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GREGORY PETER WESTCOTT M.D.
NPI 1548672116
Internal Medicine - Endocrinology, Diabetes & Metabolism in Boston, MA

Active since May 29, 2014PECOS EnrolledAccepts Medicare Assignment
110 FRANCIS ST, BOSTON, MA 02215(617) 667-9344 Get Directions Write a Review

NPPES record last updated: May 20, 2020. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Gregory Peter Westcott M.d. NPPES

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

GREGORY PETER WESTCOTT M.D. (NPI 1548672116) is an individual endocrinology, diabetes & metabolism provider in Boston, Massachusetts, licensed in Massachusetts (270034) and active in the NPI registry since May 2014. He is enrolled in Medicare PECOS and is a graduate of Other (2014).

NPPES Registry Identity

NPI1548672116
Entity TypeIndividualMale
Primary Taxonomy207RE0101X
Provider Legal NameGREGORY PETER WESTCOTTCredential: M.D.
Location Address110 FRANCIS STBoston, MA 02215-5501
Mailing Address330 Brookline Avenue, Gz 6, Division Of EndocrinologyBoston, MA 02215-5491 · (617) 667-9334
Phone(617) 667-9344
Sole ProprietorYes
Medical School CMSOtherGraduated 2014
Enumeration DateMay 29, 2014
Last NPPES UpdateMay 20, 2020
NPPES CertifiedMay 20, 2020
✔ NPI 1548672116 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Endocrinology, Diabetes & MetabolismAllopathic & Osteopathic Physicians
Taxonomy Code207RE0101X
License✔ Licensed in MA · 270034
Definition
An internist who concentrates on disorders of the internal (endocrine) glands such as the thyroid and adrenal glands. This specialist also deals with disorders such as diabetes, metabolic and nutritional disorders, obesity, pituitary diseases and menstrual and sexual problems.
110 FRANCIS ST, Boston, MA 02215
Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include 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 and accepts Medicare assignment

Gregory Peter Westcott 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 ID2668771163
PECOS Enrollment IDI20200608002829
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 Gregory Westcott reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Joslin Clinic Inc
0.1 mi
Multi-Specialty
1 JOSLIN PL
Boston, MA 02215
  • Reassigned Medicare billing, Massachusetts enrollment
  • 125 clinicians in this Medicare group
NPI 1528003621 (617) 732-2501
Beth Israel Deaconess Medical Center, Inc.
0.3 mi
General Acute Care Hospital
330 BROOKLINE AVE, ST 207
Boston, MA 02215
  • Reassigned Medicare billing, Massachusetts enrollment
  • 1,477 clinicians in this Medicare group
NPI 1548202641 (617) 667-1961
Harvard Medical Faculty Phys At Beth Israel Deaconess Med Ctr Inc
0.3 mi
Internal Medicine
330 BROOKLINE AVE
Boston, MA 02215
  • Reassigned Medicare billing, Massachusetts enrollment
  • 2,579 clinicians in this Medicare group
NPI 1194765438 (617) 754-9600

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 4

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.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
54 services28 patients
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222
Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.
31 services30 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
24 services24 patients
Continuous monitoring of blood sugar level in tissue fluid using sensor under skin with interpretation and report 95251
This procedure involves placing a small sensor under your skin to continuously monitor your blood sugar levels in tissue fluid. The data is interpreted and a report is generated to help manage your diabetes more effectively.
14 services14 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 02215 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
$144.11 typical visit price
range $63.72 – $189.86
Typical copayment $36.02 (range $15.93 – $47.46)
Most-billed visit code 99204
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.

Referred Medical Equipment & Supplies CMS DME claims

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Supply allowance for therapeutic continuous glucose monitor (cgm), includes all supplies and accessories, 1 month supply = 1 unit of service K0553
DME-Other DME · category DE017N
6 suppliers88 claims88 services$186.43 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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 ELIZABETH CHOUINARD PA-C
Physician Assistant (Surgical)
110 FRANCIS ST
BOSTON, MA 02215
Suffolk County (617) 632-7246
DR. DAE HYUN KIM M.D., M.P.H.
Internal Medicine (Geriatric Medicine)
110 FRANCIS ST, LMOB SUITE 1A
BOSTON, MA 02215
Suffolk County (617) 632-8696
ZIV PAZ M.D.
Internal Medicine (Rheumatology)
110 FRANCIS ST
BOSTON, MA 02215
Suffolk County (617) 632-8658
DR. DONICA TOSCANO PORTER AU.D.
Audiologist
110 FRANCIS ST, LOWRY BUILDING 6-E
BOSTON, MA 02215
Suffolk County (617) 632-7310
DR. DAVID SHOUKRY YASSA M.D
Internal Medicine (Infectious Disease)
110 FRANCIS ST, LOWRY BUILDING SUITE GB
BOSTON, MA 02215
Suffolk County (617) 632-7706
SUSAN E KELLY M.D.
Internal Medicine (Gastroenterology)
110 FRANCIS ST, SUITE 8E
BOSTON, MA 02215
Suffolk County (617) 632-8623
JULES R SCHWABER M.D.
Internal Medicine (Pulmonary Disease)
110 FRANCIS ST, SUITE 1B
BOSTON, MA 02215
Suffolk County (617) 632-0500
LORI ANN PANTHER M.D., M.P.H.
Internal Medicine (Infectious Disease)
110 FRANCIS ST, LMOB SUITE G-B
BOSTON, MA 02215
Suffolk County (617) 632-7706

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 Gregory Westcott's NPI number?

The NPI number for Gregory Westcott is 1548672116. It was assigned to this individual provider in the NPPES registry on May 29, 2014.

Where is Gregory Westcott located?

Gregory Westcott practices at 110 Francis St, Boston, MA 02215. The listed phone number is (617) 667-9344.

What is Gregory Westcott's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Endocrinology, Diabetes & Metabolism, with taxonomy code 207RE0101X.

Is Gregory Westcott enrolled in Medicare?

Yes. Gregory Westcott 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 Gregory Westcott's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Gregory Westcott reassigns Medicare benefits to 3 organizations: Joslin Clinic Inc (Boston, MA), Beth Israel Deaconess Medical Center, Inc. (Boston, MA) and Harvard Medical Faculty Phys At Beth Israel Deaconess Med Ctr 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 Gregory Westcott's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Gregory Westcott accept?

Health plans from Taro Health list Gregory Westcott 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 Gregory Westcott was last updated on May 20, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.