DR. PAMELA BRITTO-WILLIAMS MD
NPI 1457663452
Allergy & Immunology in Fresno, CA

Active since July 07, 2010PECOS EnrolledAccepts Medicare Assignment
7300 N FRESNO ST, FRESNO, CA 93720(559) 448-4500 Get Directions Write a Review

NPPES record last updated: January 24, 2022. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Jan 24, 2022, Nov 30, 2020, Oct 14, 2016 (3 updates tracked since 2016).

About Dr. Pamela Britto-williams Md NPPES

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

DR. PAMELA BRITTO-WILLIAMS MD (NPI 1457663452) is an individual allergy & immunology provider in Fresno, California, licensed in California (C145265) and active in the NPI registry since July 2010. She is enrolled in Medicare PECOS and is a graduate of Other (1999).

NPPES Registry Identity

NPI1457663452
Entity TypeIndividualFemale
Primary Taxonomy207K00000X
Provider Legal NameDR. PAMELA BRITTO-WILLIAMSCredential: MD
Location Address7300 N FRESNO STFresno, CA 93720-2941
Mailing Address655 Minnewawa Ave, Po Box 3255Clovis, CA 93612 · (559) 697-5703 · Fax (313) 789-1651
Sole ProprietorNo
Medical School CMSOtherGraduated 1999
Enumeration DateJuly 7, 2010
Last NPPES UpdateJanuary 24, 20223 updates tracked since enumeration
NPPES CertifiedJanuary 24, 2022
✔ NPI 1457663452 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyAllergy & ImmunologyAllopathic & Osteopathic Physicians
Taxonomy Code207K00000X
Licenses✔ Licensed in CA · C145265✔ Licensed in MI · 4301081234
Definition
An allergist-immunologist is trained in evaluation, physical and laboratory diagnosis, and management of disorders involving the immune system. Selected examples of such conditions include asthma, anaphylaxis, rhinitis, eczema, and adverse reactions to drugs, foods, and insect stings as well as immune deficiency diseases (both acquired and congenital), defects in host defense, and problems related to autoimmune disease, organ transplantation, or malignancies of the immune system.
Also ListedPediatricsTaxonomy 208000000X · License C145265 (CA), 4301081234 (MI)
7300 N FRESNO ST, Fresno, CA 93720

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

Dr. Pamela Britto-williams 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 ID2264625912
PECOS Enrollment IDI20170106000330
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 Pamela Britto-williams reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Allergy
7471 N FRESNO ST
Fresno, CA 93720
  • Reassigned Medicare billing, California enrollment
  • 41 clinicians in this Medicare group
Internal Medicine
7373 WEST LANE
Stockton, CA 95210
  • Reassigned Medicare billing, California enrollment
  • 20,078 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.

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.

Internal Medicine
7300 N FRESNO ST
FRESNO, CA 93720
Pharmacist
7300 N FRESNO ST
FRESNO, CA 93720
Neurological Surgery
7300 N FRESNO ST
FRESNO, CA 93720
Pediatrics
7300 N FRESNO ST
FRESNO, CA 93720
Emergency Medicine
7300 N FRESNO ST
FRESNO, CA 93720
Pharmacist
7300 N FRESNO ST
FRESNO, CA 93720
Allergy & Immunology
7300 N FRESNO ST
FRESNO, CA 93720
Internal Medicine
7300 N FRESNO ST
FRESNO, CA 93720

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 Pamela Britto-williams's NPI number?

The NPI number for Pamela Britto-williams is 1457663452. It was assigned to this individual provider in the NPPES registry on July 7, 2010.

Where is Pamela Britto-williams located?

Pamela Britto-williams practices at 7300 N Fresno St, Fresno, CA 93720. The listed phone number is (559) 448-4500.

What is Pamela Britto-williams's specialty?

The primary specialty registered for this NPI is Allergy & Immunology with taxonomy code 207K00000X.

Is Pamela Britto-williams enrolled in Medicare?

Yes. Pamela Britto-williams 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 Pamela Britto-williams's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Pamela Britto-williams reassigns Medicare benefits to 2 organizations: Baz Allergy, Asthma & Sinus Center, Inc. (Fresno, CA) and Permanente Medical Group Inc (Stockton, 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 Pamela Britto-williams'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 Pamela Britto-williams was last updated on January 24, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.