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ELI MARCEL CAHAN MD MS
NPI 1942943071
Pediatrics - Neonatal-Perinatal Medicine in San Francisco, CA

Active since April 17, 2022PECOS Enrolled
1975 4TH ST FL 3, SAN FRANCISCO, CA 94143(415) 353-1565 Get Directions Write a Review

NPPES record last updated: January 29, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Jan 29, 2026, Apr 17, 2022 (2 updates tracked since 2022).

About Eli Marcel Cahan Md Ms NPPES

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

ELI MARCEL CAHAN MD MS (NPI 1942943071) is an individual neonatal-perinatal medicine provider in San Francisco, California, licensed in California (A201994) and active in the NPI registry since April 2022. He is enrolled in Medicare PECOS and is a graduate of New York University School Of Medicine (2022).

NPPES Registry Identity

NPI1942943071
Entity TypeIndividualMale
Primary Taxonomy2080N0001X
Provider Legal NameELI MARCEL CAHANCredential: MD MS
Location Address1975 4TH ST FL 3San Francisco, CA 94143-2351
Mailing Address15 W 72nd St Apt 24gNew York, NY 10023-3458 · (650) 285-0702
Phone(415) 353-1565
Sole ProprietorYes
Medical School CMSNew York University School Of MedicineGraduated 2022
Enumeration DateApril 17, 2022
Last NPPES UpdateJanuary 29, 20262 updates tracked since enumeration
NPPES CertifiedJanuary 29, 2026
✔ NPI 1942943071 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPediatrics · Neonatal-Perinatal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code2080N0001X
License✔ Licensed in CA · A201994
Definition
A pediatrician who is the principal care provider for sick newborn infants. Clinical expertise is used for direct patient care and for consulting with obstetrical colleagues to plan for the care of mothers who have high-risk pregnancies.
Also ListedPediatricsTaxonomy 208000000X · License A201994 (CA)
1975 4TH ST FL 3, San Francisco, CA 94143
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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Eli Marcel Cahan Md Ms is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID9830679422
PECOS Enrollment IDI20260213000636
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

4

Medicare enrollment records show Eli Cahan reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Permanente Medical Group Inc
3.0 mi
Internal Medicine
2238 GEARY
San Francisco, CA 94116
  • Reassigned Medicare billing, California enrollment
  • 20,078 clinicians in this Medicare group
NPI 1841373800 (415) 833-2200
Ucsf Pediatrics Associates
3.7 mi
Pediatrics
505 PARNASSUS AVE
San Francisco, CA 94143
  • Reassigned Medicare billing, California enrollment
  • 1,159 clinicians in this Medicare group
NPI 1376614016 (415) 353-2000
University Of California San Francisco
3.7 mi
Surgery
400 PARNASSUS AVE, MCB 300
San Francisco, CA 94143
  • Reassigned Medicare billing, California enrollment
  • 5,645 clinicians in this Medicare group
NPI 1346329380 (415) 353-2161
Ucsf Medical Group Business Services
3.7 mi
Internal Medicine
400 PARNASSUS AVE
San Francisco, CA 94122
  • Reassigned Medicare billing, California enrollment
  • 5,544 clinicians in this Medicare group
NPI 1477624104 (415) 353-2808

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

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.

CRISTINA ENNDY GUTIERREZ
Pediatrics (Neonatal-Perinatal Medicine)
1975 4TH ST FL 3
SAN FRANCISCO, CA 94143
San Francisco County (415) 353-1565
DR. SHEILA RAZDAN MD, MPH
Pediatrics (Neonatal-Perinatal Medicine)
1975 4TH ST FL 3
SAN FRANCISCO, CA 94143
San Francisco County (415) 476-1888
ALLISON CALI PAINE CHAKRABARTI M.D.
Pediatrics
1975 4TH ST FL 3
SAN FRANCISCO, CA 94143
San Francisco County (415) 353-1565
REBECCA LEE CARTER MD
Pediatrics (Neonatal-Perinatal Medicine)
1975 4TH ST FL 3
SAN FRANCISCO, CA 94143
San Francisco County (415) 353-1565
DR. DAISY CATALINA CORTES M.D.
Pediatrics (Pediatric Hematology-Oncology)
1975 4TH ST FL 3
SAN FRANCISCO, CA 94143
San Francisco County (415) 353-1565
DR. JEREMY JAMES CHAILLET MD
Pediatrics (Neonatal-Perinatal Medicine)
1975 4TH ST FL 3
SAN FRANCISCO, CA 94143
San Francisco County (415) 353-1565
DR. IAN CHRISTOPHER HOPPER DO
Pediatrics
1975 4TH ST FL 3
SAN FRANCISCO, CA 94143
San Francisco County (415) 353-1565
MELISSA SUZANNE STRANGE DO
Pediatrics (Neonatal-Perinatal Medicine)
1975 4TH ST FL 3
SAN FRANCISCO, CA 94143
San Francisco County (415) 476-1888

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 Eli Cahan's NPI number?

The NPI number for Eli Cahan is 1942943071. It was assigned to this individual provider in the NPPES registry on April 17, 2022.

Where is Eli Cahan located?

Eli Cahan practices at 1975 4th St Fl 3, San Francisco, CA 94143. The listed phone number is (415) 353-1565.

What is Eli Cahan's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Neonatal-Perinatal Medicine, with taxonomy code 2080N0001X.

Is Eli Cahan enrolled in Medicare?

Yes. Eli Cahan is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Eli Cahan's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Eli Cahan reassigns Medicare benefits to 4 organizations: Permanente Medical Group Inc (San Francisco, CA), Ucsf Pediatrics Associates (San Francisco, CA), University Of California San Francisco (San Francisco, CA) and Ucsf Medical Group Business Services (San Francisco, 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 Eli Cahan'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 Eli Cahan was last updated on January 29, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.