Dr Isabel Quintana Greenfield, MD - Medicare Obstetrics & Gynecology in Missoula, MT

Dr Isabel Quintana Greenfield, MD is a medicare enrolled "Obstetrics & Gynecology" physician in Missoula, Montana. Her current practice location is 401 Railroad St W, Missoula, Montana. You can reach out to her office (for appointments etc.) via phone at (406) 258-4494.

Dr Isabel Quintana Greenfield is licensed to practice in Montana (license number MED-PHYS-APP-142558) 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 1326432873.

Contact Information

Dr Isabel Quintana Greenfield, MD
401 Railroad St W,
Missoula, MT 59802-4178
(406) 258-4494
Not Available

Map and Direction




Physician's Profile

Full NameDr Isabel Quintana Greenfield
GenderFemale
SpecialityObstetrics & Gynecology
Location401 Railroad St W, Missoula, Montana
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1326432873
  • Provider Enumeration Date: 03/23/2015
  • Last Update Date: 02/13/2025
  Medicare PECOS Information:
  • PECOS PAC ID: 5698056869
  • Enrollment ID: I20230630000795

Medical Identifiers

Medical identifiers for Dr Isabel Quintana Greenfield such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1326432873NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207V00000XObstetrics & Gynecology MED-PHYS-APP-142558 (Montana)Primary
207V00000XObstetrics & Gynecology A144104 (California)Secondary

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. Dr Isabel Quintana Greenfield allows following entities to bill medicare on her behalf.
Entity NamePermanente Medical Group Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1073606299
PECOS PAC ID: 8921910225
Enrollment ID: O20031104000710

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. Dr Isabel Quintana Greenfield 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
Dr Isabel Quintana Greenfield, MD
401 Railroad St W,
Missoula, MT 59802-4178

Ph: () -
Dr Isabel Quintana Greenfield, MD
401 Railroad St W,
Missoula, MT 59802-4178

Ph: (406) 258-4494

Reviews and Comments


Obstetrics & Gynecology Doctors in Missoula, MT

Amethyst Smith, MD
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 500 W Broadway St, Missoula, MT 59802
Phone: 406-721-5600    Fax: 406-329-7103
Dr. Kristin Ann Rauch, M.D.
Obstetrics & Gynecology
Medicare: Not Enrolled in Medicare
Practice Location: 2825 Fort Missoula Rd, #115, Missoula, MT 59804
Phone: 406-728-4292    Fax: 406-728-5770
Dr. Dionne Drakulich, M.D.
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 2835 Fort Missoula Rd Ste 101, Missoula, MT 59804
Phone: 406-327-4640    Fax: 504-988-1846
Dr. Paul Thomas Baumgartner, M.D.
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 2825 Fort Missoula Rd Ste 304, Missoula, MT 59804
Phone: 406-808-6647    Fax: 406-909-6647
Jennifer Larson, ARNP
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 3624 Brooks St Ste 101, Missoula, MT 59801
Phone: 888-227-3312    
Dr. Valerie A Knudsen, M.D.
Obstetrics & Gynecology
Medicare: Not Enrolled in Medicare
Practice Location: 2831 Fort Missoula Rd, Suite 306, Missoula, MT 59804
Phone: 406-327-4395    Fax: 406-327-4394
Jesse J Pitt, MD
Obstetrics & Gynecology
Medicare: Not Enrolled in Medicare
Practice Location: 2825 Fort Missoula Road, Suite 225, Missoula, MT 59804
Phone: 406-721-1640    Fax: 406-721-2138

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.