Dr. Steven J. Gerstner, MD
- Medicare services, 2024
- 1,100
- Medicare patients, 2024
- 530
- Part D claims, 2024
- 5,029
- Hospital affiliations
- 2
- Medical group
- 1
- Practice address
- 2800 10th Ave N, Billings, MT 59101
- Practice phone
- Call (406) 657-4000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Gerstner's professional email, personal email and mobile number
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Dr. Steven J. Gerstner is an internist in Billings, Montana
Dr. Gerstner practices at Billings Clinic Hospital in Billings, Montana, part of Billings Clinic.
Dr. Gerstner's NPI, 1124130695, was assigned on August 31, 2006. Dr. Gerstner graduated from University of California, Geffen School of Medicine in 1986. Dr. Gerstner holds Montana license 6476.
- NPI
- 1124130695NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2264488923
- NPI enumeration date
- August 31, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (406) 657-4000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 66
- Medical school graduation
- 1986
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Steven J. Gerstner practices at Billings Clinic Hospital in Billings, Montana
Dr. Gerstner's primary practice is Billings Clinic Hospital, at 2800 10th Ave N, Billings, MT 59101 in Yellowstone County. The practice phone is (406) 657-4000.
- Billings Clinic Hospital2800 10th Ave N, Billings, MT 59101 · Yellowstone CountyPhone(406) 657-4000
Source: Dmand AI Affiliation Data
Dr. Steven J. Gerstner is affiliated with 3 sites of care and 1 medical group
Dr. Gerstner's primary practice is Billings Clinic Hospital in Billings, Montana, part of Billings Clinic. Dr. Gerstner is also affiliated with St. Vincent Regional Hospital. The medical group on file is Billings Clinic. Dmand AI also links Dr. Gerstner 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. Steven J. Gerstner's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Gerstner practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Billings Clinic Hospital | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dmand AI maps EHR vendors, IT decision makers and buying committees across Billings Clinic and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Steven J. Gerstner is one of 311 internists in Montana
Internal medicine is Dr. Gerstner's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Gerstner is board certified in internal medicine by the American Board of Internal Medicine. Dr. Gerstner is licensed in Montana.
Specialties and state licenses
- Internal medicine, MontanaPrimary
Internists near Dr. Gerstner
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. Steven J. Gerstner billed Medicare for 1,100 services in 2024
CMS data shows 1,100 Medicare services from Dr. Gerstner across 6 procedure codes in 2024, for 530 Medicare patients. Medicare paid $39,478 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Gerstner's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 5952024: 73524%
- Other services
- 2023: 02024: 365
Dr. Gerstner compared with the Montana median for internists, 2024
- Dr. Gerstner
- Montana median
- Medicare services
- 1,100vs 4762.3 times
- Medicare patients
- 530vs 2532.1 times
- Part D claims
- 4,449vs 14331.1 times
Medians across 340 internists in Montana with Dmand AI profiles that report each measure.
Dr. Gerstner's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Gerstner and other internists in Montana.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Steven J. Gerstner treated 530 Medicare patients in 2024, average age 73
CMS counts 530 Medicare patients who saw Dr. Gerstner in 2024. The largest group is 65 to 74, with 244 patients. 69% of them have high blood pressure, and 66% have high cholesterol. 16% are also on Medicaid. Their average risk score is 1.22, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Gerstner's median patient age at 71, with 59% women.
Dr. Gerstner's Medicare patients by age, 2024
Dr. Gerstner's Medicare patients by sex, 2024
- Women31058%
- Men22042%
Chronic conditions among Dr. Gerstner's Medicare patients, 2024
- High blood pressure69%
- High cholesterol66%
- Arthritis46%
- Mood disorders35%
- Depression33%
- Diabetes29%
- Anxiety28%
- Ischemic heart disease22%
Share of Medicare patients with each condition. A patient can have several.
Dr. Gerstner's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 71
Patient panel by sex, all payers
- Women59%
- Men41%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Steven J. Gerstner wrote 5,029 Medicare Part D claims in 2024
In 2024, Dr. Gerstner wrote 5,029 Medicare Part D claims for 528 patients. 85% of them were for generic drugs. CMS names the drug for 4,449 of them, across 97 drugs with 11 or more claims each, at $417,766 in total drug cost. In 2023, CMS named 4,076 claims across 96 drugs.
Dr. Gerstner's Part D claims by kind of drug, 2024
- Generic4,278 claims85%
- Brand-name735 claims15%
- Other16 claims0%
Dr. Gerstner's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Gerstner's Part D claims, 2024
- Opioids7%352 of 5,029 claims
- Antibiotics1%50 of 5,029 claims
- Antipsychotics, patients 65 and over0%14 of 5,029 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 4,0762024: 4,4499%
Drugs named by CMS: 97 in 2024, 96 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Steven J. Gerstner offers telehealth to Medicare patients
Dr. Gerstner accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Gerstner as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Steven J. Gerstner graduated from University of California, Geffen School of Medicine
Dr. Gerstner graduated from University of California, Geffen School of Medicine in 1986.
- Medical school
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Sources for Dr. Steven J. Gerstner'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 services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| 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. Steven J. Gerstner
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. Steven J. Gerstner's NPI number?
Dr. Steven J. Gerstner's NPI number is 1124130695. It was assigned on August 31, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Steven J. Gerstner?
Dr. Steven J. Gerstner is an internist in Billings, Montana. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Steven J. Gerstner practice?
Dr. Gerstner practices at 2800 10th Ave N, Billings, MT 59101. Dr. Gerstner's primary practice is Billings Clinic Hospital in Billings, Montana, part of Billings Clinic. Dmand AI also links Dr. Gerstner to 1 group practice or clinic.
What is Dr. Steven J. Gerstner's office phone number?
The practice phone on file for Dr. Gerstner is (406) 657-4000.
What is Dr. Steven J. Gerstner's medical license number?
Dr. Gerstner holds Montana license 6476.
Which hospitals is Dr. Steven J. Gerstner affiliated with?
Dr. Gerstner practices at Billings Clinic Hospital in Billings, Montana. Dr. Gerstner is also affiliated with St. Vincent Regional Hospital.
What medical group is Dr. Steven J. Gerstner part of?
Dr. Gerstner is linked to Billings Clinic.
Does Dr. Steven J. Gerstner accept Medicare?
Yes. CMS data shows Dr. Gerstner billed Medicare for 1,100 services in 2024, and Dr. Gerstner accepts Medicare assignment.
Does Dr. Steven J. Gerstner offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Gerstner as offering telehealth services.
How many Medicare patients does Dr. Steven J. Gerstner see?
CMS counts 530 Medicare patients who saw Dr. Gerstner in 2024, with an average age of 73.
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Is Dr. Steven J. Gerstner board certified?
Yes. Dr. Gerstner is board certified in internal medicine by the American Board of Internal Medicine.
What services does Dr. Steven J. Gerstner bill to Medicare?
In 2024, Dr. Gerstner's most billed Medicare services were office visit, established patient (99214), medicare service (G2211) and office visit, established patient (99213).
Where did Dr. Steven J. Gerstner go to medical school?
Dr. Gerstner graduated from University of California, Geffen School of Medicine in 1986.
What drugs does Dr. Steven J. Gerstner prescribe most?
In 2024 Medicare Part D data, Dr. Gerstner's most prescribed drugs by claims were Omeprazole, Atorvastatin Calcium and Levothyroxine Sodium.
How long has Dr. Steven J. Gerstner been practicing?
Dr. Gerstner graduated from medical school in 1986, 40 years ago.
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