Dr. John Alexander Viehman, MD
- Medicare services, 2024
- 109
- Medicare patients, 2024
- 76
- Part D claims, 2024
- 413
- Publications
- 5
- MIPS score, 2024
- 81
- Practice address
- 200 Lothrop Street, Pittsburgh, PA 15213
- Practice phone
- Call (412) 647-2345
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Viehman's professional email, personal email and mobile number
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Dr. John Alexander Viehman is an infectious disease specialist in Pittsburgh, Pennsylvania
Dr. Viehman practices at UPMC Presbyterian in Pittsburgh, Pennsylvania, part of University of Pittsburgh Medical Center.
Dr. Viehman's NPI, 1629205877, was assigned on June 15, 2009. Dr. Viehman graduated from Temple University School of Medicine in 2009. Dr. Viehman holds Pennsylvania license MD453968.
- NPI
- 1629205877NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8224293311
- NPI enumeration date
- June 15, 2009
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (412) 647-2345
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 43
- Medical school graduation
- 2009
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. John Alexander Viehman practices at UPMC Presbyterian in Pittsburgh, Pennsylvania
Dr. Viehman's primary practice is UPMC Presbyterian, at 200 Lothrop Street, Pittsburgh, PA 15213 in Allegheny County. The practice phone is (412) 647-2345.
- UPMC Presbyterian200 Lothrop Street, Pittsburgh, PA 15213 · Allegheny CountyPhone(412) 647-2345
Source: Dmand AI Affiliation Data
Dr. John Alexander Viehman is affiliated with 6 sites of care and 1 medical group
Dr. Viehman's primary practice is UPMC Presbyterian in Pittsburgh, Pennsylvania, part of University of Pittsburgh Medical Center. Dr. Viehman is also affiliated with Select Specialty Hospital - Pittsburgh / UPMC. The medical group on file is University of Pittsburgh Physicians, Department of Radiology. Dmand AI also links Dr. Viehman to 3 more hospitals and 1 group practice or clinic, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. John Alexander Viehman's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Viehman practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| UPMC Presbyterian | Available with a free account |
| +5 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. John Alexander Viehman is one of 455 infectious disease specialists in Pennsylvania
Infectious disease is Dr. Viehman's primary specialty in the NPI Registry, under taxonomy code 207RI0200X. Dr. Viehman is licensed in Pennsylvania.
Specialties and state licenses
- Infectious disease, PennsylvaniaPrimary
Infectious disease specialists near Dr. Viehman
Counts of infectious disease specialists 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. John Alexander Viehman billed Medicare for 109 services in 2024
CMS data shows 109 Medicare services from Dr. Viehman across 6 procedure codes in 2024, for 76 Medicare patients. Medicare paid $9,024 for them.
Dr. Viehman's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2012024: 10946%
Where Dr. Viehman's Medicare services took place, 2024
- In an office3431%
- In a facility7569%
Dr. Viehman compared with the Pennsylvania median for infectious disease specialists, 2024
- Dr. Viehman
- Pennsylvania median
- Medicare services
- 109vs 30264% below
- Medicare patients
- 76vs 14849% below
- Part D claims
- 308vs 1502.1 times
Medians across 430 infectious disease specialists in Pennsylvania with Dmand AI profiles that report each measure.
Dr. Viehman'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. Viehman and other infectious disease specialists in Pennsylvania.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. John Alexander Viehman treated 76 Medicare patients in 2024, average age 68
CMS counts 76 Medicare patients who saw Dr. Viehman in 2024. The largest group is 65 to 74, with 31 patients. 75% of them have high blood pressure, and 70% have high cholesterol. 21% are also on Medicaid. Their average risk score is 2.66, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Viehman's median patient age at 71, with 68% women.
Dr. Viehman's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Viehman's Medicare patients by sex, 2024
- Women4255%
- Men3445%
Chronic conditions among Dr. Viehman's Medicare patients, 2024
- High blood pressure75%
- High cholesterol70%
- Arthritis66%
- Anxiety57%
- Mood disorders50%
- Depression47%
- Diabetes43%
- COPD39%
Share of Medicare patients with each condition. A patient can have several.
Dr. Viehman'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
- Women68%
- Men32%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. John Alexander Viehman wrote 413 Medicare Part D claims in 2024
In 2024, Dr. Viehman wrote 413 Medicare Part D claims for 80 patients. 97% of them were for generic drugs. CMS names the drug for 308 of them, across 15 drugs with 11 or more claims each, at $13,135 in total drug cost. In 2023, CMS named 211 claims across 10 drugs.
