Transplant Proc
B-LymphocytesChromosomes, Human, 6-12 and XHLA Antigens
Dr. Peter Sayre Friend, MD
NPI1609825256
- Medicare services, 2022
- 144
- Part D claims, 2022
- 57
- Publications
- 14
- Industry payments
- $2,139
- Affiliated sites
- 2
- Practice address
- 150 N Jackson Ave, San Jose, CA 95116
- Practice phone
- Call (650) 888-1917
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Surekha S Vetsa MD
San Jose, California
Find Dr. Friend'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 Sayre Friend is a nephrologist in San Jose, California
Dr. Friend practices at Surekha S Vetsa MD in San Jose, California.
Dr. Friend's NPI, 1609825256, was assigned on May 10, 2006. Dr. Friend graduated from Perelman School of Medicine - Philadelphia in 1969. Dr. Friend holds California license G22253.
NPI and contact details
- NPI
- 1609825256NPI Registry (opens in a new tab)
- NPI enumeration date
- May 10, 2006
- NPI status
- Active
- Practice phone
- (650) 888-1917
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 83
- Medical school graduation
- 1969
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. Peter Sayre Friend practices at Surekha S Vetsa MD in San Jose, California
Dr. Friend's primary practice is Surekha S Vetsa MD, at 150 N Jackson Ave, San Jose, CA 95116 in Santa Clara County. The practice phone is (650) 888-1917.
- Surekha S Vetsa MD150 N Jackson Ave, San Jose, CA 95116 · Santa Clara CountyPhone(650) 888-1917
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Peter Sayre Friend is affiliated with 3 sites of care and 2 medical groups
Dr. Friend's primary practice is Surekha S Vetsa MD in San Jose, California. The medical group on file is Scripps Clinic Medical Group. Dmand AI also links Dr. Friend to 2 more group practices and clinics and 1 medical group, each named with a free account.
Surekha S Vetsa MDPrimary
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Peter Sayre Friend's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Friend practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Surekha S Vetsa MD | Available with a free account |
| +2 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Peter Sayre Friend is one of 1,401 nephrologists in California
Nephrology is Dr. Friend's primary specialty in the NPI Registry, under taxonomy code 207RN0300X. Dr. Friend is board certified in internal medicine by the American Board of Internal Medicine. Dmand AI has Dr. Friend's licenses on file in 2 states: California and Minnesota.
Specialties and state licenses
- Nephrology, CaliforniaPrimary
- Minnesota license
Nephrologists near Dr. Friend
Counts of nephrologists 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 Sayre Friend billed Medicare for 144 services in 2022
CMS data shows 144 Medicare services from Dr. Friend across 3 procedure codes in 2022. Medicare paid $26,066 for them. Every service was in an office.
Medicare services, 2022144
Paid by Medicare$26,066
Procedure codes3
Dr. Friend's Medicare services by type, 2021 to 2022
- 2021
- 2022
- Tests and treatments
- 2021: 2452022: 12947%
- Office and hospital visits
- 2021: 542022: 1572%
Dr. Friend compared with the California median for nephrologists, 2022
- Dr. Friend
- California median
- Medicare services
- 144vs 1,08487% below
- Part D claims
- 57vs 95594% below
Medians across 1,355 nephrologists in California with Dmand AI profiles that report each measure.
Dr. Friend's most billed Medicare procedure codes, 2022
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. Friend?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Friend and other nephrologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Peter Sayre Friend's patients have a median age of 66
Across all payers, Dmand AI patient panel data puts Dr. Friend's median patient age at 66, with 0% women.
Dr. Friend's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 66
Patient panel by sex, all payers
- Women0%
- Men100%
Source: Dmand AI Patient Panel Data
Dr. Peter Sayre Friend wrote 57 Medicare Part D claims in 2022
In 2022, Dr. Friend wrote 57 Medicare Part D claims. Every claim was for a generic drug. They cover 2 drugs, with $34,811 in total drug cost. In 2021, CMS named 161 claims across 6 drugs.
Part D claims, 202257
Drugs named by CMS2
Total drug cost$34,811
Dr. Friend's most prescribed drugs by claims, 2022
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2021 to 2022
- 2021
- 2022
- Claims for drugs CMS names
- 2021: 1612022: 5765%
Drugs named by CMS: 2 in 2022, 6 in 2021.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Dr. Peter Sayre Friend has 14 publications on record
Dmand AI links 14 papers to Dr. Friend. The most frequent topics are B-Lymphocytes, Glomerulonephritis and Complement C2.
