Ashley S. Peterson, PA-C
- Medicare patients, 2024
- 30
- Part D claims, 2024
- 191
- Hospital affiliations
- 1
- Industry payments
- $446
- Medical group
- 1
- Practice address
- 450 Stanyan St, San Francisco, CA 94117
- Practice phone
- Call (415) 353-4739
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
UCSF St Mary's Hospital
San Francisco, California
Find Ashley Peterson's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Ashley S. Peterson is a physician assistant in San Francisco, California
Ashley Peterson practices at UCSF St Mary's Hospital in San Francisco, California.
Ashley Peterson's NPI, 1104455773, was assigned on April 6, 2020. Ashley Peterson holds California license 59015.
- NPI
- 1104455773NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3971910225
- NPI enumeration date
- April 6, 2020
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (415) 353-4739
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 32
- Medical school graduation
- 2020
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Ashley S. Peterson practices at UCSF St Mary's Hospital in San Francisco, California
Ashley Peterson's primary practice is UCSF St Mary's Hospital, at 450 Stanyan St, San Francisco, CA 94117 in San Francisco County. The practice phone is (415) 353-4739.
- UCSF St Mary's Hospital450 Stanyan St, San Francisco, CA 94117 · San Francisco CountyPhone(415) 353-4739
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Ashley S. Peterson is affiliated with 2 sites of care and 1 medical group
Ashley Peterson's primary practice is UCSF St Mary's Hospital in San Francisco, California. Ashley Peterson is also affiliated with Mills-Peninsula Medical Center. The medical group on file is Palo Alto Foundation Medical Group.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Ashley S. Peterson's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Ashley Peterson practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| UCSF St Mary's Hospital | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Ashley S. Peterson is one of 11,482 physician assistants in California
Physician assistant is Ashley Peterson's primary specialty in the NPI Registry, under taxonomy code 363A00000X. Ashley Peterson is licensed in California.
Specialties and state licenses
- Physician assistant, CaliforniaPrimary
Physician assistants near Ashley Peterson
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
Ashley S. Peterson treated 30 Medicare patients in 2024, average age 75
CMS counts 30 Medicare patients who saw Ashley Peterson in 2024. The largest group is 75 to 84, with 15 patients. 73% of them have high blood pressure, and 73% have high cholesterol. Their average risk score is 0.82, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Ashley Peterson's median patient age at 56, with 42% women.
Ashley Peterson's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Chronic conditions among Ashley Peterson's Medicare patients, 2024
- High blood pressure73%
- High cholesterol73%
- Arthritis70%
Share of Medicare patients with each condition. A patient can have several.
Ashley Peterson's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 56
Patient panel by sex, all payers
- Women42%
- Men51%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Ashley S. Peterson wrote 191 Medicare Part D claims in 2024
In 2024, Ashley Peterson wrote 191 Medicare Part D claims for 74 patients. 94% of them were for generic drugs. CMS names the drug for 136 of them, across 6 drugs with 11 or more claims each, at $4,269 in total drug cost.
Ashley Peterson's Part D claims by kind of drug, 2024
- Generic180 claims94%
- Brand-name11 claims6%
Ashley Peterson'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 Ashley Peterson's Part D claims, 2024
- Opioids17%33 of 191 claims
- Antibiotics25%47 of 191 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 Ashley S. Peterson takes part in Medicare
Ashley Peterson 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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Ashley S. Peterson received $446 in industry payments from 2024 to 2025
CMS Open Payments shows 7 general payments to Ashley Peterson from 5 drug and device companies from 2024 to 2025. Food and beverage make up the largest share, 73% of the total. Madrigal Pharmaceuticals paid the most, $130.
General payments to Ashley Peterson by program year, 2024 to 2025
General payments to Ashley Peterson by kind, 2024 to 2025
- Food and beverage$32373%
- Education$12327%
Companies that paid Ashley Peterson the most, 2024 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Ashley S. Peterson'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 DataDmand AI Org Hierarchy Data |
| 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) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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 Ashley S. Peterson
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Ashley S. Peterson's NPI number?
Ashley S. Peterson's NPI number is 1104455773. It was assigned on April 6, 2020, and it is active in the NPI Registry.
What does Ashley S. Peterson specialize in?
Ashley S. Peterson is a physician assistant in San Francisco, California. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does Ashley S. Peterson practice?
Ashley Peterson practices at 450 Stanyan St, San Francisco, CA 94117. Ashley Peterson's primary practice is UCSF St Mary's Hospital in San Francisco, California.
What is Ashley S. Peterson's office phone number?
The practice phone on file for Ashley Peterson is (415) 353-4739.
What is Ashley S. Peterson's medical license number?
Ashley Peterson holds California license 59015.
Which hospitals is Ashley S. Peterson affiliated with?
Ashley Peterson is affiliated with Mills-Peninsula Medical Center.
What medical group is Ashley S. Peterson part of?
Ashley Peterson is linked to Palo Alto Foundation Medical Group.
Does Ashley S. Peterson accept Medicare?
Yes. CMS lists Ashley Peterson as accepting Medicare assignment.
How many Medicare patients does Ashley S. Peterson see?
CMS counts 30 Medicare patients who saw Ashley Peterson in 2024, with an average age of 75.
What drugs does Ashley S. Peterson prescribe most?
In 2024 Medicare Part D data, Ashley Peterson's most prescribed drugs by claims were Amoxicillin, Celecoxib and Lidocaine.
Has Ashley S. Peterson received payments from drug or device companies?
CMS Open Payments shows $446 in general payments to Ashley Peterson from 5 companies from 2024 to 2025. The largest total came from Madrigal Pharmaceuticals.
How long has Ashley S. Peterson been practicing?
Ashley Peterson graduated from medical school in 2020, 6 years ago.
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