DR. MARILYN M HENG MD, MPH
NPI 1386903805
Orthopaedic Surgery - Orthopaedic Trauma in Brighton, MA

Active since May 04, 2012PECOS EnrolledAccepts Medicare Assignment
736 CAMBRIDGE ST, BRIGHTON, MA 02135(617) 789-3000 Get Directions Write a Review

NPPES record last updated: August 11, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Aug 11, 2026, Mar 13, 2025, Oct 6, 2022 and 1 more (4 updates tracked since 2019).

About Dr. Marilyn M Heng Md, Mph NPPES

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

DR. MARILYN M HENG MD, MPH (NPI 1386903805) is an individual orthopaedic trauma provider in Brighton, Massachusetts, licensed in Massachusetts (250187) and active in the NPI registry since May 2012. She is enrolled in Medicare PECOS, is affiliated with St Elizabeth's Medical Center, and maintains a secondary practice location in Rockford.

NPPES Registry Identity

NPI1386903805
Entity TypeIndividualFemale
Primary Taxonomy207XX0801X
Provider Legal NameDR. MARILYN M HENGCredential: MD, MPH
Location Address736 CAMBRIDGE STBrighton, MA 02135-2907
Mailing Address736 Cambridge StBrighton, MA 02135-2907
Sole ProprietorNo
Medical School CMSOtherGraduated 2007
Enumeration DateMay 4, 2012
Last NPPES UpdateAugust 11, 20264 updates tracked since enumeration
NPPES CertifiedAugust 11, 2026
✔ NPI 1386903805 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyOrthopaedic Surgery · Orthopaedic TraumaAllopathic & Osteopathic Physicians
Taxonomy Code207XX0801X
Licenses✔ Licensed in MA · 250187✔ Licensed in FL · ME158401
Definition
Recognized by several state medical boards as a fellowship subspecialty program of orthopaedic surgery, orthopaedic trauma surgeons deal with the evaluation and management of acute orthopaedic injuries, evaluation and treatment of post-traumatic deformities and nonunions, acute and delayed reconstruction of pelvic and acetabular fractures, as well as osteotomy in the adult hip for treatment of hip arthritis.
Also ListedOrthopaedic SurgeryTaxonomy 207X00000X · License 036181604 (IL)
736 CAMBRIDGE ST, Brighton, MA 02135

Other Names 1

Professional Name (2)Marilyn Heng Md

Secondary Practice Location 1

Location 15875 E Riverside BlvdRockford, IL 61114-4937 · Phone (815) 398-9491 · Fax (815) 381-7498

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. Marilyn M Heng Md, Mph 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 ID6002067782
PECOS Enrollment IDI20121105000621
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

7

Medicare enrollment records show Marilyn Heng reassigns Medicare billing to 7 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Internal Medicine
75 FRANCIS ST
Boston, MA 02115
  • Reassigned Medicare billing, Massachusetts enrollment
  • 4,574 clinicians in this Medicare group
Internal Medicine
1 BOSTON MEDICAL CENTER PLACE
Boston, MA 02118
  • Reassigned Medicare billing, Massachusetts enrollment
  • 716 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
Internal Medicine
1 PEARL ST STE 2100
Brockton, MA 02301
  • Reassigned Medicare billing, Massachusetts enrollment
  • 264 clinicians in this Medicare group
Orthopaedic Surgery
324 ROXBURY RD
Rockford, IL 61107
  • Reassigned Medicare billing, Illinois enrollment
  • 562 clinicians in this Medicare group
Ambulatory Surgical
7103 FAIRWAY DR
Palm Beach Gardens, FL 33418
  • Reassigned Medicare billing, Florida enrollment
  • 3,639 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.

Areas of Expertise CMS Part B claims 2

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
21 services12 patients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
12 services12 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

St Elizabeth's Medical Center

Acute Care Hospitals · Brighton, MA
2/5 CMS rating
OwnershipProprietary
CMS Certification Number220036
Location736 Cambridge StreetBrighton, MA 02135 · Suffolk County
Emergency services Birthing friendly

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 Marilyn Heng's NPI number?

The NPI number for Marilyn Heng is 1386903805. It was assigned to this individual provider in the NPPES registry on May 4, 2012. The provider is also known as Marilyn Heng MD.

Where is Marilyn Heng located?

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

What is Marilyn Heng's specialty?

The primary specialty registered for this NPI is Orthopaedic Surgery, specializing in Orthopaedic Trauma, with taxonomy code 207XX0801X.

Is Marilyn Heng enrolled in Medicare?

Yes. Marilyn Heng 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 Marilyn Heng's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Marilyn Heng reassigns Medicare benefits to 7 organizations: Brigham & Womens Physicians Organization Inc (Boston, MA), Bmc Affiliated Physicians, Inc. (Boston, MA), The General Hospital Corporation (Boston, MA), Massachusetts General Physicians Organization Inc (Boston, MA), Revere Medical Of Massachusetts, PC (Brockton, MA) and 2 more organizations, listed in the Medicare section above. 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 Marilyn Heng's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Marilyn Heng accept?

Health plans from WellSense Health Plan list Marilyn Heng 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.

Is Marilyn Heng affiliated with any hospitals?

According to CMS data, Marilyn Heng is affiliated with St Elizabeth's Medical Center.

When was this NPI record last updated?

The NPPES record for Marilyn Heng was last updated on August 11, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.