Antifungal AgentsArizonaCoccidioidomycosis
Dr. Colin B. Fitterer, MD
NPI1538424684PAC ID1557599602
- Medicare services, 2024
- 1,932
- Medicare patients, 2024
- 435
- Part D claims, 2024
- 9,773
- Publications
- 1
- Hospital affiliations
- 5
- Practice address
- 1233 N 30th St, Billings, MT 59101
- Practice phone
- Call (406) 237-7000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
St Vincent Healthcare
Billings, Montana
Find Dr. Fitterer'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. Colin B. Fitterer is an internist in Billings, Montana
Dr. Fitterer practices at St Vincent Healthcare in Billings, Montana.
Dr. Fitterer's NPI, 1538424684, was assigned on July 5, 2012. Dr. Fitterer graduated from University of North Dakota School of Medicine in 2012. Dr. Fitterer holds Montana license 41891.
NPI and contact details
- NPI
- 1538424684NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1557599602
- NPI enumeration date
- July 5, 2012
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (406) 237-7000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 40
- Medical school graduation
- 2012
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Colin B. Fitterer practices at St Vincent Healthcare in Billings, Montana
Dr. Fitterer's primary practice is St Vincent Healthcare, at 1233 N 30th St, Billings, MT 59101 in Yellowstone County. The practice phone is (406) 237-7000.
- St Vincent Healthcare1233 N 30th St, Billings, MT 59101 · Yellowstone CountyPhone(406) 237-7000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Colin B. Fitterer is affiliated with 10 sites of care and 3 medical groups
Dr. Fitterer's primary practice is St Vincent Healthcare in Billings, Montana. Dr. Fitterer is also affiliated with Billings Clinic Hospital. The medical group on file is SCL Health Medical Group. Dmand AI also links Dr. Fitterer to 4 more hospitals, 3 group practices and clinics, 2 medical groups and 1 hospice, each named with a free account.
St Vincent HealthcarePrimary
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Colin B. Fitterer's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Fitterer practices, 9 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| St Vincent Healthcare | Available with a free account |
| +9 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
See the EHR and IT leaders at every site where Dr. Fitterer practices
Dmand AI maps EHR vendors, IT decision makers and buying committees across each health system and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Colin B. Fitterer is one of 311 internists in Montana
Internal medicine is Dr. Fitterer's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Fitterer is licensed in Montana.
Specialties and state licenses
- Internal medicine, MontanaPrimary
Internists near Dr. Fitterer
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. Colin B. Fitterer billed Medicare for 1,932 services in 2024
CMS data shows 1,932 Medicare services from Dr. Fitterer across 11 procedure codes in 2024, for 435 Medicare patients. Medicare paid $61,778 for them. Every service was in an office.
Medicare services, 20241,932
Medicare patients435
Paid by Medicare$61,778
Procedure codes11
Dr. Fitterer's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Other services
- 2023: 2922024: 867197%
- Office and hospital visits
- 2023: 8862024: 8652%
- Lab and pathology
- 2023: 2022024: 14926%
- Tests and treatments
- 2023: 452024: 5113%
Dr. Fitterer compared with the Montana median for internists, 2024
- Dr. Fitterer
- Montana median
- Medicare services
- 1,932vs 4764.1 times
- Medicare patients
- 435vs 25372% above
- Part D claims
- 9,165vs 14364.1 times
Medians across 340 internists in Montana with Dmand AI profiles that report each measure.
Dr. Fitterer'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.
Need commercial claims for Dr. Fitterer?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Fitterer and other internists in Montana.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Colin B. Fitterer treated 435 Medicare patients in 2024, average age 74
CMS counts 435 Medicare patients who saw Dr. Fitterer in 2024. The largest group is 65 to 74, with 229 patients. 64% of them have high blood pressure, and 44% have high cholesterol. 8% are also on Medicaid. Their average risk score is 1.03, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Fitterer's median patient age at 73, with 38% women.
Medicare patients, 2024435
Average age74
Average risk score1.03
Also on Medicaid8%
Dr. Fitterer's Medicare patients by age, 2024
Dr. Fitterer's Medicare patients by sex, 2024
- Women13731%
- Men29869%
Chronic conditions among Dr. Fitterer's Medicare patients, 2024
- High blood pressure64%
- High cholesterol44%
- Arthritis38%
- Chronic kidney disease29%
- Diabetes25%
- Ischemic heart disease23%
- Atrial fibrillation18%
- Heart failure15%
Share of Medicare patients with each condition. A patient can have several.
Dr. Fitterer's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 73
Patient panel by sex, all payers
- Women38%
- Men62%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Colin B. Fitterer wrote 9,773 Medicare Part D claims in 2024
In 2024, Dr. Fitterer wrote 9,773 Medicare Part D claims for 687 patients. 87% of them were for generic drugs. CMS names the drug for 9,165 of them, across 130 drugs with 11 or more claims each, at $810,826 in total drug cost. In 2023, CMS named 7,266 claims across 119 drugs.
