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Dr. Ryan Raymond Nahapetian, MD, MPH
NPI1720384209PAC ID0648400564
- Medicare services, 2024
- 2,260
- Medicare patients, 2024
- 1,175
- Part D claims, 2024
- 3,455
- Publications
- 1
- Hospital affiliations
- 5
- Practice address
- 500 W Broadway, Missoula, MT 59802
- Practice phone
- Call (406) 543-7271
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Nahapetian'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. Ryan Raymond Nahapetian is a pulmonologist in Missoula, Montana
Dr. Nahapetian practices at Providence St. Patrick Hospital in Missoula, Montana, part of Providence Health & Services.
Dr. Nahapetian's NPI, 1720384209, was assigned on February 1, 2011. Dr. Nahapetian holds Montana license 53892.
NPI and contact details
- NPI
- 1720384209NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0648400564
- NPI enumeration date
- February 1, 2011
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (406) 543-7271
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 42
- Medical school graduation
- 2010
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Ryan Raymond Nahapetian practices at Providence St. Patrick Hospital in Missoula, Montana
Dr. Nahapetian's primary practice is Providence St. Patrick Hospital, at 500 W Broadway, Missoula, MT 59802 in Missoula County. The practice phone is (406) 543-7271.
- Providence St. Patrick Hospital500 W Broadway, Missoula, MT 59802 · Missoula CountyPhone(406) 543-7271
Source: Dmand AI Affiliation Data
Dr. Ryan Raymond Nahapetian is affiliated with 6 sites of care and 2 medical groups
Dr. Nahapetian's primary practice is Providence St. Patrick Hospital in Missoula, Montana, part of Providence Health & Services. Dr. Nahapetian is also affiliated with Community Medical Center. The medical group on file is Providence St. Patrick Hospital. Dmand AI also links Dr. Nahapetian to 3 more hospitals, 1 group practice or clinic and 1 medical group, each named with a free account.
Community Medical CenterProvidence St. Patrick Hospital3 hospitalsNames with a free account1 group practice or clinicName with a free account1 medical groupName with a free account
See all 8 affiliations for Dr. NahapetianSources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Ryan Raymond Nahapetian's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Nahapetian practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Providence St. Patrick Hospital | Available with a free account |
| +5 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Ryan Raymond Nahapetian is one of 45 pulmonologists in Montana
Pulmonary disease is Dr. Nahapetian's primary specialty in the NPI Registry, under taxonomy code 207RP1001X. Dr. Nahapetian is licensed in Montana.
Specialties and state licenses
- Pulmonary disease, MontanaPrimary
Pulmonologists near Dr. Nahapetian
Counts of pulmonologists with a Dmand AI profile, by place and practice. Each opens the list.
45pulmonologists in Montana
3pulmonologists in Missoula
2pulmonologists at Providence St. Patrick HospitalSources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Ryan Raymond Nahapetian billed Medicare for 2,260 services in 2024
CMS data shows 2,260 Medicare services from Dr. Nahapetian across 12 procedure codes in 2024, for 1,175 Medicare patients. Medicare paid $82,013 for them.
Medicare services, 20242,260
Medicare patients1,175
Paid by Medicare$82,013
Procedure codes12
Dr. Nahapetian's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Tests and treatments
- 2023: 1,1132024: 1,48233%
- Office and hospital visits
- 2023: 5372024: 72435%
- Other services
- 2023: 482024: 5413%
Where Dr. Nahapetian's Medicare services took place, 2024
- In an office77834%
- In a facility1,48266%
Dr. Nahapetian compared with the Montana median for pulmonologists, 2024
- Dr. Nahapetian
- Montana median
- Medicare services
- 2,260vs 5664.0 times
- Medicare patients
- 1,175vs 2704.4 times
- Part D claims
- 3,282vs 24713.3 times
Medians across 50 pulmonologists in Montana with Dmand AI profiles that report each measure.
Dr. Nahapetian'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. Nahapetian?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Nahapetian and other pulmonologists in Montana.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Ryan Raymond Nahapetian treated 1,175 Medicare patients in 2024, average age 73
CMS counts 1,175 Medicare patients who saw Dr. Nahapetian in 2024. The largest group is 65 to 74, with 560 patients. 71% of them have high blood pressure, and 62% have high cholesterol. 13% are also on Medicaid. Their average risk score is 1.43, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Nahapetian's median patient age at 70, with 54% women.
Medicare patients, 20241,175
Average age73
Average risk score1.43
Also on Medicaid13%
Dr. Nahapetian's Medicare patients by age, 2024
Dr. Nahapetian's Medicare patients by sex, 2024
- Women63854%
- Men53746%
Chronic conditions among Dr. Nahapetian's Medicare patients, 2024
- High blood pressure71%
- High cholesterol62%
- Arthritis46%
- COPD41%
- Ischemic heart disease31%
- Mood disorders31%
- Depression29%
- Anxiety25%
Share of Medicare patients with each condition. A patient can have several.
