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DR. MARK WILLIAM COHEN M.D.
NPI 1396730818
Pediatrics in Acton, MA

Active since September 12, 2005PECOS Enrolled
321 MAIN ST, ACTON, MA 01720(978) 635-8700(978) 635-8920 Get Directions Write a Review

NPPES record last updated: October 16, 2014. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Dr. Mark William Cohen M.d. NPPES

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

DR. MARK WILLIAM COHEN M.D. (NPI 1396730818) is an individual pediatrics provider in Acton, Massachusetts, licensed in Massachusetts (49067) and active in the NPI registry since September 2005. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1396730818
Entity TypeIndividualMale
Primary Taxonomy208000000X
Provider Legal NameDR. MARK WILLIAM COHENCredential: M.D.
Location Address321 MAIN STActon, MA 01720-3718
Mailing Address321 Main StActon, MA 01720-3718 · (978) 635-8700 · Fax (978) 635-8920
Phone(978) 635-8700
Fax(978) 635-8920
Sole ProprietorNo
Enumeration DateSeptember 12, 2005
Last NPPES UpdateOctober 16, 2014
✔ NPI 1396730818 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians
Taxonomy Code208000000X
License✔ Licensed in MA · 49067
Definition
A pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectrum of health services ranging from preventive healthcare to the diagnosis and treatment of acute and chronic diseases. A pediatrician deals with biological, social and environmental influences on the developing child, and with the impact of disease and dysfunction on development.
321 MAIN ST, Acton, MA 01720
Open in Google Maps ↗

Other Identifiers 1

Other49067MA · State License

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, Taro 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)

Dr. Mark William Cohen 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 Mark Cohen reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Acton Medical Associates, PC
Same address
Internal Medicine
321 MAIN ST
Acton, MA 01720
  • Reassigned Medicare billing, Massachusetts enrollment
  • 55 clinicians in this Medicare group
NPI 1447365408 (978) 635-8801

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 01720 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
$97.64 typical visit price
range $63.72 – $189.86
Typical copayment $24.41 (range $15.93 – $47.46)
Most-billed visit code 99203
Established Patient
$111.18 typical visit price
range $21.07 – $155.29
Typical copayment $27.79 (range $5.26 – $38.82)
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.

GRACE WATERHOUSE NP
Nurse Practitioner (Adult Health)
321 MAIN ST
ACTON, MA 01720
Middlesex County (978) 635-8700
NADIA TIKHOMIROVA NP
Nurse Practitioner (Family)
321 MAIN ST
ACTON, MA 01720
Middlesex County (978) 635-8700
AMY CHURCHILL MD
Internal Medicine
321 MAIN ST
ACTON, MA 01720
Middlesex County (978) 263-1131
DR. PETER JAMES DEMARTINO M.D.
Internal Medicine
321 MAIN ST
ACTON, MA 01720
Middlesex County (978) 263-1425
TELI LEUNG-GALECKI M.D.
Internal Medicine
321 MAIN ST
ACTON, MA 01720
Middlesex County (978) 635-8700
DR. INGRID GORMAN M.D.
Internal Medicine
321 MAIN ST
ACTON, MA 01720
Middlesex County (978) 263-1131
KRISTY P SMITH
Nurse Practitioner (Family)
321 MAIN ST
ACTON, MA 01720
Middlesex County (978) 263-0680
MS. TIFFANY MCNAMARA CNP-P
Nurse Practitioner (Pediatrics)
321 MAIN ST
ACTON, MA 01720
Middlesex County (978) 635-8700

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 Mark Cohen's NPI number?

The NPI number for Mark Cohen is 1396730818. It was assigned to this individual provider in the NPPES registry on September 12, 2005.

Where is Mark Cohen located?

Mark Cohen practices at 321 Main St, Acton, MA 01720. The listed phone number is (978) 635-8700.

What is Mark Cohen's specialty?

The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.

Is Mark Cohen enrolled in Medicare?

Yes. Mark Cohen is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Mark Cohen's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mark Cohen reassigns Medicare benefits to Acton Medical Associates, PC (Acton, MA). 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 Mark Cohen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Mark Cohen accept?

Health plans from Anthem Blue Cross and Blue Shield and Taro Health list Mark Cohen 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 Mark Cohen was last updated on October 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.