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PETER SAYRE FRIEND M.D.
NPI 1609825256
Internal Medicine - Nephrology in La Jolla, CA

Active since May 10, 2006PECOS Enrolled
9850 GENESEE AVE, SUITE 420, LA JOLLA, CA 92037(858) 453-9460(858) 453-6683 Get Directions Write a Review

NPPES record last updated: March 7, 2016. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Peter Sayre Friend M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

PETER SAYRE FRIEND M.D. (NPI 1609825256) is an individual nephrology provider in La Jolla, California, licensed in California (G22253) and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1609825256
Entity TypeIndividualMale
Primary Taxonomy207RN0300X
Provider Legal NamePETER SAYRE FRIENDCredential: M.D.
Location Address9850 GENESEE AVE, SUITE 420La Jolla, CA 92037-1224
Mailing Address6480 Dwane AveSan Diego, CA 92120-3925 · (619) 698-8971 · Fax (619) 466-3375
Phone(858) 453-9460
Fax(858) 453-6683
Sole ProprietorYes
Enumeration DateMay 10, 2006
Last NPPES UpdateMarch 7, 2016
✔ NPI 1609825256 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · NephrologyAllopathic & Osteopathic Physicians
Taxonomy Code207RN0300X
License✔ Licensed in CA · G22253
Definition
An internist who treats disorders of the kidney, high blood pressure, fluid and mineral balance and dialysis of body wastes when the kidneys do not function. This specialist consults with surgeons about kidney transplantation.
9850 GENESEE AVE, La Jolla, CA 92037
Open in Google Maps ↗

Other Identifiers 3

Medicare UPINA41521CA
Medicare ID-Type UnspecifiedG22253CA
Medicaid00G222530CA

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Peter Sayre Friend M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

2

Medicare enrollment records show Peter Friend reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Scripps Health
Same address
General Acute Care Hospital
9888 GENESEE AVE
La Jolla, CA 92037
  • Reassigned Medicare billing, California enrollment
  • 1,598 clinicians in this Medicare group
NPI 1841277704 (858) 457-4123
Emergency And Acute Care Medical Corporation
7.2 mi
Emergency Medicine
7901 FROST ST
San Diego, CA 92123
  • Reassigned Medicare billing, California enrollment
  • 1,437 clinicians in this Medicare group
NPI 1437103942 (858) 939-3400

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92037 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$140.22 typical visit price
range $62.10 – $184.71
Typical copayment $35.05 (range $15.52 – $46.17)
Most-billed visit code 99204
Established Patient
$108.42 typical visit price
range $20.62 – $151.42
Typical copayment $27.10 (range $5.15 – $37.85)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

SUHAIR S. ERIKAT MFT
Marriage & Family Therapist
9850 GENESEE AVE, SUITE 970
LA JOLLA, CA 92037
San Diego County (858) 558-2731
DR. MARK C ADRIAN M.D.
Internal Medicine
9850 GENESEE AVE, SUITE 355
LA JOLLA, CA 92037
San Diego County (858) 202-0011
RICHARD A.K. CHAFFOO, A PROFESSIONAL CORPORATION
Plastic Surgery
9850 GENESEE AVE, SUITE 330
LA JOLLA, CA 92037
San Diego County (858) 623-6333
MRS. KATHLEEN DYKES YOUNG MS
Clinical Exercise Physiologist
9850 GENESEE AVE, SUITE 730
LA JOLLA, CA 92037
San Diego County (858) 847-5064
YEVHENIYA KHROBUST FNP
Nurse Practitioner (Family)
9850 GENESEE AVE
LA JOLLA, CA 92037
San Diego County (858) 554-9100
DR. PAMILA K. BRAR M.D.
Internal Medicine
9850 GENESEE AVE, STE 570
LA JOLLA, CA 92037
San Diego County (858) 200-3007
PRIMA PRIMARY MEDICAL ASSOCIATION, INC
Internal Medicine
9850 GENESEE AVE, SUITE 355
LA JOLLA, CA 92037
San Diego County (858) 202-0011
MAHMOOD MAHDAVI M.D.
Otolaryngology
9850 GENESEE AVE, STE 710
LA JOLLA, CA 92037
San Diego County (858) 458-9955

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Peter Friend's NPI number?

The NPI number for Peter Friend is 1609825256. It was assigned to this individual provider in the NPPES registry on May 10, 2006.

Where is Peter Friend located?

Peter Friend practices at 9850 Genesee Ave Suite 420, La Jolla, CA 92037. The listed phone number is (858) 453-9460.

What is Peter Friend's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.

Is Peter Friend enrolled in Medicare?

Yes. Peter Friend is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Peter Friend's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Peter Friend reassigns Medicare benefits to 2 organizations: Scripps Health (La Jolla, CA) and Emergency And Acute Care Medical Corporation (San Diego, CA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Peter Friend's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Peter Friend was last updated on March 7, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.