Dr. Nahapetian's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 70
Patient panel by sex, all payers
- Women54%
- Men46%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Ryan Raymond Nahapetian wrote 3,455 Medicare Part D claims in 2024
In 2024, Dr. Nahapetian wrote 3,455 Medicare Part D claims for 462 patients. 44% of them were for generic drugs. CMS names the drug for 3,282 of them, across 59 drugs with 11 or more claims each, at $3,004,369 in total drug cost. In 2023, CMS named 1,964 claims across 45 drugs.
Part D claims, 20243,455
Drugs named by CMS59
Total drug cost$3M
Part D patients462
Dr. Nahapetian's Part D claims by kind of drug, 2024
- Generic1,529 claims44%
- Brand-name1,926 claims56%
Dr. Nahapetian'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. Nahapetian's Part D claims, 2024
- Antibiotics4%128 of 3,455 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: 1,9642024: 3,28267%
Drugs named by CMS: 59 in 2024, 45 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
How Dr. Ryan Raymond Nahapetian takes part in Medicare
Dr. Nahapetian accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Ryan Raymond Nahapetian has 1 publication on record
Dmand AI links 1 paper to Dr. Nahapetian in 2015. Dr. Nahapetian's most frequent co-author is Sairam Parthasarathy, MD.
Papers1
Dr. Nahapetian's most frequent co-authors
Recent publications by Dr. Nahapetian
See who Dr. Nahapetian researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Nahapetian works with, so you can find a warm path to the right pulmonologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Ryan Raymond Nahapetian received $5,029 in industry payments from 2016 to 2025
CMS Open Payments shows 102 general payments to Dr. Nahapetian from 24 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 52% of the total. Boehringer Ingelheim Pharmaceuticals, Inc. paid the most, $2,423.
General payments to Dr. Nahapetian by program year, 2016 to 2025
General payments to Dr. Nahapetian by kind, 2016 to 2025
$5Kin total
- Food and beverage$2,60152%
- Speaker and faculty fees$2,15043%
- Education$2786%
Companies that paid Dr. Nahapetian the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Ryan Raymond Nahapetian'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) |
| 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) |
| 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. Ryan Raymond Nahapetian
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. Ryan Raymond Nahapetian's NPI number?
Dr. Ryan Raymond Nahapetian's NPI number is 1720384209. It was assigned on February 1, 2011, and it is active in the NPI Registry.
What kind of doctor is Dr. Ryan Raymond Nahapetian?
Dr. Ryan Raymond Nahapetian is a pulmonologist in Missoula, Montana. The primary specialty in the NPI Registry is Pulmonary Disease Physician (taxonomy code 207RP1001X).
Where does Dr. Ryan Raymond Nahapetian practice?
Dr. Nahapetian practices at 500 W Broadway, Missoula, MT 59802. Dr. Nahapetian's primary practice is Providence St. Patrick Hospital in Missoula, Montana, part of Providence Health & Services. Dmand AI also links Dr. Nahapetian to 3 hospitals, 1 group practice or clinic and 1 medical group.
What is Dr. Ryan Raymond Nahapetian's office phone number?
The practice phone on file for Dr. Nahapetian is (406) 543-7271.
What is Dr. Ryan Raymond Nahapetian's medical license number?
Dr. Nahapetian holds Montana license 53892.
Which hospitals is Dr. Ryan Raymond Nahapetian affiliated with?
Dr. Nahapetian practices at Providence St. Patrick Hospital in Missoula, Montana. Dr. Nahapetian is also affiliated with Community Medical Center. Dmand AI links Dr. Nahapetian to 3 more hospitals.
What medical group is Dr. Ryan Raymond Nahapetian part of?
Dr. Nahapetian is linked to Providence St. Patrick Hospital. Dmand AI links Dr. Nahapetian to 1 more medical group.
Does Dr. Ryan Raymond Nahapetian accept Medicare?
Yes. CMS data shows Dr. Nahapetian billed Medicare for 2,260 services in 2024, and Dr. Nahapetian accepts Medicare assignment.
How many Medicare patients does Dr. Ryan Raymond Nahapetian see?
CMS counts 1,175 Medicare patients who saw Dr. Nahapetian in 2024, with an average age of 73.
What services does Dr. Ryan Raymond Nahapetian bill to Medicare?
In 2024, Dr. Nahapetian's most billed Medicare services were lung function service (94729), office visit, established patient (99213) and lung function service (94726).
Show 5 more questionsShow fewer questions
What drugs does Dr. Ryan Raymond Nahapetian prescribe most?
In 2024 Medicare Part D data, Dr. Nahapetian's most prescribed drugs by claims were Trelegy Ellipta, Albuterol Sulfate Hfa and Breztri Aerosphere.
Has Dr. Ryan Raymond Nahapetian received payments from drug or device companies?
CMS Open Payments shows $5,029 in general payments to Dr. Nahapetian from 24 companies from 2016 to 2025. The largest total came from Boehringer Ingelheim Pharmaceuticals, Inc.
How long has Dr. Ryan Raymond Nahapetian been practicing?
Dr. Nahapetian graduated from medical school in 2010, 16 years ago.
Does Dr. Ryan Raymond Nahapetian do research?
Dmand AI links 1 publication to Dr. Nahapetian.
Who does Dr. Ryan Raymond Nahapetian publish with?
Dr. Nahapetian's most frequent co-authors are Sairam Parthasarathy, MD (1 shared paper).
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