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DR. BRENDAN ALEXANDER WILLIAMS M.D.
NPI 1629336086
Orthopaedic Surgery - Pediatric Orthopaedic Surgery in Philadelphia, PA

Active since April 24, 2012PECOS EnrolledAccepts Medicare Assignment
3401 CIVIC CENTER BLVD, DIVISION OF PEDIATRIC ORTHOPAEDICS, PHILADELPHIA, PA 19104(215) 590-3131 Get Directions Write a Review

NPPES record last updated: July 30, 2018. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Jul 30, 2018, Aug 3, 2017 (2 updates tracked since 2017).

About Dr. Brendan Alexander Williams M.d. NPPES

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

DR. BRENDAN ALEXANDER WILLIAMS M.D. (NPI 1629336086) is an individual pediatric orthopaedic surgery provider in Philadelphia, Pennsylvania, licensed in Pennsylvania (MT215089) and active in the NPI registry since April 2012. He is enrolled in Medicare PECOS, maintains a secondary practice location in Gainesville, and is a graduate of University Of Missouri, Columbia School Of Medicine (2012).

NPPES Registry Identity

NPI1629336086
Entity TypeIndividualMale
Primary Taxonomy207XP3100X
Provider Legal NameDR. BRENDAN ALEXANDER WILLIAMSCredential: M.D.
Location Address3401 CIVIC CENTER BLVD, DIVISION OF PEDIATRIC ORTHOPAEDICSPhiladelphia, PA 19104
Mailing Address3401 Civic Center Blvd, Division Of Pediatric OrthopaedicsPhiladelphia, PA 19104-4319 · (215) 590-3131
Phone(215) 590-3131
Sole ProprietorNo
Medical School CMSUniversity Of Missouri, Columbia School Of MedicineGraduated 2012
Enumeration DateApril 24, 2012
Last NPPES UpdateJuly 30, 20182 updates tracked since enumeration
✔ NPI 1629336086 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyOrthopaedic Surgery · Pediatric Orthopaedic SurgeryAllopathic & Osteopathic Physicians
Taxonomy Code207XP3100X
License✔ Licensed in PA · MT215089
Definition
An orthopedic surgeon who has additional training and experience in diagnosing, treating and managing musculoskeletal problems in infants, children and adolescents. These may include limb and spine deformities (such as club foot, scoliosis); gait abnormalities (limping); bone and joint infections; broken bones.
Also ListedOrthopaedic SurgeryTaxonomy 207X00000X · License ME124635 (FL)
3401 CIVIC CENTER BLVD, Philadelphia, PA 19104
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Secondary Practice Location 1

Location 13450 Hull RdGainesville, FL 32607-4144 · Phone (352) 273-7001 · Fax (352) 273-7388

Other Identifiers 2

Medicaid021286800FL
OtherJA199ZFL · Medicare Ptan

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. Brendan Alexander Williams M.d. 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 ID9133362965
PECOS Enrollment IDI20200414001116
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 Reassignment

Medicare enrollment records show Brendan Williams reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Children's Surgical Associates Ltd
Same address
Urology
3401 CIVIC CENTER BLVD
Philadelphia, PA 19104
  • Reassigned Medicare billing, Pennsylvania enrollment
  • 178 clinicians in this Medicare group
NPI 1003985854 (215) 590-2754

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.

AARON DORFMAN M.D.
Pediatrics (Pediatric Cardiology)
3401 CIVIC CENTER BLVD, CHILDREN'S HOSPITAL OF PHILADELPHIA - CARDIOLOGY
PHILADELPHIA, PA 19104
Philadelphia County (215) 590-4040
MS. NICOLE MARIE KOEPKE CRNP
Nurse Practitioner (Pediatrics)
3401 CIVIC CENTER BLVD, CHILDREN'S HOSPITAL OF PHILADELPHIA - EMERGENCY MED
PHILADELPHIA, PA 19104
Philadelphia County (215) 590-1944
DR. CASSANDRA ALYS LIGH MD
Surgery (Plastic and Reconstructive Surgery)
3401 CIVIC CENTER BLVD
PHILADELPHIA, PA 19104
Philadelphia County (215) 590-2208
DR. PREETI SOI
Psychiatry & Neurology (Child & Adolescent Psychiatry)
3401 CIVIC CENTER BLVD
PHILADELPHIA, PA 19104
Philadelphia County (215) 590-7555
ROSALIND USHER M.D.
Pediatrics (Developmental - Behavioral Pediatrics)
3401 CIVIC CENTER BLVD, DIVISION OF DEVELOPMENTAL AND BEHAVIORAL PEDIATRICS
PHILADELPHIA, PA 19104
Philadelphia County (215) 590-6336
DR. MATTHEW DAVID SCHREIER MD
Pediatrics (Pediatric Cardiology)
3401 CIVIC CENTER BLVD
PHILADELPHIA, PA 19104
Philadelphia County (215) 590-1000
DR. TERRENCE CALDWELL JR. PHARMD
Pharmacist (Pediatrics)
3401 CIVIC CENTER BLVD
PHILADELPHIA, PA 19104
Philadelphia County (215) 590-1000
ALYSSA STIEFEL CRNP
Nurse Practitioner (Pediatrics)
3401 CIVIC CENTER BLVD
PHILADELPHIA, PA 19104
Philadelphia County (215) 590-1000

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 Brendan Williams's NPI number?

The NPI number for Brendan Williams is 1629336086. It was assigned to this individual provider in the NPPES registry on April 24, 2012.

Where is Brendan Williams located?

Brendan Williams practices at 3401 Civic Center Blvd Division Of Pediatric Orthopaedics, Philadelphia, PA 19104. The listed phone number is (215) 590-3131.

What is Brendan Williams's specialty?

The primary specialty registered for this NPI is Orthopaedic Surgery, specializing in Pediatric Orthopaedic Surgery, with taxonomy code 207XP3100X.

Is Brendan Williams enrolled in Medicare?

Yes. Brendan 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 organization bills Medicare for Brendan Williams's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Brendan Williams reassigns Medicare benefits to Children's Surgical Associates Ltd (Philadelphia, PA). The 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 Brendan 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 Brendan Williams was last updated on July 30, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.