Lacy Jay Nasseh, FNP - Medicare Nurse Practitioner in Walnut Creek, CA

Lacy Jay Nasseh, FNP is a medicare enrolled "Nurse Practitioner - Family" in Walnut Creek, California. Her current practice location is 2255 Ygnacio Valley Rd Ste T35, Walnut Creek, California. You can reach out to her office (for appointments etc.) via phone at (925) 681-9246.

Lacy Jay Nasseh is licensed to practice in California (license number 95120763) and she also participates in the medicare program. She does not accept medicare assignments directly but she may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. Her NPI Number is 1255054631.

Contact Information

Lacy Jay Nasseh, FNP
2255 Ygnacio Valley Rd Ste T35,
Walnut Creek, CA 94598-3343
(925) 681-9246
Not Available

Map and Direction




Provider's Profile

Full NameLacy Jay Nasseh
GenderFemale
SpecialityNurse Practitioner - Family
Location2255 Ygnacio Valley Rd Ste T35, Walnut Creek, California
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1255054631
  • Provider Enumeration Date: 09/21/2022
  • Last Update Date: 09/21/2022
  Medicare PECOS Information:
  • PECOS PAC ID: 4486019346
  • Enrollment ID: I20230427001747

Medical Identifiers

Medical identifiers for Lacy Jay Nasseh such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1255054631NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
363LF0000XNurse Practitioner - Family 95120763 (California)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. Lacy Jay Nasseh allows following entities to bill medicare on her behalf.
Entity NameBass Medical Group
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1174253405
PECOS PAC ID: 9032111281
Enrollment ID: O20070201000181

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. Lacy Jay Nasseh 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
Lacy Jay Nasseh, FNP
1574 Sunnyvale Ave Apt 35,
Walnut Creek, CA 94597-1929

Ph: (925) 681-9246
Lacy Jay Nasseh, FNP
2255 Ygnacio Valley Rd Ste T35,
Walnut Creek, CA 94598-3343

Ph: (925) 681-9246

Reviews and Comments


Nurse Practitioner Nurses in Walnut Creek, CA

Carmen Ka Man Yung, FNP-BC
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Medicare: Accepting Medicare Assignments
Practice Location: 1479 Ygnacio Valley Rd Ste 150, Walnut Creek, CA 94598
Phone: 925-296-7340    
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Medicare: Medicare Enrolled
Practice Location: 1656 N California Blvd, 115, Walnut Creek, CA 94596
Phone: 925-941-7900    
Ms. Almita Heramia, N.P.
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Medicare: Medicare Enrolled
Practice Location: 450 N Wiget Ln, Walnut Creek, CA 94598
Phone: 925-691-9806    Fax: 925-691-9807
Maki Matsumura, NP-C
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Medicare: Accepting Medicare Assignments
Practice Location: 1450 Treat Blvd Ste 250a, Walnut Creek, CA 94597
Phone: 925-296-9740    Fax: 925-296-9062
Ms. Angela Christian, N.P.
Nurse Practitioner
Medicare: Medicare Enrolled
Practice Location: 130 La Casa Via, Suite 209, Walnut Creek, CA 94598
Phone: 925-935-6252    Fax: 925-935-7611
Reena Cho, FNP
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Medicare: Accepting Medicare Assignments
Practice Location: 110 Tampico Ste 210, Walnut Creek, CA 94598
Phone: 925-935-6952    Fax: 925-935-1396
Mr. Terence Koontzy,
Nurse Practitioner
Medicare: Medicare Enrolled
Practice Location: 738 Bancroft Rd, Walnut Creek, CA 94598
Phone: 925-938-8525    

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.