Allison Armstrong, - Medicare Nurse Practitioner in Palo Alto, CA

Allison Armstrong, is a medicare enrolled "Nurse Practitioner" in Palo Alto, California. Her current practice location is 725 Welch Rd, Palo Alto, California. You can reach out to her office (for appointments etc.) via phone at (650) 497-8000.

Allison Armstrong is licensed to practice in California (license number 95008272) 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 1598261166.

Contact Information

Allison Armstrong,
725 Welch Rd,
Palo Alto, CA 94304-1601
(650) 497-8000
Not Available

Map and Direction




Provider's Profile

Full NameAllison Armstrong
GenderFemale
SpecialityNurse Practitioner
Location725 Welch Rd, Palo Alto, California
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1598261166
  • Provider Enumeration Date: 04/03/2018
  • Last Update Date: 03/13/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 3779811864
  • Enrollment ID: I20190828000424

Medical Identifiers

Medical identifiers for Allison Armstrong such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1598261166NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
163WP0200XRegistered Nurse - Pediatrics 95149003 (California)Secondary
363LP0200XNurse Practitioner - Pediatrics 95008272 (California)Secondary
363L00000XNurse Practitioner 95008272 (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. Allison Armstrong allows following entities to bill medicare on her behalf.
Entity NameUcsf Pediatrics Associates
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1376614016
PECOS PAC ID: 6204749112
Enrollment ID: O20031106000823
Entity NameStanford Health Care
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1437292927
PECOS PAC ID: 6709797491
Enrollment ID: O20031124000348
Entity NameUniversity Of California San Francisco
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1861578973
PECOS PAC ID: 4486567229
Enrollment ID: O20031212000897
Entity NameUcsf Dept Of Surgery
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1477627537
PECOS PAC ID: 7719886373
Enrollment ID: O20040102000839
Entity NameUcsf Medical Group Business Services
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1477624104
PECOS PAC ID: 3779497870
Enrollment ID: O20040622001513
Entity NameLpch Medical Group Div Of Lucile
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1417907940
PECOS PAC ID: 0840298543
Enrollment ID: O20061113000232

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. Allison Armstrong 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
Allison Armstrong,
725 Welch Rd,
Palo Alto, CA 94304-1601

Ph: (650) 497-8000
Allison Armstrong,
725 Welch Rd,
Palo Alto, CA 94304-1601

Ph: (650) 497-8000

Reviews and Comments


Nurse Practitioner Nurses in Palo Alto, CA

Wendy Leigh Adams, ARNP
Nurse Practitioner
Medicare: Not Enrolled in Medicare
Practice Location: 725 Welch Rd, Palo Alto, CA 94304
Phone: 650-497-8000    
Lauren Genna Roos, NP
Nurse Practitioner
Medicare: Not Enrolled in Medicare
Practice Location: 725 Welch Rd, Palo Alto, CA 94304
Phone: 650-497-8000    
Mr. Christopher Gerard Gonzales, NP-C
Nurse Practitioner
Medicare: Accepting Medicare Assignments
Practice Location: 3801 Miranda Ave, Emergency Department, Palo Alto, CA 94304
Phone: 650-493-5000    
Sarah Davidson, NP
Nurse Practitioner
Medicare: Medicare Enrolled
Practice Location: 212 High St, Palo Alto, CA 94301
Phone: 415-663-5584    
Erin Danielle Herse, NP
Nurse Practitioner
Medicare: Medicare Enrolled
Practice Location: 725 Welch Rd, Palo Alto, CA 94304
Phone: 650-497-8000    
Christian Laparan, FNP-C
Nurse Practitioner
Medicare: Not Enrolled in Medicare
Practice Location: 795 El Camino Real, Palo Alto, CA 94301
Phone: 650-853-2977    
Theresa V Pittman, NP
Nurse Practitioner
Medicare: Not Enrolled in Medicare
Practice Location: 795 El Camino Real, Palo Alto, CA 94301
Phone: 650-321-4121    

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.