Dr. Peter Fay, MD
- Medicare services, 2024
- 38
- Medicare patients, 2024
- 52
- Part D claims, 2024
- 3,058
- MIPS score, 2024
- 61
- Hospital affiliations
- 2
- Practice address
- 300 Pasteur Drive, Stanford, CA 94305
- Practice phone
- Call (650) 723-4000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Fay'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.
Dr. Peter Fay is an internist in Stanford, California
Dr. Fay practices at Stanford Hospital at 300 Pasteur Drive in Stanford, California, part of Stanford University.
Dr. Fay's NPI, 1154384337, was assigned on April 10, 2006. Dr. Fay graduated from UC Davis School of Medicine in 1998. Dr. Fay holds California license A70138.
- NPI
- 1154384337NPI Registry (opens in a new tab)
- NPI enumeration date
- April 10, 2006
- NPI status
- Active
- Practice phone
- (650) 723-4000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 54
- Medical school graduation
- 1998
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Peter Fay practices at Stanford Hospital at 300 Pasteur Drive in Stanford, California
Dr. Fay's primary practice is Stanford Hospital at 300 Pasteur Drive, at 300 Pasteur Drive, Stanford, CA 94305 in Santa Clara County. The practice phone is (650) 723-4000.
- Stanford Hospital at 300 Pasteur Drive300 Pasteur Drive, Stanford, CA 94305 · Santa Clara CountyPhone(650) 723-4000
Source: Dmand AI Affiliation Data
Dr. Peter Fay is affiliated with 3 sites of care and 1 medical group
Dr. Fay's primary practice is Stanford Hospital at 300 Pasteur Drive in Stanford, California, part of Stanford University. The medical group on file is County of Santa Clara Behavioral Health Services, Las Plumas Behavioral Health Clinic. Dmand AI also links Dr. Fay to 1 more hospital and 1 community health center, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Peter Fay's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Fay practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Stanford Hospital at 300 Pasteur Drive | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Stanford University and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Peter Fay is one of 16,751 internists in California
Internal medicine is Dr. Fay's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Fay is board certified in internal medicine by the American Board of Internal Medicine. Dr. Fay is licensed in California.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
Clinical focus
Dmand AI lists acute gastroduodenitis, aneurysm, arthritis, atrial fibrillation and flutter, chronic diabetes, chronic hypertension, chronic skin ulcer and coronary artery disease among the conditions Dr. Fay treats.
Internists near Dr. Fay
Counts of internists 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
Dr. Peter Fay billed Medicare for 38 services in 2024
CMS data shows 38 Medicare services from Dr. Fay across 1 procedure code in 2024, for 52 Medicare patients. Medicare paid $122 for them. Every service was in an office.
Dr. Fay's Medicare services by type, 2019 to 2024
- 2019
- 2024
- Lab and pathology
- 2019: 02024: 38
- Office and hospital visits
- 2019: 142024: 0100%
Dr. Fay compared with the California median for internists, 2024
- Dr. Fay
- California median
- Medicare services
- 38vs 36189% below
- Medicare patients
- 52vs 15166% below
- Part D claims
- 2,476vs 4215.9 times
Medians across 15,815 internists in California with Dmand AI profiles that report each measure.
Dr. Fay'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.
Need commercial claims for Dr. Fay?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Fay and other internists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Peter Fay treated 52 Medicare patients in 2024, average age 70
CMS counts 52 Medicare patients who saw Dr. Fay in 2024. The largest group is 65 to 74, with 34 patients. 75% of them have diabetes, and 75% have high blood pressure. 77% are also on Medicaid. Their average risk score is 1.47, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Fay's median patient age at 65, with 36% women.
Dr. Fay's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Fay's Medicare patients by sex, 2024
- Women2956%
- Men2344%
Chronic conditions among Dr. Fay's Medicare patients, 2024
- Diabetes75%
- High blood pressure75%
- High cholesterol75%
- Arthritis23%
- Chronic kidney disease23%
Share of Medicare patients with each condition. A patient can have several.
Dr. Fay's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 65
Patient panel by sex, all payers
- Women36%
- Men64%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Peter Fay wrote 3,058 Medicare Part D claims in 2024
In 2024, Dr. Fay wrote 3,058 Medicare Part D claims for 271 patients. 90% of them were for generic drugs. CMS names the drug for 2,476 of them, across 55 drugs with 11 or more claims each, at $134,698 in total drug cost. In 2023, CMS named 2,796 claims across 62 drugs.
Dr. Fay's Part D claims by kind of drug, 2024
- Generic2,750 claims90%
- Brand-name and other308 claims10%
Dr. Fay'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 Dr. Fay's Part D claims, 2024
- Opioids2%63 of 3,058 claims
- Antipsychotics, patients 65 and over1%17 of 3,058 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 2,7962024: 2,47611%
Drugs named by CMS: 55 in 2024, 62 in 2023.
