Clair M Oja, DNP, PMHNP - Medicare Nurse Practitioner in Ashburn, VA

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Clair M Oja, DNP, PMHNP is a medicare enrolled "Nurse Practitioner - Psychiatric/mental Health" in Ashburn, Virginia. She graduated from nursing school in 2006 and has 19 years of diverse experience with area of expertise as Nurse Practitioner. She is a member of the group practice Commonwealth Counseling Associates Inc and her current practice location is 20098 Ashbrook Pl Ste 255, Ashburn, Virginia. You can reach out to her office (for appointments etc.) via phone at (804) 207-6737.

Clair M Oja is licensed to practice in Virginia (license number 0024168599) 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 1558681478.

Contact Information

Clair M Oja, DNP, PMHNP
20098 Ashbrook Pl Ste 255,
Ashburn, VA 20147-3394
(804) 207-6737
Not Available

Map and Direction




Provider's Profile

Full NameClair M Oja
GenderFemale
SpecialityNurse Practitioner
Experience19 Years
Location20098 Ashbrook Pl Ste 255, Ashburn, Virginia
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:
  • Clair M Oja graduated from nursing school in 2006
  NPI Data:
  • NPI Number: 1558681478
  • Provider Enumeration Date: 06/02/2010
  • Last Update Date: 03/13/2025
  Medicare PECOS Information:
  • PECOS PAC ID: 4587812391
  • Enrollment ID: I20121114000321

Medical Identifiers

Medical identifiers for Clair M Oja such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1558681478NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
163W00000XRegistered Nurse 0001222539 (Virginia)Secondary
363LF0000XNurse Practitioner - Family 0024168599 (Virginia)Secondary
363LP0808XNurse Practitioner - Psychiatric/mental Health 0024168599 (Virginia)Primary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Commonwealth Counseling Associates Inc0941288583140

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. Clair M Oja allows following entities to bill medicare on her behalf.
Entity NameCommonwealth Counseling Associates Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1851345805
PECOS PAC ID: 0941288583
Enrollment ID: O20040710000183
Entity NamePrivia Medical Group Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1013042480
PECOS PAC ID: 4385682061
Enrollment ID: O20140603000011
Entity NameSignify Health Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1689158487
PECOS PAC ID: 3274895263
Enrollment ID: O20210226002383

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. Clair M Oja 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
Clair M Oja, DNP, PMHNP
20098 Ashbrook Pl Ste 255,
Ashburn, VA 20147-3394

Ph: (804) 207-6737		Clair M Oja, DNP, PMHNP
20098 Ashbrook Pl Ste 255,
Ashburn, VA 20147-3394

Ph: (804) 207-6737

Reviews and Comments


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Phone: 703-447-5537    

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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