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STEFAN H HAGMANN MD
NPI 1598865487
Pediatrics - Pediatric Infectious Diseases in Springfield, MA

Active since September 22, 2006PECOS Enrolled
75.8/100
CMS Quality Rating
50 WASON AVENUE, 1ST FL, SPRINGFIELD, MA 01107(413) 794-5437(413) 794-3207 Get Directions Write a Review

NPPES record last updated: February 28, 2022. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Feb 28, 2022, Feb 21, 2022 (2 updates tracked since 2022).

About Stefan H Hagmann Md NPPES

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

STEFAN H HAGMANN MD (NPI 1598865487) is an individual pediatric infectious diseases provider in Springfield, Massachusetts, licensed in Massachusetts (290698) and active in the NPI registry since September 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1598865487
Entity TypeIndividualMale
Primary Taxonomy2080P0208X
Provider Legal NameSTEFAN H HAGMANNCredential: MD
Location Address50 WASON AVENUE, 1ST FLSpringfield, MA 01107-1274
Mailing Address280 Chestnut Street, 2nd FloorSpringfield, MA 01199-1001 · (413) 794-5700
Phone(413) 794-5437
Fax(413) 794-3207
Sole ProprietorNo
Enumeration DateSeptember 22, 2006
Last NPPES UpdateFebruary 28, 20222 updates tracked since enumeration
NPPES CertifiedFebruary 28, 2022
✔ NPI 1598865487 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatrics · Pediatric Infectious DiseasesAllopathic & Osteopathic Physicians
Taxonomy Code2080P0208X
License✔ Licensed in MA · 290698
Definition
A pediatrician trained to care for children in the diagnosis, treatment and prevention of infectious diseases. This specialist can apply specific knowledge to affect a better outcome for pediatric infections with complicated courses, underlying diseases that predispose to unusual or severe infections, unclear diagnoses, uncommon diseases and complex or investigational treatments.
50 WASON AVENUE, Springfield, MA 01107
Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter Health, Ambetter Health of Delaware, 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)

Stefan H Hagmann Md 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 Reassignments

2

Medicare enrollment records show Stefan Hagmann reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

North Shore-Lij Medical PC
108 mi
Urology
1010 NORTHERN BLVD STE 110
Great Neck, NY 11021
  • Reassigned Medicare billing, New York enrollment
  • 9,353 clinicians in this Medicare group
NPI 1053688572 (516) 321-7400
Hackensack Meridian Health Medical Group - Specialty Care PC
146 mi
Surgical Critical Care
331 NEWMAN SPRINGS RD STE 220
Red Bank, NJ 07701
  • Reassigned Medicare billing, New Jersey enrollment
  • 2,844 clinicians in this Medicare group
NPI 1215989249 (732) 807-0800

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

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

75.8/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality68.65
Promoting Interoperability100
Improvement Activities40
Cost50.69

Other Providers at the Same Location NPPES 7

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

BETH A. ROSEN MD
Psychiatry & Neurology (Neurology with Special Qualifications in Child Neurology)
50 WASON AVENUE, 1ST FLOOR
SPRINGFIELD, MA 01107
Hampden County (413) 794-5437
MS. LISA R JENIKE NP
Nurse Practitioner (Family)
50 WASON AVENUE
SPRINGFIELD, MA 01107
Hampden County (413) 794-5437
PAULA K BRAVERMAN M.D.
Pediatrics (Adolescent Medicine)
50 WASON AVENUE
SPRINGFIELD, MA 01107
Hampden County (413) 794-5437
DR. ADAM J DAVID M.D.
Psychiatry & Neurology (Neurology with Special Qualifications in Child Neurology)
50 WASON AVENUE
SPRINGFIELD, MA 01107
Hampden County (413) 794-5437
SAMHITA BHATTARAI MD
Pediatrics (Pediatric Endocrinology)
50 WASON AVENUE, 1ST FLOOR
SPRINGFIELD, MA 01107
Hampden County (413) 794-5437
BRACHA K GOLDSWEIG M.D.
Pediatrics (Pediatric Endocrinology)
50 WASON AVENUE, 1ST FL
SPRINGFIELD, MA 01107
Hampden County (413) 794-5437
MICHAEL I REIFF MD
Pediatrics (Developmental - Behavioral Pediatrics)
50 WASON AVENUE
SPRINGFIELD, MA 01107
Hampden County (413) 794-5437

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 Stefan Hagmann's NPI number?

The NPI number for Stefan Hagmann is 1598865487. It was assigned to this individual provider in the NPPES registry on September 22, 2006.

Where is Stefan Hagmann located?

Stefan Hagmann practices at 50 Wason Avenue 1st Fl, Springfield, MA 01107. The listed phone number is (413) 794-5437.

What is Stefan Hagmann's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Infectious Diseases, with taxonomy code 2080P0208X.

Is Stefan Hagmann enrolled in Medicare?

Yes. Stefan Hagmann is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Stefan Hagmann's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Stefan Hagmann reassigns Medicare benefits to 2 organizations: North Shore-Lij Medical PC (Great Neck, NY) and Hackensack Meridian Health Medical Group - Specialty Care PC (Red Bank, NJ). 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 Stefan Hagmann's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Stefan Hagmann accept?

Health plans from Ambetter Health, Ambetter Health of Delaware and Oscar Health list Stefan Hagmann 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 Stefan Hagmann was last updated on February 28, 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.