1. Home
  2. Directory
  3. California
  4. San Diego
  5. Internal Medicine
  6. NPI Profile

MARYAM SHAHAMFAR MD
NPI 1194354944
Internal Medicine - Nephrology in San Diego, CA

Active since April 03, 2020PECOS EnrolledAccepts Medicare Assignment
8885 RIO SAN DIEGO DR STE 212, SAN DIEGO, CA 92108(619) 299-2350(619) 297-8379 Get Directions Write a Review

NPPES record last updated: June 15, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Jan 16, 2026, Nov 12, 2025, Jun 9, 2025 and 2 more (5 updates tracked since 2020).

About Maryam Shahamfar Md NPPES

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

MARYAM SHAHAMFAR MD (NPI 1194354944) is an individual nephrology provider in San Diego, California, licensed in California (A183299) and active in the NPI registry since April 2020. She is enrolled in Medicare PECOS and is a graduate of Other (2017).

NPPES Registry Identity

NPI1194354944
Entity TypeIndividualFemale
Primary Taxonomy207RN0300X
Provider Legal NameMARYAM SHAHAMFARCredential: MD
Location Address8885 RIO SAN DIEGO DR STE 212San Diego, CA 92108-1626
Mailing Address9373 Hazard Way Ste 200San Diego, CA 92123-1226 · (858) 810-8000 · Fax (858) 268-1911
Phone(619) 299-2350
Fax(619) 297-8379
Sole ProprietorNo
Medical School CMSOtherGraduated 2017
Enumeration DateApril 3, 2020
Last NPPES UpdateJune 15, 20265 updates tracked since enumeration
NPPES CertifiedJune 15, 2026
✔ NPI 1194354944 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 · A183299
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.
8885 RIO SAN DIEGO DR STE 212, San Diego, CA 92108
Open in Google Maps ↗

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Maryam Shahamfar Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID1153837869
PECOS Enrollment IDI20250721001435
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 Maryam Shahamfar reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Family Health Centers Of San Diego Inc
2.1 mi
Federally Qualified Health Center (FQHC)
4094 4TH AVE
San Diego, CA 92103
  • Reassigned Medicare billing, California enrollment
  • 1,100 clinicians in this Medicare group
NPI 1629456900 (619) 515-2545
Balboa Nephrology Medical Group, Inc.
4.2 mi
Nephrology
9373 HAZARD WAY STE 200
San Diego, CA 92123
  • Reassigned Medicare billing, California enrollment
  • 85 clinicians in this Medicare group
NPI 1316997505 (858) 810-8000

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 92108 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 6

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

DR. VIET DUY NGUYEN M.D.
Internal Medicine (Nephrology)
8885 RIO SAN DIEGO DR STE 212
SAN DIEGO, CA 92108
San Diego County (619) 299-2350
DR. JASON TYLER DAVIS MD
Internal Medicine (Nephrology)
8885 RIO SAN DIEGO DR STE 212
SAN DIEGO, CA 92108
San Diego County (619) 299-2350
MAPLE M FUNG M.D.
Internal Medicine (Nephrology)
8885 RIO SAN DIEGO DR STE 212
SAN DIEGO, CA 92108
San Diego County (619) 299-2350
YAN ZHONG M.D.
Internal Medicine (Nephrology)
8885 RIO SAN DIEGO DR STE 212
SAN DIEGO, CA 92108
San Diego County (619) 299-2350
DR. JOHN STEPHEN HAMMES M.D.
Internal Medicine (Nephrology)
8885 RIO SAN DIEGO DR STE 212
SAN DIEGO, CA 92108
San Diego County (619) 299-2350
ANGELICA CAMARGO- LOWTHERS NP
Nurse Practitioner (Family)
8885 RIO SAN DIEGO DR STE 212
SAN DIEGO, CA 92108
San Diego County (858) 810-8000

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 Maryam Shahamfar's NPI number?

The NPI number for Maryam Shahamfar is 1194354944. It was assigned to this individual provider in the NPPES registry on April 3, 2020.

Where is Maryam Shahamfar located?

Maryam Shahamfar practices at 8885 Rio San Diego Dr Ste 212, San Diego, CA 92108. The listed phone number is (619) 299-2350.

What is Maryam Shahamfar's specialty?

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

Is Maryam Shahamfar enrolled in Medicare?

Yes. Maryam Shahamfar is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Maryam Shahamfar's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Maryam Shahamfar reassigns Medicare benefits to 2 organizations: Family Health Centers Of San Diego Inc (San Diego, CA) and Balboa Nephrology Medical Group, Inc. (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 Maryam Shahamfar'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 Maryam Shahamfar was last updated on June 15, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 months 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.