Dr. Viehman's Part D claims by kind of drug, 2024
- Generic401 claims97%
- Brand-name12 claims3%
Dr. Viehman'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. Viehman's Part D claims, 2024
- Antibiotics84%348 of 413 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: 2112024: 30846%
Drugs named by CMS: 15 in 2024, 10 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. John Alexander Viehman scored 81 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 81 out of 100 for Dr. Viehman for performance year 2024, reported as part of a group. Dr. Viehman accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Viehman as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Dr. Viehman's MIPS scores, performance year 2024
- 81of 100Final score
- 61.9of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 75of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. John Alexander Viehman has 5 publications on record
Dmand AI links 5 papers to Dr. Viehman, published from 2016 to 2025. The most frequent topics are Anti-Bacterial Agents and Drug Resistance, Multiple, Bacterial. Dr. Viehman's most frequent co-authors are Kathleen R. Sheridan, DO, Michael Gary Abesamis, MD and Karin E. Byers, MD.
Dr. Viehman's papers by year, 2016 to 2025
Topics Dr. Viehman writes about most
- Anti-Bacterial Agents
- Drug Resistance, Multiple, Bacterial
Dr. Viehman's most frequent co-authors
- Kathleen R. Sheridan, DO2 shared papers
- Michael Gary Abesamis, MD1 shared paper
- Karin E. Byers, MD1 shared paper
Recent publications by Dr. Viehman
Antimicrob Agents Chemother
See who Dr. Viehman researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Viehman works with, so you can find a warm path to the right infectious disease specialists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. John Alexander Viehman graduated from Temple University School of Medicine
Dr. Viehman graduated from Temple University School of Medicine in 2009.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. John Alexander Viehman'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)Clinician Public Reporting: Overall MIPS Performance (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 |
| 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. John Alexander Viehman
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. John Alexander Viehman's NPI number?
Dr. John Alexander Viehman's NPI number is 1629205877. It was assigned on June 15, 2009, and it is active in the NPI Registry.
What kind of doctor is Dr. John Alexander Viehman?
Dr. John Alexander Viehman is an infectious disease specialist in Pittsburgh, Pennsylvania. The primary specialty in the NPI Registry is Infectious Disease Physician (taxonomy code 207RI0200X).
Where does Dr. John Alexander Viehman practice?
Dr. Viehman practices at 200 Lothrop Street, Pittsburgh, PA 15213. Dr. Viehman's primary practice is UPMC Presbyterian in Pittsburgh, Pennsylvania, part of University of Pittsburgh Medical Center. Dmand AI also links Dr. Viehman to 3 hospitals and 1 group practice or clinic.
What is Dr. John Alexander Viehman's office phone number?
The practice phone on file for Dr. Viehman is (412) 647-2345.
What is Dr. John Alexander Viehman's medical license number?
Dr. Viehman holds Pennsylvania license MD453968.
Which hospitals is Dr. John Alexander Viehman affiliated with?
Dr. Viehman practices at UPMC Presbyterian in Pittsburgh, Pennsylvania. Dr. Viehman is also affiliated with Select Specialty Hospital - Pittsburgh / UPMC. Dmand AI links Dr. Viehman to 3 more hospitals.
What medical group is Dr. John Alexander Viehman part of?
Dr. Viehman is linked to University of Pittsburgh Physicians, Department of Radiology.
Does Dr. John Alexander Viehman accept Medicare?
Yes. CMS data shows Dr. Viehman billed Medicare for 109 services in 2024, and Dr. Viehman accepts Medicare assignment.
Does Dr. John Alexander Viehman offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Viehman as offering telehealth services.
What is Dr. John Alexander Viehman's MIPS score?
Dr. Viehman's MIPS final score for performance year 2024 is 81 out of 100, reported as part of a group.
Show 7 more questionsShow fewer questions
How many Medicare patients does Dr. John Alexander Viehman see?
CMS counts 76 Medicare patients who saw Dr. Viehman in 2024, with an average age of 68.
What services does Dr. John Alexander Viehman bill to Medicare?
In 2024, Dr. Viehman's most billed Medicare services were hospital inpatient care (99232), office visit, established patient (99214) and hospital inpatient care (99233).
Where did Dr. John Alexander Viehman go to medical school?
Dr. Viehman graduated from Temple University School of Medicine in 2009.
What drugs does Dr. John Alexander Viehman prescribe most?
In 2024 Medicare Part D data, Dr. Viehman's most prescribed drugs by claims were Amikacin Sulfate, Ampicillin Sodium and Amoxicillin.
How long has Dr. John Alexander Viehman been practicing?
Dr. Viehman graduated from medical school in 2009, 17 years ago.
Does Dr. John Alexander Viehman do research?
Dmand AI links 5 publications to Dr. Viehman, published from 2016 to 2025.
Who does Dr. John Alexander Viehman publish with?
Dr. Viehman's most frequent co-authors are Kathleen R. Sheridan, DO (2 shared papers), Michael Gary Abesamis, MD (1 shared paper) and Karin E. Byers, MD (1 shared paper).
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