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WILLIAM M SULLIVAN M.D.
NPI 1922107234
Internal Medicine - Endocrinology, Diabetes & Metabolism in Boston, MA

Active since September 22, 2006PECOS EnrolledAccepts Medicare Assignment
JOSLIN DIABETES CENTER, ONE JOSLIN PLACE, BOSTON, MA 02215(617) 732-2645 Get Directions Write a Review

NPPES record last updated: November 28, 2011. Verified against the NPPES registry weekly; last sync: October 04, 2026.

About William M Sullivan M.d. NPPES

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

WILLIAM M SULLIVAN M.D. (NPI 1922107234) is an individual endocrinology, diabetes & metabolism provider in Boston, Massachusetts, licensed in Massachusetts (72821) and active in the NPI registry since September 2006. He is enrolled in Medicare PECOS, is affiliated with Beth Israel Deaconess Medical Center, and is a graduate of Georgetown University School Of Medicine (1980).

NPPES Registry Identity

NPI1922107234
Entity TypeIndividualMale
Primary Taxonomy207RE0101X
Provider Legal NameWILLIAM M SULLIVANCredential: M.D.
Location AddressJOSLIN DIABETES CENTER, ONE JOSLIN PLACEBoston, MA 02215
Mailing AddressJoslin Clinic, Inc, One Joslin PlaceBoston, MA 02215-5304 · (617) 732-2645
Phone(617) 732-2645
Sole ProprietorNo
Medical School CMSGeorgetown University School Of MedicineGraduated 1980
Enumeration DateSeptember 22, 2006
Last NPPES UpdateNovember 28, 2011
✔ NPI 1922107234 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 · 72821
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.
JOSLIN DIABETES CENTER, Boston, MA 02215
Open in Google Maps ↗

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, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

William M Sullivan 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 ID4981651569
PECOS Enrollment IDI20050406000035
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.

Areas of Expertise CMS Part B claims 5

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.
446 services292 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.
287 services196 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.
40 services30 patients
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
27 services27 patients
Telephone medical discussion with physician, 21-30 minutes 99443
This service involves a 21-30 minute phone conversation with a physician. It's a chance for you to discuss your health concerns, symptoms or treatment plans. It's similar to an in-person consultation, but conducted over the phone for your convenience and safety.
18 services17 patients

Hospital Affiliations CMS Care Compare

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

Beth Israel Deaconess Medical Center

Acute Care Hospitals · Boston, MA
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number220086
Location330 Brookline AvenueBoston, MA 02215 · Suffolk County
Emergency services Birthing friendly

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 8

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

Supplies for maintenance of insulin infusion catheter, per week A4224
DME-Other DME · category DE017N
11 suppliers83 claims1,020 services$18.11 avg. paid by Medicare
Supplies for external insulin infusion pump, syringe type cartridge, sterile, each A4225
DME-Other DME · category DE017N
10 suppliers83 claims2,435 services$2.28 avg. paid by Medicare
Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253
DME-Other DME · category DE017N
120 suppliers365 claims1,402 services$6.01 avg. paid by Medicare
Lancets, per box of 100 A4259
DME-Medical/Surgical Supplies · category DA000N
54 suppliers127 claims278 services$1.02 avg. paid by Medicare
External ambulatory infusion pump, insulin E0784
DME-Other DME · category DE017N
5 suppliers64 claims64 services$299.84 avg. paid by Medicare
Insulin for administration through dme (i.e., insulin pump) per 50 units J1817
Treatment-Injections and Infusions (nononcologic) · category RI000N
16 suppliers56 claims5,560 services$6.92 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 6

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

SUDHA BIDDINGER M.D.
Pediatrics (Pediatric Endocrinology)
JOSLIN DIABETES CENTER, 1 JOSLIN PLACE
BOSTON, MA 02215
Suffolk County (617) 732-2400
AUGUSTO E CABALLERO-ROBLES M.D.
Internal Medicine (Endocrinology, Diabetes & Metabolism)
JOSLIN DIABETES CENTER, ONE JOSLIN PLACE
BOSTON, MA 02215
Suffolk County (617) 226-5914
TIHAMER ORBAN M.D.
Pediatrics (Pediatric Endocrinology)
JOSLIN DIABETES CENTER, ONE JOSLIN PLACE
BOSTON, MA 02215
Suffolk County (617) 713-3442
FLORENCE MAVIS BROWN M.D.
Internal Medicine (Endocrinology, Diabetes & Metabolism)
JOSLIN DIABETES CENTER, 1 JOSLIN PLACE
BOSTON, MA 02215
Suffolk County (617) 732-2695
CHRISTINE M TURCOTTE CPNP
Nurse Practitioner (Pediatrics)
JOSLIN DIABETES CENTER, 330 BROOKLINE AVE ATTN: CHRISTINE TURCOTTE, SH-2
BOSTON, MA 02215
Suffolk County (617) 309-2400
C R KAHN M.D.
Internal Medicine (Endocrinology, Diabetes & Metabolism)
JOSLIN DIABETES CENTER, 1 JOSLIN PLACE
BOSTON, MA 02215
Suffolk County (617) 732-2635

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 William Sullivan's NPI number?

The NPI number for William Sullivan is 1922107234. It was assigned to this individual provider in the NPPES registry on September 22, 2006.

Where is William Sullivan located?

William Sullivan practices at Joslin Diabetes Center One Joslin Place, Boston, MA 02215. The listed phone number is (617) 732-2645.

What is William Sullivan's specialty?

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

Is William Sullivan enrolled in Medicare?

Yes. William Sullivan 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.

What insurance does William Sullivan accept?

Health plans from Anthem Blue Cross and Blue Shield list William Sullivan 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 William Sullivan affiliated with any hospitals?

According to CMS data, William Sullivan is affiliated with Beth Israel Deaconess Medical Center.

When was this NPI record last updated?

The NPPES record for William Sullivan was last updated on November 28, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.