WILLIAM D. HOFFMAN (MD) – Anesthesiology Physician, NPI 1619968740

WILLIAM D. HOFFMAN (MD) is a healthcare provider. based in Boston, Massachusetts. specializing in ANESTHESIOLOGY, CRITICAL CARE (INTENSIVISTS). They hold the professional credentials MD. They hold a License No. 52013 (MA). The NPI Number for WILLIAM D. HOFFMAN (MD) is 1619968740

Main info

Male
44 Years Of Experience
Accepts Medicare Assignment
Name
WILLIAM D. HOFFMAN (MD)
NPI
1619968740
Phone
Not provided
Address
PO BOX 415348
Enumeration Date
28 October 2005
Last Update Date
24 November 2020

Doctor Profile

Medical School Name
UNIVERSITY OF MASSACHUSETTS MEDICAL SCHOOL
Secondary Phone
5083341000
Graduation Year
1982 (44 years ago)
PAC ID
7012992373
Group Practice PAC ID
4284539891
Professional Enrollment ID
I20040621001526
Address ID
MA016550002WO55XXXNXXX400

Contacts

Secure Messaging
whoffman12049@UmassMemorial.direct-ci.com
FHIR Endpoint
https://epicproxy.et0978.epichosted.com/FHIRProxy/api/FHIR/DSTU2/
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience69
Completeness85
Years active:20State licenses:1Other namesUpdated within 12 months

2,323 ANESTHESIOLOGY in MA

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Provider Addresses for WILLIAM D. HOFFMAN (MD)

  • PO Box 846028, Albany Street, Church Green, Financial District, Boston, Suffolk County, Massachusetts, 02284-6028, United States

    BOSTON, MA 022415348

    Phone:

    Type: Mailing

  • UMASS Memorial Medical Center University Campus Hospital, 55, Lake Avenue North, Worcester, Worcester County, Massachusetts, 01653, United States

    DEPARTMENT OF ANESTHESIOLOGY

    WORCESTER, MA 016550002

    Phone: (508) 334-3271

    Fax: (508) 856-5911

    Type: Location

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

No Open Payments data available for this provider.

This can happen when there are no reportable CMS Open Payments records.

Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

PECOS enrollment status

Participating (accepts Medicare assignment)

Enrollment effective: 2004-06-21

PECOS data refreshed: 2026-05-27

Medicare revalidation (CMS due date list)

Due date not assigned yet

CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.

Enrollment records

1

Earliest due date

Not assigned (TBD)

CMS data updated

2026-06-01

Revalidation progress

  1. Medicare enrolled
  2. On CMS revalidation list
  3. Due date assigned
  4. Revalidate in PECOS

CMS enrollment records

Enrollment IDTypeSpecialtyStateDue date
I20040621001526IAnesthesiologyMATBD

What to do next

  • No action required while the due date shows TBD.
  • Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
  • Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.

Verify on CMS Revalidation Lookup Tool

Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS

Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

Top Medicare procedures (2023) · refreshed 2026-05-27

HCPCSDescriptionServicesBeneficiariesMedicare allowed
99291Critical care, first 30-74 minutes13065$0
99232Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes8054$0
View full utilization report →

Insurance plans in this area (ZIP 02241)

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Group practice members

Group practice members are other physicians who share the same Group Practice PAC ID with this doctor. When doctors form a group practice and register in PECOS as a single entity, they receive a shared identification number. This table lists all providers in the same group practice.
PAC ID: 4284539891View full group profile
NameSpecialtyState
Certified Registered Nurse Anesthetist (Crna)MA
-MA
-MA
Family PracticeMA
Physician AssistantMA
Pulmonary Disease, Critical Care (Intensivists), Allergy/ImmunologyMA
-MA
-MA
Internal MedicineMA
Nurse PractitionerMA

Reviews

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Frequently asked questions

What is the registry number for WILLIAM D. HOFFMAN (MD)?
The registry entry for WILLIAM D. HOFFMAN (MD) shows NPI 1619968740.
Is WILLIAM D. HOFFMAN (MD)'s NPI status active today?
Active status means WILLIAM D. HOFFMAN (MD)'s NPI record is not deactivated in the public file.
What does the directory say WILLIAM D. HOFFMAN (MD) does?
Insurance directories may phrase it differently, but here WILLIAM D. HOFFMAN (MD) maps to Anesthesiology Physician. Clinical services aligned with this taxonomy classification.
Is WILLIAM D. HOFFMAN (MD) tied to Boston, Massachusetts?
If you are local to Boston, Massachusetts, WILLIAM D. HOFFMAN (MD) may be relevant to your search.
Can I verify credentials using only NPI?
NPI confirms identity in the directory; licensure and board certification require separate checks.

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