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
Dr. Peter Fay scored 61 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 61 out of 100 for Dr. Fay for performance year 2024, reported as part of a group.
Dr. Fay's MIPS scores, performance year 2024
- 61of 100Final score
- 59.4of 100Quality
- 0of 100Promoting Interoperability
- 40of 100Improvement Activities
- 71of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Source: Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. Peter Fay received $24 in industry payments in 2023
CMS Open Payments shows 1 general payment to Dr. Fay from 1 drug or device company in 2023. Food and beverage make up the largest share, 100% of the total. Piramal Critical Care paid the most, $24.
Companies that paid Dr. Fay the most, 2023 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Peter Fay has 2 awards and honors on record
Dmand AI lists 2 awards for Dr. Fay, most recently Outstanding Community Clinic Preceptor, Preclinical Education in 2019.
Awards and honors for Dr. Fay
- 2019
- Outstanding Community Clinic Preceptor, Preclinical Education
- 2009
- Exceptional Preceptor, Ambulatory Medicine Clerkship
Source: Dmand AI Professional Profile Data
Dr. Peter Fay graduated from UC Davis School of Medicine
Dr. Fay graduated from UC Davis School of Medicine in 1998. Dr. Fay is a member of ACP and Santa Clara County Medical Association.
- Medical school
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Dr. Peter Fay accepts plans from 8 insurance carriers
Dr. Fay is in network with 8 carriers, including Elevance, Aetna and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 6. Check the plan with the practice before a visit.
- Elevance
- Aetna
- Blue Cross Blue Shield of Michigan
- Blue Cross Blue Shield of Massachusetts
- HCSC
- Regence Health Plans
- United Healthcare
- Blue Cross and Blue Shield of Kansas City
Plan types Dr. Fay accepts, by number of carriers
- PPO6
- Medicare5
- HMO4
- POS4
- EPO2
Source: Dmand AI Insurance Network Data
Sources for Dr. Peter Fay'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 | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy 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 | Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network 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 Dr. Peter Fay
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Peter Fay's NPI number?
Dr. Peter Fay's NPI number is 1154384337. It was assigned on April 10, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Peter Fay?
Dr. Peter Fay is an internist in Stanford, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Peter Fay practice?
Dr. Fay practices at 300 Pasteur Drive, Stanford, CA 94305. Dr. Fay's primary practice is Stanford Hospital at 300 Pasteur Drive in Stanford, California, part of Stanford University. Dmand AI also links Dr. Fay to 1 hospital and 1 community health center.
What is Dr. Peter Fay's office phone number?
The practice phone on file for Dr. Fay is (650) 723-4000.
What is Dr. Peter Fay's medical license number?
Dr. Fay holds California license A70138.
Which hospitals is Dr. Peter Fay affiliated with?
Dr. Fay practices at Stanford Hospital at 300 Pasteur Drive in Stanford, California. Dmand AI links Dr. Fay to 1 more hospital.
What medical group is Dr. Peter Fay part of?
Dr. Fay is linked to County of Santa Clara Behavioral Health Services, Las Plumas Behavioral Health Clinic.
Does Dr. Peter Fay accept Medicare?
Yes. CMS data shows Dr. Fay billed Medicare for 38 services in 2024.
What is Dr. Peter Fay's MIPS score?
Dr. Fay's MIPS final score for performance year 2024 is 61 out of 100, reported as part of a group.
How many Medicare patients does Dr. Peter Fay see?
CMS counts 52 Medicare patients who saw Dr. Fay in 2024, with an average age of 70.
Show 7 more questionsShow fewer questions
Is Dr. Peter Fay board certified?
Yes. Dr. Fay is board certified in internal medicine by the American Board of Internal Medicine.
What services does Dr. Peter Fay bill to Medicare?
In 2024, Dr. Fay's most billed Medicare services were lab and pathology test (82962).
Where did Dr. Peter Fay go to medical school?
Dr. Fay graduated from UC Davis School of Medicine in 1998.
What drugs does Dr. Peter Fay prescribe most?
In 2024 Medicare Part D data, Dr. Fay's most prescribed drugs by claims were Atorvastatin Calcium, Amlodipine Besylate and Metformin HCl.
Has Dr. Peter Fay received payments from drug or device companies?
CMS Open Payments shows $24 in general payments to Dr. Fay from 1 company from 2023 to 2023. The largest total came from Piramal Critical Care.
How long has Dr. Peter Fay been practicing?
Dr. Fay graduated from medical school in 1998, 28 years ago.
What insurance does Dr. Peter Fay accept?
Dr. Fay is in network with 8 carriers, including Elevance, Aetna and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 6. Check the plan with the practice before a visit.
Selling to internal medicine practices?
See internists in California by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card