Dr. Alexandra Marie Oster, MD
- Publications
- 102
- Affiliated sites
- 2
- Medical group
- 1
- State license
- 1
- Year NPI issued
- 2007
- Practice address
- 10110 South 7650 East, Crow Agency, MT 59022
- Practice phone
- Call (406) 638-3500
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Crow/Northern Cheyenne Hospital - Crow Agency (S 7650 E)
Indian Health Service Clinic · Crow Agency, Montana
Find Dr. Oster's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Alexandra Marie Oster is an internist in Crow Agency, Montana
Dr. Oster practices at Crow/Northern Cheyenne Hospital - Crow Agency (S 7650 E) in Crow Agency, Montana.
Dr. Oster's NPI, 1750411849, was assigned on March 7, 2007. Dr. Oster holds California license A94034.
- NPI
- 1750411849NPI Registry (opens in a new tab)
- NPI enumeration date
- March 7, 2007
- NPI status
- Active
- Practice phone
- (406) 638-3500
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Alexandra Marie Oster practices at Crow/Northern Cheyenne Hospital - Crow Agency (S 7650 E) in Crow Agency, Montana
Dr. Oster's primary practice is Crow/Northern Cheyenne Hospital - Crow Agency (S 7650 E), at 10110 South 7650 East, Crow Agency, MT 59022. The practice phone is (406) 638-3500.
- Crow/Northern Cheyenne Hospital - Crow Agency (S 7650 E)10110 South 7650 East, Crow Agency, MT 59022Phone(406) 638-3500
Source: Dmand AI Affiliation Data
Dr. Alexandra Marie Oster is affiliated with 2 sites of care and 1 medical group
Dr. Oster's primary practice is Crow/Northern Cheyenne Hospital - Crow Agency (S 7650 E) in Crow Agency, Montana. The medical group on file is Verne E. Gibbs Health Center. Dmand AI also links Dr. Oster to 1 more group practice or clinic, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Alexandra Marie Oster's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Oster practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Crow/Northern Cheyenne Hospital - Crow Agency (S 7650 E) | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Alexandra Marie Oster is one of 311 internists in Montana
Internal medicine is Dr. Oster's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Oster is licensed in California.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
Internists near Dr. Oster
Counts of internists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Alexandra Marie Oster's patients have a median age of 62
Across all payers, Dmand AI patient panel data puts Dr. Oster's median patient age at 62, with 67% women.
Dr. Oster's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 62
Patient panel by sex, all payers
- Women67%
- Men33%
Source: Dmand AI Patient Panel Data
Dr. Alexandra Marie Oster has 102 publications on record
Dmand AI links 102 papers to Dr. Oster, published from 2010 to 2025. 2016 was the busiest year, with 10. The most frequent topics are HIV Infections, Homosexuality, Male and HIV-1. Dr. Oster has published most often in MMWR Morb Mortal Wkly Rep. Dr. Oster's most frequent co-authors are Robert Paul McClung, MD, Laura Avary Cooley, MD and Leandro Antonio Mena, MD.
Dr. Oster's papers by year, 2016 to 2025
Topics Dr. Oster writes about most
- HIV Infections
- Homosexuality, Male
- HIV-1
- Centers for Disease Control and Prevention, U.S.
- Disease Outbreaks
- Mass Screening
- Sexual Behavior
- Substance Abuse, Intravenous
Dr. Oster's most frequent co-authors
- Robert Paul McClung, MD13 shared papers
- Laura Avary Cooley, MD5 shared papers
- Leandro Antonio Mena, MD5 shared papers
Recent publications by Dr. Oster
Public Health Rep
See who Dr. Oster researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Oster works with, so you can find a warm path to the right internists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Sources for Dr. Alexandra Marie Oster's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Alexandra Marie Oster
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Alexandra Marie Oster's NPI number?
Dr. Alexandra Marie Oster's NPI number is 1750411849. It was assigned on March 7, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Alexandra Marie Oster?
Dr. Alexandra Marie Oster is an internist in Crow Agency, Montana. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Alexandra Marie Oster practice?
Dr. Oster practices at 10110 South 7650 East, Crow Agency, MT 59022. Dr. Oster's primary practice is Crow/Northern Cheyenne Hospital - Crow Agency (S 7650 E) in Crow Agency, Montana. Dmand AI also links Dr. Oster to 1 group practice or clinic.
What is Dr. Alexandra Marie Oster's office phone number?
The practice phone on file for Dr. Oster is (406) 638-3500.
What is Dr. Alexandra Marie Oster's medical license number?
Dr. Oster holds California license A94034.
What medical group is Dr. Alexandra Marie Oster part of?
Dr. Oster is linked to Verne E. Gibbs Health Center.
How long has Dr. Alexandra Marie Oster been practicing?
Dr. Oster's NPI was assigned in 2007.
Does Dr. Alexandra Marie Oster do research?
Dmand AI links 102 publications to Dr. Oster, published from 2010 to 2025.
Who does Dr. Alexandra Marie Oster publish with?
Dr. Oster's most frequent co-authors are Robert Paul McClung, MD (13 shared papers), Laura Avary Cooley, MD (5 shared papers) and Leandro Antonio Mena, MD (5 shared papers).
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