Tammy Ann Winchell, ARNP - Medicare Nurse Practitioner in Mill Valley, CA

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Tammy Ann Winchell, ARNP is a medicare enrolled "Nurse Practitioner - Pediatrics" in Mill Valley, California. Her current practice location is 750 Redwood Hwy Frontage Rd Ste 1204, Mill Valley, California. You can reach out to her office (for appointments etc.) via phone at (415) 384-4778.

Tammy Ann Winchell is licensed to practice in California (license number NP95000700) 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 1679673347.

Contact Information

Tammy Ann Winchell, ARNP
750 Redwood Hwy Frontage Rd Ste 1204,
Mill Valley, CA 94941-2483
(415) 384-4778
(415) 384-4779

Map and Direction




Provider's Profile

Full NameTammy Ann Winchell
GenderFemale
SpecialityNurse Practitioner - Pediatrics
Location750 Redwood Hwy Frontage Rd Ste 1204, Mill Valley, California
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1679673347
  • Provider Enumeration Date: 09/23/2006
  • Last Update Date: 03/10/2022
  Medicare PECOS Information:
  • PECOS PAC ID: 6406080027
  • Enrollment ID: I20131014000864

Medical Identifiers

Medical identifiers for Tammy Ann Winchell such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1679673347NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
363LP0200XNurse Practitioner - Pediatrics AP30007401 (Washington)Secondary
363LP0200XNurse Practitioner - Pediatrics 201150050NP (Oregon)Secondary
363LP0200XNurse Practitioner - Pediatrics NP95000700 (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. Tammy Ann Winchell allows following entities to bill medicare on her behalf.
Entity NameLegacy Emanuel Hospital & Health Center
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1831112358
PECOS PAC ID: 4587573639
Enrollment ID: O20040127001204
Entity NameNorthwest Acute Care Specialists Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1215983200
PECOS PAC ID: 7012807373
Enrollment ID: O20040318001535

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. Tammy Ann Winchell 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
Tammy Ann Winchell, ARNP
3400 Data Dr,
Rancho Cordova, CA 95670-7956

Ph: () -		Tammy Ann Winchell, ARNP
750 Redwood Hwy Frontage Rd Ste 1204,
Mill Valley, CA 94941-2483

Ph: (415) 384-4778

Reviews and Comments


Nurse Practitioner Nurses in Mill Valley, CA

Carlee Y Balzaretti, FNP-BC
Nurse Practitioner
Medicare: Not Enrolled in Medicare
Practice Location: 750 Redwood Hwy Frontage Rd Ste 1204, Mill Valley, CA 94941
Phone: 415-384-4778    
Susan Pauly-o'neill, NP
Nurse Practitioner
Medicare: Medicare Enrolled
Practice Location: 750 Redwood Hwy Frontage Rd, Mill Valley, CA 94941
Phone: 415-384-4778    
Tina Marie Buoncristiani, P.N.P.
Nurse Practitioner
Medicare: Medicare Enrolled
Practice Location: 402 Molino Ave, Mill Valley, CA 94941
Phone: 415-888-2568    
Nancy W Selix, CNM, FNP
Nurse Practitioner
Medicare: Not Enrolled in Medicare
Practice Location: 957 W California Ave, Mill Valley, CA 94941
Phone: 415-497-3029    
Peggy Schwartz Chipkin, RN, NP, FNP
Nurse Practitioner
Medicare: Not Enrolled in Medicare
Practice Location: 158 E Blithedale Ave Ste F, Mill Valley, CA 94941
Phone: 415-389-8589    
Sarah Allphin Hubbell, DNP, FNP-C
Nurse Practitioner
Medicare: Medicare Enrolled
Practice Location: 750 Redwood Hwy Frontage Rd Ste 1204, Mill Valley, CA 94941
Phone: 415-384-4778    
Chiara Schlegel, FNP
Nurse Practitioner
Medicare: Not Enrolled in Medicare
Practice Location: 239 Miller Ave Ste 8, Mill Valley, CA 94941
Phone: 415-730-4235    

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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