Christyn Sieve, PSY, D - Medicare Psychologist in Portsmouth, NH

Christyn Sieve, PSY, D is a medicare enrolled "Psychologist" provider in Portsmouth, New Hampshire. She graduated from medical school in 1999 and has 25 years of diverse experience with area of expertise as Clinical Psychologist. Her current practice location is 1 Cate St, Portsmouth, New Hampshire. You can reach out to her office (for appointments etc.) via phone at (603) 433-2626.

Christyn Sieve is licensed to practice in New Hampshire (license number NH964) and she also participates in the medicare program. She accepts medicare assignments (which means she accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and her NPI Number is 1578607743.

Contact Information

Christyn Sieve, PSY, D
1 Cate St,
Portsmouth, NH 03801-7108
(603) 433-2626
(603) 433-2736

Map and Direction




Healthcare Provider's Profile

Full NameChristyn Sieve
GenderFemale
SpecialityClinical Psychologist
Experience25 Years
Location1 Cate St, Portsmouth, New Hampshire
Accepts Medicare AssignmentsYes. She accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Christyn Sieve graduated from medical school in 1999
  NPI Data:
  • NPI Number: 1578607743
  • Provider Enumeration Date: 02/19/2007
  • Last Update Date: 07/08/2007
  Medicare PECOS Information:
  • PECOS PAC ID: 3476778507
  • Enrollment ID: I20140707000017

Medical Identifiers

Medical identifiers for Christyn Sieve such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1578607743NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
103T00000XPsychologist NH964 (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. Christyn Sieve allows following entities to bill medicare on her behalf.
Entity NamePortsmouth And Exeter Mental Health Associates Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1912050311
PECOS PAC ID: 2466343488
Enrollment ID: O20040322000153
Entity NameChristyn Sieve Psyd Psychological Services Pllc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1326636903
PECOS PAC ID: 9537578968
Enrollment ID: O20210514000378

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. Christyn Sieve 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
Christyn Sieve, PSY, D
1 Cate St,
Portsmouth, NH 03801-7108

Ph: (603) 433-2626
Christyn Sieve, PSY, D
1 Cate St,
Portsmouth, NH 03801-7108

Ph: (603) 433-2626

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).

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.