William D Charmak, PHD - Medicare Psychologist in Nashua, NH

William D Charmak, PHD is a medicare enrolled "Psychologist - Clinical" provider in Nashua, New Hampshire. His current practice location is 19 Tyler St Ste 103, Nashua, New Hampshire. You can reach out to his office (for appointments etc.) via phone at (603) 577-5375.

William D Charmak is licensed to practice in New Hampshire (license number 1533) and he also participates in the medicare program. He does not accept medicare assignments directly but he may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. His NPI Number is 1710078068.

Contact Information

William D Charmak, PHD
19 Tyler St Ste 103,
Nashua, NH 03060-2951
(603) 577-5375
(603) 577-5609

Map and Direction




Healthcare Provider's Profile

Full NameWilliam D Charmak
GenderMale
SpecialityPsychologist - Clinical
Location19 Tyler St Ste 103, Nashua, New Hampshire
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1710078068
  • Provider Enumeration Date: 09/28/2006
  • Last Update Date: 04/24/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 6507936283
  • Enrollment ID: I20080606000597

Medical Identifiers

Medical identifiers for William D Charmak such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1710078068NPI-NPPES
152136OtherMDVALUE OPTIONS
5339652OtherMDAETNA
36140013OtherMDCAREFIRST DC
3162004OtherMDUBH/ONE NET/MAMSI
54622502OtherMDCAREFIRST BCBS

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
103TB0200XPsychologist - Cognitive & Behavioral 03296 (Maryland)Secondary
103TC0700XPsychologist - Clinical 03296 (Maryland)Secondary
103TC1900XPsychologist - Counseling 03296 (Maryland)Secondary
103TC0700XPsychologist - Clinical 1533 (New Hampshire)Primary

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. William D Charmak allows following entities to bill medicare on his behalf.
Entity NameColumbia Counseling Center Pa
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1578504296
PECOS PAC ID: 9931198843
Enrollment ID: O20040506001676

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. William D Charmak 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
William D Charmak, PHD
Po Box 3677,
Nashua, NH 03061-3677

Ph: (603) 577-7900
William D Charmak, PHD
19 Tyler St Ste 103,
Nashua, NH 03060-2951

Ph: (603) 577-5375

Reviews and Comments


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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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