's National Provider Identifier (NPI) is 1245402130, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Heather Hirsh's specialty?
- Heather Hirsh is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Heather Hirsh located?
- Heather Hirsh's practice location on file with NPPES is 158 Macaw Ln, Simi Valley, CA 93065-3152.
- What is Heather Hirsh's phone number?
- The practice phone number listed in the NPPES registry for Heather Hirsh is (805) 584-1930.
- Does Heather Hirsh accept Medicare?
- Heather Hirsh is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Heather Hirsh's NPI active?
- Yes — Heather Hirsh's NPI (1245402130) is active in the NPPES registry as of the last update on 2012-07-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.