Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

MARIANNA S. PARKER MBBS
NPI 1972862068
Pediatrics - Neonatal-Perinatal Medicine in Brighton, MA

Active since May 09, 2012PECOS Enrolled
736 CAMBRIDGE ST, BRIGHTON, MA 02135(617) 789-3000 Get Directions Write a Review

NPPES record last updated: September 14, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Sep 14, 2026, Jun 28, 2018 (2 updates tracked since 2018).

About Marianna S. Parker Mbbs NPPES

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

MARIANNA S. PARKER MBBS (NPI 1972862068) is an individual neonatal-perinatal medicine provider in Brighton, Massachusetts, licensed in Massachusetts (267042) and active in the NPI registry since May 2012. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1972862068
Entity TypeIndividualFemale
Primary Taxonomy2080N0001X
Provider Legal NameMARIANNA S. PARKERCredential: MBBS
Location Address736 CAMBRIDGE STBrighton, MA 02135-2907
Mailing Address960 Massachusetts Ave Ste 2Boston, MA 02118-2690
Sole ProprietorNo
Enumeration DateMay 9, 2012
Last NPPES UpdateSeptember 14, 20262 updates tracked since enumeration
NPPES CertifiedSeptember 14, 2026
✔ NPI 1972862068 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPediatrics · Neonatal-Perinatal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code2080N0001X
License✔ Licensed in MA · 267042
Definition
A pediatrician who is the principal care provider for sick newborn infants. Clinical expertise is used for direct patient care and for consulting with obstetrical colleagues to plan for the care of mothers who have high-risk pregnancies.
Also ListedPediatricsTaxonomy 208000000X · License 267042 (MA)
736 CAMBRIDGE ST, Brighton, MA 02135

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Marianna S. Parker Mbbs 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

5

Medicare enrollment records show Marianna Parker reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Specialist
9 GALEN ST
Watertown, MA 02472
  • Reassigned Medicare billing, Massachusetts enrollment
  • 1,103 clinicians in this Medicare group
General Acute Care Hospital
1493 CAMBRIDGE ST
Cambridge, MA 02139
  • Reassigned Medicare billing, Massachusetts enrollment
  • 719 clinicians in this Medicare group
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
Pediatrics
800 WASHINGTON ST, BOX 1013
Boston, MA 02111
  • Reassigned Medicare billing, Massachusetts enrollment
  • 202 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.

Internal Medicine
736 CAMBRIDGE ST, INTERNAL MEDICINE RESIDENCY PROGRAM - MAILBOX #13
BOSTON, MA 02135
Internal Medicine (Cardiovascular Disease)
736 CAMBRIDGE ST, DEPT. OF CARDIOLOGY
BRIGHTON, MA 02135
Psychiatry & Neurology (Psychiatry)
736 CAMBRIDGE ST
BRIGHTON, MA 02135
Student in an Organized Health Care Education/Training Program
736 CAMBRIDGE ST
BOSTON, MA 02135
Student in an Organized Health Care Education/Training Program
736 CAMBRIDGE ST
BRIGHTON, MA 02135
Student in an Organized Health Care Education/Training Program
736 CAMBRIDGE ST
BRIGHTON, MA 02135
Internal Medicine (Nephrology)
736 CAMBRIDGE ST, ST ELIZABETHS MED CTR
BOSTON, MA 02135
Pathology (Anatomic Pathology & Clinical Pathology)
736 CAMBRIDGE ST
BRIGHTON, MA 02135

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 Marianna Parker's NPI number?

The NPI number for Marianna Parker is 1972862068. It was assigned to this individual provider in the NPPES registry on May 9, 2012.

Where is Marianna Parker located?

Marianna Parker practices at 736 Cambridge St, Brighton, MA 02135. The listed phone number is (617) 789-3000.

What is Marianna Parker's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Neonatal-Perinatal Medicine, with taxonomy code 2080N0001X.

Is Marianna Parker enrolled in Medicare?

Yes. Marianna Parker is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Marianna Parker's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Marianna Parker reassigns Medicare benefits to 5 organizations: Steward Medical Group, Inc (Watertown, MA), Cambridge Public Health Commission (Cambridge, MA), The General Hospital Corporation (Boston, MA), Massachusetts General Physicians Organization Inc (Boston, MA) and Pratt Pediatric Associates Inc (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 Marianna Parker'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 Marianna Parker was last updated on September 14, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 39 days 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.