DR. CATHERINE M NOWAK M.D.
NPI 1053393470
Medical Genetics - Clinical Genetics (M.D.) in Boston, MA

Active since November 20, 2005PECOS EnrolledAccepts Medicare Assignment
55 FRUIT ST, BOSTON, MA 02114(617) 726-1742(617) 726-1566 Get Directions Write a Review

NPPES record last updated: October 12, 2022. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Dr. Catherine M Nowak M.d. NPPES

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

DR. CATHERINE M NOWAK M.D. (NPI 1053393470) is an individual clinical genetics (m.d.) provider in Boston, Massachusetts, licensed in Massachusetts (76523) and active in the NPI registry since November 2005. She is enrolled in Medicare PECOS and is a graduate of Other (1989).

NPPES Registry Identity

NPI1053393470
Entity TypeIndividualFemale
Primary Taxonomy207SG0201X
Provider Legal NameDR. CATHERINE M NOWAKCredential: M.D.
Location Address55 FRUIT STBoston, MA 02114-2696
Mailing Address7 Joanne DrWestborough, MA 01581-3519 · (508) 320-0782
Fax(617) 726-1566
Sole ProprietorNo
Medical School CMSOtherGraduated 1989
Enumeration DateNovember 20, 2005
Last NPPES UpdateOctober 12, 2022
NPPES CertifiedOctober 12, 2022
✔ NPI 1053393470 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyMedical Genetics · Clinical Genetics (M.D.)Allopathic & Osteopathic Physicians
Taxonomy Code207SG0201X
License✔ Licensed in MA · 76523
Definition
A clinical geneticist demonstrates competence in providing comprehensive diagnostic, management and counseling services for genetic disorders.
Also ListedPediatricsTaxonomy 208000000X · License 76523 (MA)
55 FRUIT ST, Boston, MA 02114

Other Names 1

Professional Name (2)Dr. Catherine B Nowak M.d.

Other Identifiers 1

Medicaid3126668MA

Accepted Insurance

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. Catherine M Nowak 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 ID9234175613
PECOS Enrollment IDI20050707000561
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

3

Medicare enrollment records show Catherine Nowak reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

General Acute Care Hospital
55 FRUIT ST, BULFINCH 360
Boston, MA 02114
  • Reassigned Medicare billing, Massachusetts enrollment
  • 6,234 clinicians in this Medicare group
Dermatology
55 FRUIT ST, BUL 2
Boston, MA 02114
  • Reassigned Medicare billing, Massachusetts enrollment
  • 6,360 clinicians in this Medicare group
Pediatric Surgery
51 BLOSSOM ST
Boston, MA 02114
  • Reassigned Medicare billing, Massachusetts enrollment
  • 128 clinicians in this Medicare group

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.

Pathology (Anatomic Pathology)
55 FRUIT ST
BOSTON, MA 02114
Internal Medicine (Hematology & Oncology)
55 FRUIT ST
BOSTON, MA 02114
Anesthesiology
55 FRUIT ST, GRAY-BIGELOW 444
BOSTON, MA 02114
Physical Medicine & Rehabilitation
55 FRUIT ST
BOSTON, MA 02114
Internal Medicine (Infectious Disease)
55 FRUIT ST, DIVISION OF INFECTIOUS DISEASE, GRJ-504
BOSTON, MA 02114
Nurse Practitioner (Acute Care)
55 FRUIT ST, BIGALOW 852 F
BOSTON, MA 02114
Nurse Practitioner
55 FRUIT ST
BOSTON, MA 02114
Internal Medicine (Cardiovascular Disease)
55 FRUIT ST
BOSTON, MA 02114

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 Catherine Nowak's NPI number?

The NPI number for Catherine Nowak is 1053393470. It was assigned to this individual provider in the NPPES registry on November 20, 2005. The provider is also known as Dr. Catherine B Nowak M.D..

Where is Catherine Nowak located?

Catherine Nowak practices at 55 Fruit St, Boston, MA 02114. The listed phone number is (617) 726-1742.

What is Catherine Nowak's specialty?

The primary specialty registered for this NPI is Medical Genetics, specializing in Clinical Genetics (M.D.), with taxonomy code 207SG0201X.

Is Catherine Nowak enrolled in Medicare?

Yes. Catherine Nowak 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 organizations bill Medicare for Catherine Nowak's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Catherine Nowak reassigns Medicare benefits to 3 organizations: The General Hospital Corporation (Boston, MA), Massachusetts General Physicians Organization Inc (Boston, MA) and The Shriners' Hospital For Children (Boston, MA). 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 Catherine Nowak's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Catherine Nowak accept?

Health plans from AmeriHealth Caritas Next and Taro Health list Catherine Nowak 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 Catherine Nowak was last updated on October 12, 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.