CAROLINA ELLINGER DA FONSECA MD
NPI 1689253403
Pediatrics in San Francisco, CA

Active since April 07, 2021PECOS Enrolled
1975 4TH ST, SAN FRANCISCO, CA 94143(415) 514-4079 Get Directions Write a Review

NPPES record last updated: August 5, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Aug 5, 2025, Jun 18, 2021, Apr 7, 2021 (3 updates tracked since 2021).

About Carolina Ellinger Da Fonseca Md NPPES

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

CAROLINA ELLINGER DA FONSECA MD (NPI 1689253403) is an individual pediatrics provider in San Francisco, California, licensed in California (A196003) and active in the NPI registry since April 2021. She is enrolled in Medicare PECOS and maintains a secondary practice location in Detroit.

NPPES Registry Identity

NPI1689253403
Entity TypeIndividualFemale
Primary Taxonomy208000000X
Provider Legal NameCAROLINA ELLINGER DA FONSECACredential: MD
Location Address1975 4TH STSan Francisco, CA 94143-2351
Mailing Address22201 Moross Rd Ste 80Detroit, MI 48236-2169 · (313) 343-3800 · Fax (313) 343-4756
Sole ProprietorNo
Enumeration DateApril 7, 2021
Last NPPES UpdateAugust 5, 20253 updates tracked since enumeration
NPPES CertifiedAugust 5, 2025
✔ NPI 1689253403 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians
Taxonomy Code208000000X
Licenses✔ Licensed in CA · A196003✔ Licensed in MI · 4351047788
Definition
A pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectrum of health services ranging from preventive healthcare to the diagnosis and treatment of acute and chronic diseases. A pediatrician deals with biological, social and environmental influences on the developing child, and with the impact of disease and dysfunction on development.
1975 4TH ST, San Francisco, CA 94143

Other Names 1

Other Name (5)Carolina Fonseca

Secondary Practice Location 1

Location 122201 Moross Rd Ste 80Detroit, MI 48236-2169 · Phone (313) 343-3800 · Fax (313) 343-4756

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Carolina Ellinger Da Fonseca Md 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

4

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

Internal Medicine
505 PARNASSUS AVE
San Francisco, CA 94143
  • Reassigned Medicare billing, California enrollment
  • 339 clinicians in this Medicare group
Pediatrics
505 PARNASSUS AVE
San Francisco, CA 94143
  • Reassigned Medicare billing, California enrollment
  • 1,159 clinicians in this Medicare group
Surgery
400 PARNASSUS AVE, MCB 300
San Francisco, CA 94143
  • Reassigned Medicare billing, California enrollment
  • 5,645 clinicians in this Medicare group
Internal Medicine
400 PARNASSUS AVE
San Francisco, CA 94122
  • Reassigned Medicare billing, California enrollment
  • 5,544 clinicians in this Medicare group

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 94143 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
$104.51 typical visit price
range $69.00 – $202.35
Typical copayment $26.12 (range $17.25 – $50.58)
Most-billed visit code 99203
Established Patient
$119.48 typical visit price
range $23.44 – $166.46
Typical copayment $29.87 (range $5.86 – $41.61)
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.

Physical Therapist
1975 4TH ST
SAN FRANCISCO, CA 94143
Pediatrics
1975 4TH ST
SAN FRANCISCO, CA 94143
Anesthesiology
1975 4TH ST
SAN FRANCISCO, CA 94143
Nurse Practitioner (Pediatrics)
1975 4TH ST
SAN FRANCISCO, CA 94143
Pharmacist (Pediatrics)
1975 4TH ST
SAN FRANCISCO, CA 94143
Social Worker (Clinical)
1975 4TH ST
SAN FRANCISCO, CA 94143
Pediatrics (Adolescent Medicine)
1975 4TH ST
SAN FRANCISCO, CA 94143
Nurse Practitioner (Neonatal)
1975 4TH ST
SAN FRANCISCO, CA 94143

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 Carolina Ellinger Da Fonseca's NPI number?

The NPI number for Carolina Ellinger Da Fonseca is 1689253403. It was assigned to this individual provider in the NPPES registry on April 7, 2021. The provider is also known as Carolina Fonseca.

Where is Carolina Ellinger Da Fonseca located?

Carolina Ellinger Da Fonseca practices at 1975 4th St, San Francisco, CA 94143. The listed phone number is (415) 514-4079.

What is Carolina Ellinger Da Fonseca's specialty?

The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.

Is Carolina Ellinger Da Fonseca enrolled in Medicare?

Yes. Carolina Ellinger Da Fonseca is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Carolina Ellinger Da Fonseca's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Carolina Ellinger Da Fonseca reassigns Medicare benefits to 4 organizations: Regents Univ Of California Ucsf (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 Carolina Ellinger Da Fonseca'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 Carolina Ellinger Da Fonseca was last updated on August 5, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.