Dr. Ryan Obarzanek, MD
- Part D claims, 2021
- 38
- Hospital affiliations
- 1
- Industry payments
- $3,014
- State license
- 1
- Year NPI issued
- 2018
- Practice address
- 4646 John R., Detroit, MI 48201
- Practice phone
- Call (313) 576-1000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Obarzanek'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 Obarzanek is a pulmonologist in Detroit, Michigan
Dr. Obarzanek practices at John D. Dingell Department of Veterans Affairs Medical Center in Detroit, Michigan, part of Veterans Health Administration.
Dr. Obarzanek's NPI, 1346739596, was assigned on May 3, 2018. Dr. Obarzanek holds Michigan license 4301512590.
- NPI
- 1346739596NPI Registry (opens in a new tab)
- NPI enumeration date
- May 3, 2018
- NPI status
- Active
- Practice phone
- (313) 576-1000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Ryan Obarzanek practices at John D. Dingell Department of Veterans Affairs Medical Center in Detroit, Michigan
Dr. Obarzanek's primary practice is John D. Dingell Department of Veterans Affairs Medical Center, at 4646 John R., Detroit, MI 48201 in Wayne County. The practice phone is (313) 576-1000.
- John D. Dingell Department of Veterans Affairs Medical Center4646 John R., Detroit, MI 48201 · Wayne CountyPhone(313) 576-1000
Source: Dmand AI Affiliation Data
Dr. Ryan Obarzanek is affiliated with 1 site of care
Dr. Obarzanek's primary practice is John D. Dingell Department of Veterans Affairs Medical Center in Detroit, Michigan, part of Veterans Health Administration. Dr. Obarzanek's employer is on file too: a hospital.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Ryan Obarzanek's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Obarzanek practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| John D. Dingell Department of Veterans Affairs Medical Center | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Veterans Health Administration and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Ryan Obarzanek is one of 451 pulmonologists in Michigan
Pulmonary disease is Dr. Obarzanek's primary specialty in the NPI Registry, under taxonomy code 207RP1001X. Dr. Obarzanek is licensed in Michigan.
Specialties and state licenses
- Pulmonary disease, MichiganPrimary
Pulmonologists near Dr. Obarzanek
Counts of pulmonologists 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. Ryan Obarzanek's patients have a median age of 62
Across all payers, Dmand AI patient panel data puts Dr. Obarzanek's median patient age at 62, with 0% women.
Dr. Obarzanek'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
- Women0%
- Men100%
Source: Dmand AI Patient Panel Data
Dr. Ryan Obarzanek wrote 38 Medicare Part D claims in 2021
In 2021, Dr. Obarzanek wrote 38 Medicare Part D claims. Every claim was for a generic drug. They cover 2 drugs, with $449 in total drug cost. In 2020, CMS named 159 claims across 9 drugs.
Dr. Obarzanek's most prescribed drugs by claims, 2021
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2020 to 2021
- 2020
- 2021
- Claims for drugs CMS names
- 2020: 1592021: 3876%
Drugs named by CMS: 2 in 2021, 9 in 2020.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. Ryan Obarzanek received $3,014 in industry payments from 2019 to 2024
CMS Open Payments shows 41 general payments to Dr. Obarzanek from 15 drug and device companies from 2019 to 2024. Food and beverage make up the largest share, 98% of the total. AstraZeneca Pharmaceuticals LP paid the most, $1,086.
General payments to Dr. Obarzanek by program year, 2019 to 2024
General payments to Dr. Obarzanek by kind, 2019 to 2024
- Food and beverage$2,94998%
- Education$652%
Companies that paid Dr. Obarzanek the most, 2019 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Ryan Obarzanek'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 |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab) |
| 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 Obarzanek
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 Obarzanek's NPI number?
Dr. Ryan Obarzanek's NPI number is 1346739596. It was assigned on May 3, 2018, and it is active in the NPI Registry.
What kind of doctor is Dr. Ryan Obarzanek?
Dr. Ryan Obarzanek is a pulmonologist in Detroit, Michigan. The primary specialty in the NPI Registry is Pulmonary Disease Physician (taxonomy code 207RP1001X).
Where does Dr. Ryan Obarzanek practice?
Dr. Obarzanek practices at 4646 John R., Detroit, MI 48201. Dr. Obarzanek's primary practice is John D. Dingell Department of Veterans Affairs Medical Center in Detroit, Michigan, part of Veterans Health Administration.
What is Dr. Ryan Obarzanek's office phone number?
The practice phone on file for Dr. Obarzanek is (313) 576-1000.
What is Dr. Ryan Obarzanek's medical license number?
Dr. Obarzanek holds Michigan license 4301512590.
Which hospitals is Dr. Ryan Obarzanek affiliated with?
Dr. Obarzanek practices at John D. Dingell Department of Veterans Affairs Medical Center in Detroit, Michigan.
What drugs does Dr. Ryan Obarzanek prescribe most?
In 2021 Medicare Part D data, Dr. Obarzanek's most prescribed drugs by claims were Atorvastatin Calcium and Amlodipine Besylate.
Has Dr. Ryan Obarzanek received payments from drug or device companies?
CMS Open Payments shows $3,014 in general payments to Dr. Obarzanek from 15 companies from 2019 to 2024. The largest total came from AstraZeneca Pharmaceuticals LP.
How long has Dr. Ryan Obarzanek been practicing?
Dr. Obarzanek's NPI was assigned in 2018.
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