Zafar I Siddiqui, MD - Medicare Anesthesiology in Westborough, MA

Zafar I Siddiqui, MD is a medicare enrolled "Anesthesiology" physician in Westborough, Massachusetts. He graduated from medical school in 1982 and has 42 years of diverse experience with area of expertise as Anesthesiology. He is a member of the group practice Henry Heywood Memorial Hospital, Narragansett Bay Anesthesia Llc and his current practice location is 21 Thomas Newton Dr, Westborough, Massachusetts. You can reach out to his office (for appointments etc.) via phone at (508) 366-5012.

Zafar I Siddiqui is licensed to practice in Massachusetts (license number 219575) and he also participates in the medicare program. He accepts medicare assignments (which means he accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and his NPI Number is 1134189624.

Contact Information

Zafar I Siddiqui, MD
21 Thomas Newton Dr,
Westborough, MA 01581-1753
(508) 366-5012
Not Available

Map and Direction




Physician's Profile

Full NameZafar I Siddiqui
GenderMale
SpecialityAnesthesiology
Experience42 Years
Location21 Thomas Newton Dr, Westborough, Massachusetts
Accepts Medicare AssignmentsYes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Zafar I Siddiqui graduated from medical school in 1982
  NPI Data:
  • NPI Number: 1134189624
  • Provider Enumeration Date: 03/27/2006
  • Last Update Date: 09/20/2022
  Medicare PECOS Information:
  • PECOS PAC ID: 6204828973
  • Enrollment ID: I20040401000906

Medical Identifiers

Medical identifiers for Zafar I Siddiqui such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1134189624NPI-NPPES
110035666AMedicaidMA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207L00000XAnesthesiology 219575 (Massachusetts)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
St Joseph HospitalNashua, NHHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Henry Heywood Memorial Hospital165826260558
Narragansett Bay Anesthesia Llc5991774929109

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Zafar I Siddiqui allows following entities to bill medicare on his behalf.
Entity NameHenry Heywood Memorial Hospital
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1205823879
PECOS PAC ID: 1658262605
Enrollment ID: O20040322000360
Entity NameAthol Memorial Hospital Incorporated
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1336120047
PECOS PAC ID: 7911959846
Enrollment ID: O20050218000228
Entity NameAtlantic Anesthesia Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1700061652
PECOS PAC ID: 9638255300
Enrollment ID: O20080320000208

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Zafar I Siddiqui is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Zafar I Siddiqui, MD
21 Thomas Newton Dr,
Westborough, MA 01581-1753

Ph: () -
Zafar I Siddiqui, MD
21 Thomas Newton Dr,
Westborough, MA 01581-1753

Ph: (508) 366-5012

Reviews and Comments


Anesthesiology Doctors in Westborough, MA


Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

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