Papers14
Topics Dr. Friend writes about most
- B-Lymphocytes
- Glomerulonephritis
- Complement C2
- HLA Antigens
- Chromosomes, Human, 6-12 and X
- DNA
- Kidney
- Lymphocyte Culture Test, Mixed
Recent publications by Dr. Friend
Tissue Antigens
Blood ProteinsB-LymphocytesChromosomes, Human, 6-12 and X
Cell Immunol
Antibodies, Anti-IdiotypicAntibody FormationAntibody-Producing Cells
Complement C1Complement C2Complement C3
See who Dr. Friend researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Friend works with, so you can find a warm path to the right nephrologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Peter Sayre Friend received $2,139 in industry payments from 2016 to 2022
CMS Open Payments shows 104 general payments to Dr. Friend from 33 drug and device companies from 2016 to 2022. Food and beverage make up the largest share, 100% of the total. Amgen Inc. paid the most, $465.
General payments to Dr. Friend by program year, 2016 to 2022
Companies that paid Dr. Friend the most, 2016 to 2022
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Peter Sayre Friend has 3 awards and honors on record
Dmand AI lists 3 awards for Dr. Friend, most recently CMS Stage 1 EHR in 2013.
Awards and honors for Dr. Friend
- 2013
- CMS Stage 1 EHR
- Undated
- Checkbook Top Doc
- Whos Who
Source: Dmand AI Professional Profile Data
Dr. Peter Sayre Friend graduated from Perelman School of Medicine - Philadelphia
Dr. Friend graduated from Perelman School of Medicine - Philadelphia in 1969.
- Medical school
- Board certified in internal medicine
- Board certified in nephrology
Source: Dmand AI Professional Profile Data
Dr. Peter Sayre Friend accepts plans from 3 insurance carriers
Dr. Friend is in network with 3 carriers, including Elevance, Blue Cross Blue Shield of Massachusetts and HCSC. Medicare plans come from the most carriers, 3. Check the plan with the practice before a visit.
- Elevance
- Blue Cross Blue Shield of Massachusetts
- HCSC
Plan types Dr. Friend accepts, by number of carriers
- Medicare3
- PPO3
- EPO1
- HMO1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Peter Sayre Friend'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 Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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 Sayre Friend
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 Sayre Friend's NPI number?
Dr. Peter Sayre Friend's NPI number is 1609825256. It was assigned on May 10, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Peter Sayre Friend?
Dr. Peter Sayre Friend is a nephrologist in San Jose, California. The primary specialty in the NPI Registry is Nephrology Physician (taxonomy code 207RN0300X).
Where does Dr. Peter Sayre Friend practice?
Dr. Friend practices at 150 N Jackson Ave, San Jose, CA 95116. Dr. Friend's primary practice is Surekha S Vetsa MD in San Jose, California. Dmand AI also links Dr. Friend to 2 group practices and clinics and 1 medical group.
What is Dr. Peter Sayre Friend's office phone number?
The practice phone on file for Dr. Friend is (650) 888-1917.
What is Dr. Peter Sayre Friend's medical license number?
Dr. Friend holds California license G22253, one of the licenses on file in 2 states.
Which states has Dr. Peter Sayre Friend been licensed in?
Dmand AI has state licenses on file for Dr. Friend in California (1972 to 2026) and Minnesota (1971 to 2025).
What medical group is Dr. Peter Sayre Friend part of?
Dr. Friend is linked to Scripps Clinic Medical Group. Dmand AI links Dr. Friend to 1 more medical group.
Does Dr. Peter Sayre Friend accept Medicare?
Yes. CMS data shows Dr. Friend billed Medicare for 144 services in 2022.
Is Dr. Peter Sayre Friend board certified?
Yes. Dr. Friend is board certified in internal medicine by the American Board of Internal Medicine.
What services does Dr. Peter Sayre Friend bill to Medicare?
In 2022, Dr. Friend's most billed Medicare services were dialysis (90962), dialysis (90961) and office visit, established patient (99214).
Show 6 more questionsShow fewer questions
Where did Dr. Peter Sayre Friend go to medical school?
Dr. Friend graduated from Perelman School of Medicine - Philadelphia in 1969.
What drugs does Dr. Peter Sayre Friend prescribe most?
In 2022 Medicare Part D data, Dr. Friend's most prescribed drugs by claims were Sevelamer Carbonate and Amlodipine Besylate.
Has Dr. Peter Sayre Friend received payments from drug or device companies?
CMS Open Payments shows $2,139 in general payments to Dr. Friend from 33 companies from 2016 to 2022. The largest total came from Amgen Inc.
How long has Dr. Peter Sayre Friend been practicing?
Dr. Friend graduated from medical school in 1969, 57 years ago.
Does Dr. Peter Sayre Friend do research?
Dmand AI links 14 publications to Dr. Friend.
What insurance does Dr. Peter Sayre Friend accept?
Dr. Friend is in network with 3 carriers, including Elevance, Blue Cross Blue Shield of Massachusetts and HCSC. Medicare plans come from the most carriers, 3. Check the plan with the practice before a visit.
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