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DR. EMILY STORM TOMLINSON MD
NPI 1548898794
Pediatrics - Pediatric Hematology-Oncology in San Francisco, CA

Active since March 31, 2020PECOS Enrolled
550 16TH ST FL 4, SAN FRANCISCO, CA 94143(628) 286-6711 Get Directions Write a Review

NPPES record last updated: May 19, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: May 19, 2026, Mar 31, 2020 (2 updates tracked since 2020).

About Dr. Emily Storm Tomlinson Md NPPES

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

DR. EMILY STORM TOMLINSON MD (NPI 1548898794) is an individual pediatric hematology-oncology provider in San Francisco, California, licensed in California (187335) and active in the NPI registry since March 2020. She is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of University Of Arizona College Of Medicine - Phoenix (2020).

NPPES Registry Identity

NPI1548898794
Entity TypeIndividualFemale
Primary Taxonomy2080P0207X
Provider Legal NameDR. EMILY STORM TOMLINSONCredential: MD
Location Address550 16TH ST FL 4San Francisco, CA 94143-2549
Mailing Address1975 4th StSan Francisco, CA 94143-2351 · (415) 476-3831
Phone(628) 286-6711
Sole ProprietorNo
Medical School CMSUniversity Of Arizona College Of Medicine - PhoenixGraduated 2020
Enumeration DateMarch 31, 2020
Last NPPES UpdateMay 19, 20262 updates tracked since enumeration
NPPES CertifiedMay 19, 2026
✔ NPI 1548898794 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatrics · Pediatric Hematology-OncologyAllopathic & Osteopathic Physicians
Taxonomy Code2080P0207X
License✔ Licensed in CA · 187335
Definition
A pediatrician trained in the combination of pediatrics, hematology and oncology to recognize and manage pediatric blood disorders and cancerous diseases.
550 16TH ST FL 4, San Francisco, CA 94143
Open in Google Maps ↗

Secondary Practice Locations 2

Location 11975 4th StSan Francisco, CA 94143-2351 · Phone (415) 476-3831
Location 2747 52nd StOakland, CA 94609-1809 · Phone (510) 428-3000

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Emily Storm Tomlinson Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID3971982620
PECOS Enrollment IDI20260602004104
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

3

Medicare enrollment records show Emily Tomlinson reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

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
3.8 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
3.8 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.

ALYSSA TOSHIMI GO
Pediatrics
550 16TH ST FL 4
SAN FRANCISCO, CA 94143
San Francisco County (415) 476-5001
ZACHARY EMMANUEL WAN SANDOVAL MD, MPH
Student in an Organized Health Care Education/Training Program
550 16TH ST FL 4
SAN FRANCISCO, CA 94143
San Francisco County (415) 476-5001
RULAN YI MD
Student in an Organized Health Care Education/Training Program
550 16TH ST FL 4
SAN FRANCISCO, CA 94143
San Francisco County (415) 476-5001
ELIZABETH HALE MONTESANO SCHEIBE MD
Student in an Organized Health Care Education/Training Program
550 16TH ST FL 4
SAN FRANCISCO, CA 94143
San Francisco County (415) 476-5001
ISHAAN AMARJITSINGH SANGWAN
Student in an Organized Health Care Education/Training Program
550 16TH ST FL 4
SAN FRANCISCO, CA 94143
San Francisco County (415) 476-5001
MARY ROLFES STUDENT
Student in an Organized Health Care Education/Training Program
550 16TH ST FL 4
SAN FRANCISCO, CA 94143
San Francisco County (415) 476-6245
EVELYN MARIA HOOVER
Student in an Organized Health Care Education/Training Program
550 16TH ST FL 4
SAN FRANCISCO, CA 94143
San Francisco County (415) 476-5001
VALERIE JUDITH FONG-SILVA MD
Student in an Organized Health Care Education/Training Program
550 16TH ST FL 4
SAN FRANCISCO, CA 94143
San Francisco County (415) 476-5001

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 Emily Tomlinson's NPI number?

The NPI number for Emily Tomlinson is 1548898794. It was assigned to this individual provider in the NPPES registry on March 31, 2020.

Where is Emily Tomlinson located?

Emily Tomlinson practices at 550 16th St Fl 4, San Francisco, CA 94143. The listed phone number is (628) 286-6711.

What is Emily Tomlinson's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Hematology-Oncology, with taxonomy code 2080P0207X.

Is Emily Tomlinson enrolled in Medicare?

Yes. Emily Tomlinson is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Emily Tomlinson's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Emily Tomlinson reassigns Medicare benefits to 3 organizations: 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 Emily Tomlinson'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 Emily Tomlinson was last updated on May 19, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.