Part D claims, 20249,773
Drugs named by CMS130
Total drug cost$810,826
Part D patients687
Dr. Fitterer's Part D claims by kind of drug, 2024
- Generic8,513 claims87%
- Brand-name1,217 claims12%
- Other43 claims0%
Dr. Fitterer'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. Fitterer's Part D claims, 2024
- Opioids6%591 of 9,773 claims
- Antibiotics1%74 of 9,773 claims
- Antipsychotics, patients 65 and over0%46 of 9,773 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: 7,2662024: 9,16526%
Drugs named by CMS: 130 in 2024, 119 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. Colin B. Fitterer offers telehealth to Medicare patients
Dr. Fitterer accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Fitterer as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
For MedTech and pharma teams
Find internists like Dr. Fitterer by procedure volume and prescribing
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. Colin B. Fitterer has 1 publication on record
Dmand AI links 1 paper to Dr. Fitterer in 2016. Dr. Fitterer's most frequent co-authors are Janis E. Blair, MD, Shimon Kusne, MD and Robert Orenstein, DO.
Papers1
Dr. Fitterer's most frequent co-authors
Recent publications by Dr. Fitterer
See who Dr. Fitterer researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Fitterer works with, so you can find a warm path to the right internists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Colin B. Fitterer received $58 in industry payments from 2019 to 2025
CMS Open Payments shows 3 general payments to Dr. Fitterer from 3 drug and device companies from 2019 to 2025. Food and beverage make up the largest share, 67% of the total. Pfizer Inc. paid the most, $21.
General payments to Dr. Fitterer by program year, 2019 to 2025
General payments to Dr. Fitterer by kind, 2019 to 2025
$58in total
- Food and beverage$3967%
- Education$1933%
Companies that paid Dr. Fitterer the most, 2019 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Colin B. Fitterer graduated from University of North Dakota School of Medicine
Dr. Fitterer graduated from University of North Dakota School of Medicine in 2012.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Colin B. Fitterer'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation 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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (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. Colin B. Fitterer
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. Colin B. Fitterer's NPI number?
Dr. Colin B. Fitterer's NPI number is 1538424684. It was assigned on July 5, 2012, and it is active in the NPI Registry.
What kind of doctor is Dr. Colin B. Fitterer?
Dr. Colin B. Fitterer is an internist in Billings, Montana. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Colin B. Fitterer practice?
Dr. Fitterer practices at 1233 N 30th St, Billings, MT 59101. Dr. Fitterer's primary practice is St Vincent Healthcare in Billings, Montana. Dmand AI also links Dr. Fitterer to 4 hospitals, 3 group practices and clinics, 2 medical groups and 1 hospice.
What is Dr. Colin B. Fitterer's office phone number?
The practice phone on file for Dr. Fitterer is (406) 237-7000.
What is Dr. Colin B. Fitterer's medical license number?
Dr. Fitterer holds Montana license 41891.
Which hospitals is Dr. Colin B. Fitterer affiliated with?
Dr. Fitterer is affiliated with Billings Clinic Hospital. Dmand AI links Dr. Fitterer to 4 more hospitals.
What medical group is Dr. Colin B. Fitterer part of?
Dr. Fitterer is linked to SCL Health Medical Group. Dmand AI links Dr. Fitterer to 2 more medical groups.
Does Dr. Colin B. Fitterer accept Medicare?
Yes. CMS data shows Dr. Fitterer billed Medicare for 1,932 services in 2024, and Dr. Fitterer accepts Medicare assignment.
Does Dr. Colin B. Fitterer offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Fitterer as offering telehealth services.
How many Medicare patients does Dr. Colin B. Fitterer see?
CMS counts 435 Medicare patients who saw Dr. Fitterer in 2024, with an average age of 74.
Show 7 more questionsShow fewer questions
What services does Dr. Colin B. Fitterer bill to Medicare?
In 2024, Dr. Fitterer's most billed Medicare services were office visit, established patient (99214), medicare service (G2211) and medicare service (G0439).
Where did Dr. Colin B. Fitterer go to medical school?
Dr. Fitterer graduated from University of North Dakota School of Medicine in 2012.
What drugs does Dr. Colin B. Fitterer prescribe most?
In 2024 Medicare Part D data, Dr. Fitterer's most prescribed drugs by claims were Losartan Potassium, Atorvastatin Calcium and Levothyroxine Sodium.
Has Dr. Colin B. Fitterer received payments from drug or device companies?
CMS Open Payments shows $58 in general payments to Dr. Fitterer from 3 companies from 2019 to 2025. The largest total came from Pfizer Inc.
How long has Dr. Colin B. Fitterer been practicing?
Dr. Fitterer graduated from medical school in 2012, 14 years ago.
Does Dr. Colin B. Fitterer do research?
Dmand AI links 1 publication to Dr. Fitterer.
Who does Dr. Colin B. Fitterer publish with?
Dr. Fitterer's most frequent co-authors are Janis E. Blair, MD (1 shared paper), Shimon Kusne, MD (1 shared paper) and Robert Orenstein, DO (1 shared paper).
Selling to internal medicine practices?
See internists in Montana by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card