DR. ALEX HOLDAWAY PHD
NPI 1710657069
Psychologist - Clinical Child & Adolescent in Philadelphia, PA

Q: What is Alex Holdaway's NPI number?

The NPI number for Alex Holdaway is 1710657069. It was assigned to this individual provider in the NPPES registry on September 17, 2021.

Q: What is Alex Holdaway's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Clinical Child & Adolescent, with taxonomy code 103TC2200X.

Q: When was this NPI record last updated?

The NPPES record for Alex Holdaway was last updated on January 7, 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.

Active since September 17, 2021PECOS Enrolled

3401 CIVIC CENTER BLVD, PHILADELPHIA, PA 19104(267) 425-9675 Get Directions Write a Review

NPPES record last updated: January 7, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jan 7, 2026, Sep 17, 2021 (2 updates tracked since 2021).

On this page

About Dr. Alex Holdaway Phd NPPES

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

DR. ALEX HOLDAWAY PHD (NPI 1710657069) is an individual clinical child & adolescent provider in Philadelphia, Pennsylvania, licensed in Pennsylvania (PS019029) and active in the NPI registry since September 2021. He is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of Other (2017).

NPPES Registry Identity

NPI1710657069

Entity TypeIndividualMale

Primary Taxonomy103TC2200X

Provider Legal NameDR. ALEX HOLDAWAYCredential: PHD

Location Address3401 CIVIC CENTER BLVDPhiladelphia, PA 19104-4319

Mailing AddressPo Box 780125Philadelphia, PA 19178-0125 · (804) 922-4844

Phone(267) 425-9675

Sole ProprietorNo

Medical School CMSOtherGraduated 2017

Enumeration DateSeptember 17, 2021

Last NPPES UpdateJanuary 7, 20262 updates tracked since enumeration

NPPES CertifiedJanuary 7, 2026

✔ NPI 1710657069 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychologist · Clinical Child & AdolescentBehavioral Health & Social Service Providers

Taxonomy Code103TC2200X

Licenses✔ Licensed in PA · PS019029✔ Licensed in VA · 0810008966

Definition

A psychologist who develops and applies scientific knowledge to the delivery of psychological services to infants, toddlers, children and adolescents within their social context. Of particular importance to the specialty of clinical child psychology is an understanding of the basic psychological needs of children and adolescents, and how the family and other social contexts influence the socio-emotional adjustment, cognitive development, behavioral adaptation and health status of children and adolescents.

3401 CIVIC CENTER BLVD, Philadelphia, PA 19104

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Secondary Practice Locations 2

Location 11308 Sherwood AveRichmond, VA 23220-1210 · Phone (804) 828-8200 · Fax (804) 628-3279

Location 21250 E Marshall StRichmond, VA 23298-5023 · Phone (804) 828-8200 · Fax (804) 628-3279

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Oscar Health.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Alex Holdaway Phd is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID8628556685

PECOS Enrollment IDI20260130002539

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 Alex Holdaway reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Mcv Associated Physicians

205 mi

Anesthesiology

1250 E MARSHALL ST, MAIN 1-214, BOX 980510
Richmond, VA 23298

Reassigned Medicare billing, Virginia enrollment
2,481 clinicians in this Medicare group

NPI 1710959457 (804) 828-8707

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

DR. ARCHANA ANANDAKRISHNAN DO

Pediatrics (Pediatric Gastroenterology)

3401 CIVIC CENTER BLVD, DIVISION OF PEDIATRIC GASTROENTEROLOGY
PHILADELPHIA, PA 19104

Philadelphia County (267) 425-2739

DR. JONATHAN YU MD

Pediatrics

3401 CIVIC CENTER BLVD
PHILADELPHIA, PA 19104

Philadelphia County (215) 590-1220

JULIA ESTHER LIM PA-C

Physician Assistant

3401 CIVIC CENTER BLVD
PHILADELPHIA, PA 19104

Philadelphia County (215) 590-1000

HELIA IMANY-SHAKIBAI MD

Pediatrics

3401 CIVIC CENTER BLVD
PHILADELPHIA, PA 19104

Philadelphia County (215) 590-1220

EMILY PENN PA-C

Physician Assistant

3401 CIVIC CENTER BLVD
PHILADELPHIA, PA 19104

Philadelphia County (864) 873-7639

MS. MEGAN ELIZABETH STEIGERWALT

Nurse Practitioner (Pediatrics, Critical Care)

3401 CIVIC CENTER BLVD
PHILADELPHIA, PA 19104

Philadelphia County (267) 471-9308

JACOB SWITZER MD

Pediatrics

3401 CIVIC CENTER BLVD
PHILADELPHIA, PA 19104

Philadelphia County (215) 590-1220

REBECCA TAUB

Nurse Practitioner (Women's Health)

3401 CIVIC CENTER BLVD
PHILADELPHIA, PA 19104

Philadelphia County (800) 468-8376

LORRAINE E KATZ M.D.

Pediatrics (Pediatric Endocrinology)

3401 CIVIC CENTER BLVD, CHILDREN'S HOSPITAL OF PHILADELPHIA - ENDOCRINOLOGY
PHILADELPHIA, PA 19104

Philadelphia County (215) 590-3174

NEAL J SONDHEIMER

Medical Genetics (Clinical Genetics (M.D.))

3401 CIVIC CENTER BLVD, CHILDREN'S HOSPITAL OF PHILADELPHIA - METABOLISM
PHILADELPHIA, PA 19104

Philadelphia County (215) 590-3376

DR. JAMES M CALLAHAN MD

Pediatrics (Pediatric Emergency Medicine)

3401 CIVIC CENTER BLVD, CHILDREN'S HOSPITAL OF PHILADELPHIA - EMERGENCY MED
PHILADELPHIA, PA 19104

Philadelphia County (215) 590-1944

KAREN C PESTA CNMW

Advanced Practice Midwife

3401 CIVIC CENTER BLVD
PHILADELPHIA, PA 19104

Philadelphia County (267) 425-6944

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 Alex Holdaway's NPI number?

The NPI number for Alex Holdaway is 1710657069. It was assigned to this individual provider in the NPPES registry on September 17, 2021.

Where is Alex Holdaway located?

Alex Holdaway practices at 3401 Civic Center Blvd, Philadelphia, PA 19104. The listed phone number is (267) 425-9675.

What is Alex Holdaway's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Clinical Child & Adolescent, with taxonomy code 103TC2200X.

Is Alex Holdaway enrolled in Medicare?

Yes. Alex Holdaway is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Alex Holdaway's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Alex Holdaway reassigns Medicare benefits to Mcv Associated Physicians (Richmond, VA). 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 Alex Holdaway's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Alex Holdaway accept?

Health plans from Oscar Health list Alex Holdaway as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Alex Holdaway was last updated on January 7, 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.