Dr William J Ennis Iii, MD - Medicare Anesthesiology in Concord, NH

Dr William J Ennis Iii, MD is a medicare enrolled "Anesthesiology" physician in Concord, New Hampshire. He graduated from medical school in 1988 and has 36 years of diverse experience with area of expertise as Anesthesiology. He is a member of the group practice Concord Orthopaedics Professional Association and his current practice location is 250 Pleasant St, Concord, New Hampshire. You can reach out to his office (for appointments etc.) via phone at (603) 789-9103.

Dr William J Ennis Iii is licensed to practice in New Hampshire (license number 9150) 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 1356447254.

Contact Information

Dr William J Ennis Iii, MD
250 Pleasant St,
Concord, NH 03301-2598
(603) 789-9103
(603) 227-7832

Map and Direction




Physician's Profile

Full NameDr William J Ennis Iii
GenderMale
SpecialityAnesthesiology
Experience36 Years
Location250 Pleasant St, Concord, New Hampshire
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:
  • Dr William J Ennis Iii graduated from medical school in 1988
  NPI Data:
  • NPI Number: 1356447254
  • Provider Enumeration Date: 09/16/2006
  • Last Update Date: 09/26/2024
  Medicare PECOS Information:
  • PECOS PAC ID: 5092752378
  • Enrollment ID: I20050408000876

Medical Identifiers

Medical identifiers for Dr William J Ennis Iii such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1356447254NPI-NPPES
0109559Y0NH03OtherNHANTHEM BCBS
8060319OtherNHCIGNA
30006777MedicaidNH

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207L00000XAnesthesiology 9150 (New Hampshire)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Concord HospitalConcord, NHHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Concord Orthopaedics Professional Association387056296069

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. Dr William J Ennis Iii allows following entities to bill medicare on his behalf.
Entity NameConcord Hospital Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1194778571
PECOS PAC ID: 6103721790
Enrollment ID: O20040405000916
Entity NameAnesthesia Associates Professional Association
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1881791150
PECOS PAC ID: 3375532435
Enrollment ID: O20040512000620
Entity NameConcord Orthopaedics Professional Association
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1437182490
PECOS PAC ID: 3870562960
Enrollment ID: O20040927000243

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. Dr William J Ennis Iii 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
Dr William J Ennis Iii, MD
250 Pleasant St,
Concord, NH 03301-7559

Ph: (603) 789-9103
Dr William J Ennis Iii, MD
250 Pleasant St,
Concord, NH 03301-2598

Ph: (603) 789-9103

Reviews and Comments


Anesthesiology Doctors in Concord, NH

Kathryn S Lemmon, MD
Anesthesiology
Medicare: Not Enrolled in Medicare
Practice Location: 246 Pleasant St, Suite 105 B Eye Anesthesia Of Concord Pllc, Concord, NH 03301
Phone: 603-224-6503    
Nathanael A. Slater, D.O.
Anesthesiology
Medicare: Accepting Medicare Assignments
Practice Location: 250 Pleasant St, Concord, NH 03301
Phone: 603-789-9103    Fax: 603-227-7832
Dr. Victoria Kogan, MD
Anesthesiology
Medicare: Accepting Medicare Assignments
Practice Location: 250 Pleasant St, Concord, NH 03301
Phone: 603-789-9103    Fax: 603-227-7832
Gregory F. Martin, M.D.
Anesthesiology
Medicare: Accepting Medicare Assignments
Practice Location: 250 Pleasant St, Concord, NH 03301
Phone: 603-789-9103    Fax: 603-227-7832
Roman Plachinta, M.D.
Anesthesiology
Medicare: Accepting Medicare Assignments
Practice Location: 1 Pillsbury St, Ste 202, Concord, NH 03301
Phone: 603-224-4776    Fax: 603-228-2113
Dr. John M Riddell, MD
Anesthesiology
Medicare: Accepting Medicare Assignments
Practice Location: 250 Pleasant St., Concord, NH 03301
Phone: 603-789-9103    Fax: 603-227-7832
Margaret A Pitts, M.D.
Anesthesiology
Medicare: Accepting Medicare Assignments
Practice Location: 250 Pleasant St., Concord, NH 03301
Phone: 603-789-9103    Fax: 603-227-7832

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).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.