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DR. MEGAN THERESA KEENAN M.D.
NPI 1558649145
Pediatrics in Boston, MA

Active since July 29, 2011PECOS Enrolled

NPPES record last updated: September 3, 2025. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Sep 3, 2025, Sep 5, 2022 (2 updates tracked since 2022).

About Dr. Megan Theresa Keenan M.d. NPPES

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

DR. MEGAN THERESA KEENAN M.D. (NPI 1558649145) is an individual pediatrics provider in Boston, Massachusetts, licensed in New York (272474) and active in the NPI registry since July 2011. She is enrolled in Medicare PECOS and maintains a secondary practice location in Milford.

NPPES Registry Identity

NPI1558649145
Entity TypeIndividualFemale
Primary Taxonomy208000000X
Provider Legal NameDR. MEGAN THERESA KEENANCredential: M.D.
Location Address55 FRUIT STBoston, MA 02114-2696
Mailing Address1301 57th StBrooklyn, NY 11219-4636 · (718) 283-3640 · Fax (718) 283-3602
Phone(617) 724-9040
Sole ProprietorNo
Enumeration DateJuly 29, 2011
Last NPPES UpdateSeptember 3, 20252 updates tracked since enumeration
NPPES CertifiedSeptember 3, 2025
✔ NPI 1558649145 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians
Taxonomy Code208000000X
Licenses✔ Licensed in NY · 272474✔ Licensed in MA · 290231
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.
55 FRUIT ST, Boston, MA 02114
Open in Google Maps ↗

Secondary Practice Location 1

Location 1229 E Main StMilford, MA 01757-2832 · Phone (508) 634-7333 · Fax (508) 482-5436

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield.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. Megan Theresa Keenan 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 Reassignments

3

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

Massachusetts General Physicians Organization Inc
Same address
Dermatology
55 FRUIT ST, BUL 2
Boston, MA 02114
  • Reassigned Medicare billing, Massachusetts enrollment
  • 6,360 clinicians in this Medicare group
NPI 1801874573 (617) 724-0287
The General Hospital Corporation
Same address
General Acute Care Hospital
55 FRUIT ST, BULFINCH 360
Boston, MA 02114
  • Reassigned Medicare billing, Massachusetts enrollment
  • 6,234 clinicians in this Medicare group
NPI 1023049236 (617) 726-2000
Umass Memorial Medical Group Inc
36 mi
Internal Medicine
55 LAKE AVE N
Worcester, MA 01655
  • Reassigned Medicare billing, Massachusetts enrollment
  • 2,902 clinicians in this Medicare group
NPI 1760445373 (508) 334-1000

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 02114 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.

STUTI GIRISH SHROFF MD, MBBS
Pathology (Anatomic Pathology)
55 FRUIT ST
BOSTON, MA 02114
Suffolk County (617) 726-2971
NANCY WANG M.D.
Internal Medicine (Hematology & Oncology)
55 FRUIT ST
BOSTON, MA 02114
Suffolk County (017) 724-4000
DR. DUSAN HANIDZIAR M.D., PH.D.
Anesthesiology
55 FRUIT ST, GRAY-BIGELOW 444
BOSTON, MA 02114
Suffolk County (617) 726-3030
JOHN JOSEPH DANKO DO
Physical Medicine & Rehabilitation
55 FRUIT ST
BOSTON, MA 02114
Suffolk County (617) 726-2000
DR. MICHAEL ANDREW LOBRITZ M.D, PH.D.
Internal Medicine (Infectious Disease)
55 FRUIT ST, DIVISION OF INFECTIOUS DISEASE, GRJ-504
BOSTON, MA 02114
Suffolk County (617) 724-9248
MS. KELLY ELISHA TRECARTIN NP
Nurse Practitioner (Acute Care)
55 FRUIT ST, BIGALOW 852 F
BOSTON, MA 02114
Suffolk County (617) 726-7400
JAMIE MARIE ALLEN NP
Nurse Practitioner
55 FRUIT ST
BOSTON, MA 02114
Suffolk County (617) 724-4410
DR. DHAVAL SANJEEV KOLTE M.B.B.S., PH.D.
Internal Medicine (Cardiovascular Disease)
55 FRUIT ST
BOSTON, MA 02114
Suffolk County (617) 643-3238

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 Megan Keenan's NPI number?

The NPI number for Megan Keenan is 1558649145. It was assigned to this individual provider in the NPPES registry on July 29, 2011.

Where is Megan Keenan located?

Megan Keenan practices at 55 Fruit St, Boston, MA 02114. The listed phone number is (617) 724-9040.

What is Megan Keenan's specialty?

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

Is Megan Keenan enrolled in Medicare?

Yes. Megan Keenan is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Megan Keenan's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Megan Keenan reassigns Medicare benefits to 3 organizations: Massachusetts General Physicians Organization Inc (Boston, MA), The General Hospital Corporation (Boston, MA) and Umass Memorial Medical Group Inc (Worcester, 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 Megan Keenan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Megan Keenan accept?

Health plans from Anthem Blue Cross and Blue Shield list Megan Keenan 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 Megan Keenan was last updated on September 3, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.