Heather Lyn Gerstl, PA-C
- Medicare services, 2024
- 16
- Medicare patients, 2024
- 21
- Part D claims, 2024
- 755
- Affiliated sites
- 1
- Medical groups
- 2
- Practice address
- 43112 15th W St, Lancaster, CA 93534
- Practice phone
- Call (661) 726-2279
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Southern California Permanente Medical Group
Lancaster, California
Find Heather Gerstl's professional email, personal email and mobile number
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Heather Lyn Gerstl is a physician assistant in Lancaster, California
Heather Gerstl practices at Southern California Permanente Medical Group in Lancaster, California.
Heather Gerstl's NPI, 1558591701, was assigned on July 22, 2009. Heather Gerstl holds California license 20971.
- NPI
- 1558591701NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1850423625
- NPI enumeration date
- July 22, 2009
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (661) 726-2279
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 42
- Medical school graduation
- 2010
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Heather Lyn Gerstl practices at Southern California Permanente Medical Group in Lancaster, California
Heather Gerstl's primary practice is Southern California Permanente Medical Group, at 43112 15th W St, Lancaster, CA 93534 in Los Angeles County. The practice phone is (661) 726-2279.
- Southern California Permanente Medical Group43112 15th W St, Lancaster, CA 93534 · Los Angeles CountyPhone(661) 726-2279
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Heather Lyn Gerstl is affiliated with 2 sites of care and 2 medical groups
Heather Gerstl's primary practice is Southern California Permanente Medical Group in Lancaster, California. The medical group on file is Southern California Permanente Medical Group. Dmand AI also links Heather Gerstl to 1 more group practice or clinic and 1 medical group, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Heather Lyn Gerstl's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Heather Gerstl practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Southern California Permanente Medical Group | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Heather Lyn Gerstl is one of 11,482 physician assistants in California
Physician assistant is Heather Gerstl's primary specialty in the NPI Registry, under taxonomy code 363A00000X. Heather Gerstl is board certified in certified physician assistant by the National Commission on Certification of Physician Assistants (NCCPA). Heather Gerstl is licensed in California.
Specialties and state licenses
- Physician assistant, CaliforniaPrimary
Clinical focus
Dmand AI lists acute skin infection, lower back pain and vaginal infection among the conditions Heather Gerstl treats.
Physician assistants near Heather Gerstl
Counts of physician assistants with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Heather Lyn Gerstl billed Medicare for 16 services in 2024
CMS data shows 16 Medicare services from Heather Gerstl across 1 procedure code in 2024, all of them office visits, for 21 Medicare patients. Medicare paid $972 for them. Every service was in an office.
Heather Gerstl compared with the California median for physician assistants, 2024
- Heather Gerstl
- California median
- Medicare services
- 16vs 20492% below
- Medicare patients
- 21vs 10580% below
- Part D claims
- 524vs 2432.2 times
Medians across 7,065 physician assistants in California with Dmand AI profiles that report each measure.
Heather Gerstl's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Heather Gerstl and other physician assistants in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Heather Lyn Gerstl treated 21 Medicare patients in 2024, average age 59
CMS counts 21 Medicare patients who saw Heather Gerstl in 2024. 52% of them have high blood pressure. Their average risk score is 1.07, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Heather Gerstl's median patient age at 36, with 67% women.
Chronic conditions among Heather Gerstl's Medicare patients, 2024
- High blood pressure52%
Share of Medicare patients with each condition. A patient can have several.
Heather Gerstl's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 36
Patient panel by sex, all payers
- Women67%
- Men33%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Heather Lyn Gerstl wrote 755 Medicare Part D claims in 2024
In 2024, Heather Gerstl wrote 755 Medicare Part D claims for 414 patients. 89% of them were for generic drugs. CMS names the drug for 524 of them, across 22 drugs with 11 or more claims each, at $13,170 in total drug cost.
Heather Gerstl's Part D claims by kind of drug, 2024
- Generic674 claims89%
- Brand-name and other81 claims11%
Heather Gerstl's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Heather Gerstl's Part D claims, 2024
- Opioids12%88 of 755 claims
- Antibiotics23%173 of 755 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Heather Lyn Gerstl takes part in Medicare
Heather Gerstl accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Heather Lyn Gerstl is board certified in certified physician assistant
- Board certified in certified physician assistant
Source: Dmand AI Professional Profile Data
Sources for Heather Lyn Gerstl's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Heather Lyn Gerstl
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Heather Lyn Gerstl's NPI number?
Heather Lyn Gerstl's NPI number is 1558591701. It was assigned on July 22, 2009, and it is active in the NPI Registry.
What does Heather Lyn Gerstl specialize in?
Heather Lyn Gerstl is a physician assistant in Lancaster, California. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does Heather Lyn Gerstl practice?
Heather Gerstl practices at 43112 15th W St, Lancaster, CA 93534. Heather Gerstl's primary practice is Southern California Permanente Medical Group in Lancaster, California. Dmand AI also links Heather Gerstl to 1 group practice or clinic and 1 medical group.
What is Heather Lyn Gerstl's office phone number?
The practice phone on file for Heather Gerstl is (661) 726-2279.
What is Heather Lyn Gerstl's medical license number?
Heather Gerstl holds California license 20971.
What medical group is Heather Lyn Gerstl part of?
Heather Gerstl is linked to Southern California Permanente Medical Group. Dmand AI links Heather Gerstl to 1 more medical group.
Does Heather Lyn Gerstl accept Medicare?
Yes. CMS data shows Heather Gerstl billed Medicare for 16 services in 2024, and Heather Gerstl accepts Medicare assignment.
How many Medicare patients does Heather Lyn Gerstl see?
CMS counts 21 Medicare patients who saw Heather Gerstl in 2024, with an average age of 59.
Is Heather Lyn Gerstl board certified?
Yes. Heather Gerstl is board certified in certified physician assistant by the National Commission on Certification of Physician Assistants (NCCPA).
What services does Heather Lyn Gerstl bill to Medicare?
In 2024, Heather Gerstl's most billed Medicare services were office visit, established patient (99214).
What drugs does Heather Lyn Gerstl prescribe most?
In 2024 Medicare Part D data, Heather Gerstl's most prescribed drugs by claims were Prednisone, Ipratropium Bromide and Cephalexin.
How long has Heather Lyn Gerstl been practicing?
Heather Gerstl graduated from medical school in 2010, 16 years ago.
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