JAMES A WARSHAW MD, PHD
NPI 1356306211
Internal Medicine - Endocrinology, Diabetes & Metabolism in Taunton, MA

Q: What is James Warshaw's NPI number?

The NPI number for James Warshaw is 1356306211. It was assigned to this individual provider in the NPPES registry on April 20, 2006.

Q: What is James Warshaw's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for James Warshaw was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.

Active since April 20, 2006PECOS EnrolledAccepts Medicare Assignment

2005 BAY ST, SUITE 204B, TAUNTON, MA 02780(508) 821-9400(508) 821-9151 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: November 08, 2026.

On this page

About James A Warshaw Md, Phd NPPES

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

JAMES A WARSHAW MD, PHD (NPI 1356306211) is an individual endocrinology, diabetes & metabolism provider in Taunton, Massachusetts, licensed in Massachusetts (79137) and active in the NPI registry since April 2006. He is enrolled in Medicare PECOS and is a graduate of Boston University School Of Medicine (1992).

NPPES Registry Identity

NPI1356306211

Entity TypeIndividualMale

Primary Taxonomy207RE0101X

Provider Legal NameJAMES A WARSHAWCredential: MD, PHD

Location Address2005 BAY ST, SUITE 204BTaunton, MA 02780-1085

Mailing Address2005 Bay St, Suite 204bTaunton, MA 02780-1085 · (508) 821-9400 · Fax (508) 821-9151

Phone(508) 821-9400

Fax(508) 821-9151

Sole ProprietorNo

Medical School CMSBoston University School Of MedicineGraduated 1992

Enumeration DateApril 20, 2006

Last NPPES UpdateJuly 13, 2026

✔ NPI 1356306211 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 · 79137

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.

2005 BAY ST, Taunton, MA 02780

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Other Identifiers 1

Medicaid3160378MA

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

James A Warshaw Md, Phd 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 ID1850334590

PECOS Enrollment IDI20160921000605

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

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

Ajay 28 LLC

166 mi

Clinic/Center

6860 AUSTIN ST
Forest Hills, NY 11375

Reassigned Medicare billing, New York enrollment
37 clinicians in this Medicare group

NPI 1609342898 (718) 997-7100

Weill Medical College Of Cornell

169 mi

Endocrinology, Diabetes & Metabolism

525 E 68TH ST, BAKER BUILDING 20TH FLOOR
New York, NY 10065

Reassigned Medicare billing, New York enrollment
70 clinicians in this Medicare group

NPI 1417071945 (212) 746-1503

Premier Healthcare, Inc.

170 mi

Developmental Disabilities

227 EAST 41ST STREET, 8TH FLOOR
New York, NY 10017

Reassigned Medicare billing, New York enrollment
163 clinicians in this Medicare group

NPI 1760436190 (212) 273-6272

Parcare Community Health Network Inc

172 mi

Multi-Specialty

445 PARK AVE
Brooklyn, NY 11205

Reassigned Medicare billing, New York enrollment
193 clinicians in this Medicare group

NPI 1730454083 (718) 963-0800

Dialog Healthcare, LLC

375 mi

Nurse Practitioner

1235 POTOMAC VALLEY RD
Rockville, MD 20850

Reassigned Medicare billing, New York enrollment
9 clinicians in this Medicare group

NPI 1235729153 (443) 929-1569

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 6

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 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.

64 services26 patients

Telephone medical discussion with physician, 11-20 minutes 99442

This is a service where you have a phone conversation with your doctor for 11-20 minutes. It's used for discussing health concerns, reviewing test results, or managing ongoing conditions. It's a convenient way to receive medical advice without an in-person visit.

62 services31 patients

Insertion of needle into vein for collection of blood sample 36415

This procedure involves inserting a small needle into a vein, typically in your arm, to collect a blood sample. It's a quick and simple process to help diagnose or monitor health conditions. You may feel a small prick, but discomfort is minimal.

56 services32 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

18 services18 patients

New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203

This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.

17 services17 patients

Ultrasound scan of head and neck soft tissue 76536

An ultrasound scan of the head and neck soft tissue is a non-invasive procedure that uses sound waves to create images of the soft tissues in these areas. It helps identify any abnormalities or issues, such as tumors, cysts, or infections. It's painless and doesn't involve radiation.

13 services12 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 02780 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

$134.47 typical visit price

range $58.86 – $177.36

Typical copayment $33.61 (range $14.71 – $44.34)

Most-billed visit code 99204

Established Patient

$103.48 typical visit price

range $19.11 – $144.84

Typical copayment $25.87 (range $4.77 – $36.21)

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

4 suppliers21 claims21 services$155.23 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.

ANDREA WASYLOW PT/ATC/LAT

Specialist/Technologist (Athletic Trainer)

2005 BAY ST
TAUNTON, MA 02780

Bristol County (508) 828-7265

MARINA FREYMAN NP

Nurse Practitioner

2005 BAY ST, SUITE 204B
TAUNTON, MA 02780

Bristol County (508) 821-9400

TERRI A. SULLIVAN N.P.

Nurse Practitioner (Occupational Health)

2005 BAY ST
TAUNTON, MA 02780

Bristol County (508) 824-0243

DR. SUSAN S LIANG

Ophthalmology (Glaucoma Specialist)

2005 BAY ST, SUITE 201
TAUNTON, MA 02780

Bristol County (508) 823-7473

MORTON PHYSICIAN ASSOCIATES, INC

Internal Medicine

2005 BAY ST, SUITE 203
TAUNTON, MA 02780

Bristol County (508) 824-1280

DONNA SIRACUSE-LEE MD

Ophthalmology

2005 BAY ST, SUITE 201
TAUNTON, MA 02780

Bristol County (508) 823-7473

ROY MAURICE POSES M.D.

Internal Medicine

2005 BAY ST, SUITE 206
TAUNTON, MA 02780

Bristol County (508) 822-2266

MRS. NANCY A MCHUGH PA-C

Physician Assistant

2005 BAY ST
TAUNTON, MA 02780

Bristol County (508) 824-0243

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 James Warshaw's NPI number?

The NPI number for James Warshaw is 1356306211. It was assigned to this individual provider in the NPPES registry on April 20, 2006.

Where is James Warshaw located?

James Warshaw practices at 2005 Bay St Suite 204B, Taunton, MA 02780. The listed phone number is (508) 821-9400.

What is James Warshaw's specialty?

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

Is James Warshaw enrolled in Medicare?

Yes. James Warshaw 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 James Warshaw's services?

According to the CMS Revalidation Reassignment List (October 2026 release), James Warshaw reassigns Medicare benefits to 5 organizations: Ajay 28 LLC (Forest Hills, NY), Weill Medical College Of Cornell (New York, NY), Premier Healthcare, Inc. (New York, NY), Parcare Community Health Network Inc (Brooklyn, NY) and Dialog Healthcare, LLC (Rockville, MD). 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 James Warshaw'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 James Warshaw was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.