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DR. RYAN M CALLAHAN M.D.
NPI 1023271749
Pediatrics - Pediatric Cardiology in Philadelphia, PA

Active since July 02, 2008PECOS Enrolled
3401 CIVIC CENTER BLVD, PHILADELPHIA, PA 19104(267) 426-2957 Get Directions Write a Review

NPPES record last updated: April 9, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Apr 9, 2025, Oct 9, 2020 (2 updates tracked since 2020).

About Dr. Ryan M Callahan M.d. NPPES

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

DR. RYAN M CALLAHAN M.D. (NPI 1023271749) is an individual pediatric cardiology provider in Philadelphia, Pennsylvania, licensed in Pennsylvania (MD442029) and active in the NPI registry since July 2008. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1023271749
Entity TypeIndividualMale
Primary Taxonomy2080P0202X
Provider Legal NameDR. RYAN M CALLAHANCredential: M.D.
Location Address3401 CIVIC CENTER BLVDPhiladelphia, PA 19104-4319
Mailing Address3401 Civic Center BlvdPhiladelphia, PA 19104-4319
Phone(267) 426-2957
Sole ProprietorYes
Enumeration DateJuly 2, 2008
Last NPPES UpdateApril 9, 20252 updates tracked since enumeration
NPPES CertifiedApril 9, 2025
✔ NPI 1023271749 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatrics · Pediatric CardiologyAllopathic & Osteopathic Physicians
Taxonomy Code2080P0202X
Licenses✔ Licensed in PA · MD442029✔ Licensed in NJ · 25MA11542100
Definition
A pediatric cardiologist provides comprehensive care to patients with cardiovascular problems. This specialist is skilled in selecting, performing and evaluating the structural and functional assessment of the heart and blood vessels, and the clinical evaluation of cardiovascular disease.
3401 CIVIC CENTER BLVD, Philadelphia, PA 19104
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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Ryan M Callahan M.d. 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 Reassignment

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

Childrens Health Care Associates, Inc
Same address
Neurology
3401 CIVIC CENTER BLVD, CHILDREN'S HOSPITAL OF PHILADELPHIA
Philadelphia, PA 19104
  • Reassigned Medicare billing, Pennsylvania enrollment
  • 1,225 clinicians in this Medicare group
NPI 1033204086 (215) 590-1000

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 Ryan Callahan's NPI number?

The NPI number for Ryan Callahan is 1023271749. It was assigned to this individual provider in the NPPES registry on July 2, 2008.

Where is Ryan Callahan located?

Ryan Callahan practices at 3401 Civic Center Blvd, Philadelphia, PA 19104. The listed phone number is (267) 426-2957.

What is Ryan Callahan's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Cardiology, with taxonomy code 2080P0202X.

Is Ryan Callahan enrolled in Medicare?

Yes. Ryan Callahan is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Ryan Callahan's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Ryan Callahan reassigns Medicare benefits to Childrens Health Care Associates, Inc (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 Ryan Callahan'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 Ryan Callahan was last updated on April 9, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.