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DR. GAYLE HORVITZ DIAMOND M.D.
NPI 1770768301
Pediatrics - Pediatric Gastroenterology in Philadelphia, PA

Active since January 02, 2008PECOS Enrolled
3401 CIVIC CENTER BLVD, CHILDRENS HOSPITAL OF PHILADELPHIA, PHILADELPHIA, PA 19104(215) 590-3247(215) 590-3606 Get Directions Write a Review

NPPES record last updated: May 16, 2014. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Dr. Gayle Horvitz Diamond M.d. NPPES

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

DR. GAYLE HORVITZ DIAMOND M.D. (NPI 1770768301) is an individual pediatric gastroenterology provider in Philadelphia, Pennsylvania, licensed in Pennsylvania (MD451692) and active in the NPI registry since January 2008. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1770768301
Entity TypeIndividualFemale
Primary Taxonomy2080P0206X
Provider Legal NameDR. GAYLE HORVITZ DIAMONDCredential: M.D.
Location Address3401 CIVIC CENTER BLVD, CHILDRENS HOSPITAL OF PHILADELPHIAPhiladelphia, PA 19104-4319
Mailing Address100 E Penn Sq, 9th Fl North TowerPhiladelphia, PA 19107-3323 · (267) 425-9234 · Fax (267) 425-9299
Phone(215) 590-3247
Fax(215) 590-3606
Sole ProprietorNo
Enumeration DateJanuary 2, 2008
Last NPPES UpdateMay 16, 2014
✔ NPI 1770768301 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatrics · Pediatric GastroenterologyAllopathic & Osteopathic Physicians
Taxonomy Code2080P0206X
License✔ Licensed in PA · MD451692
Definition
A pediatrician who specializes in the diagnosis and treatment of diseases of the digestive systems of infants, children and adolescents. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using lighted scopes to see internal organs.
3401 CIVIC CENTER BLVD, Philadelphia, PA 19104
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Other Names 1

Former Name (1)Dr. Gayle Debra Horvitz Md

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Gayle Horvitz Diamond 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 Gayle Diamond reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Children's Health Care Associates Of New Jersey PC
14 mi
Pediatrics
1012 LAUREL OAK RD, SPECIALTY CENTER AT VOORHEES - CHOP
Voorhees, NJ 08043
  • Reassigned Medicare billing, New Jersey enrollment
  • 190 clinicians in this Medicare group
NPI 1669567681 (856) 435-1300

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 19104 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$137.17 typical visit price
range $59.88 – $180.99
Typical copayment $34.29 (range $14.97 – $45.24)
Most-billed visit code 99204
Established Patient
$105.21 typical visit price
range $19.30 – $147.29
Typical copayment $26.30 (range $4.82 – $36.82)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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 Gayle Diamond's NPI number?

The NPI number for Gayle Diamond is 1770768301. It was assigned to this individual provider in the NPPES registry on January 2, 2008. The provider is also known as Dr. Gayle Debra Horvitz MD.

Where is Gayle Diamond located?

Gayle Diamond practices at 3401 Civic Center Blvd Childrens Hospital Of Philadelphia, Philadelphia, PA 19104. The listed phone number is (215) 590-3247.

What is Gayle Diamond's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Gastroenterology, with taxonomy code 2080P0206X.

Is Gayle Diamond enrolled in Medicare?

Yes. Gayle Diamond is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Gayle Diamond's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Gayle Diamond reassigns Medicare benefits to Children's Health Care Associates Of New Jersey PC (Voorhees, NJ). 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 Gayle Diamond'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 Gayle Diamond was last updated on May 16, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.