COVID-19EnterovirusEnterovirus A, Human
Dr. Alexander Tarr, DO
NPI1649899394
- Part D claims, 2024
- 21
- Publications
- 63
- Industry payments
- $408
- State licenses
- 2
- Year NPI issued
- 2020
- Practice address
- 565 Coal Valley Rd, Clairton, PA 15025
- Practice phone
- Call (412) 359-3131
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Tarr's professional email, personal email and mobile number
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Dr. Alexander Tarr is an infectious disease specialist in Clairton, Pennsylvania
Dr. Tarr practices in Clairton, Pennsylvania.
Dr. Tarr's NPI, 1649899394, was assigned on April 13, 2020. Dr. Tarr holds Pennsylvania license OT020210.
NPI and contact details
- NPI
- 1649899394NPI Registry (opens in a new tab)
- NPI enumeration date
- April 13, 2020
- NPI status
- Active
- Practice phone
- (412) 359-3131
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); and Dmand AI Professional Profile Data
Dr. Alexander Tarr's practice address is in Clairton, Pennsylvania
Dr. Tarr's practice address in the NPI Registry is 565 Coal Valley Rd, Clairton, PA 15025, in Allegheny County. The practice phone is (412) 359-3131.
- NPI Registry address565 Coal Valley Rd, Clairton, PA 15025 · Allegheny CountyPhone(412) 359-3131
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dmand AI tracks the EHR system at Dr. Alexander Tarr's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Tarr practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Dr. Tarr's practice | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Alexander Tarr is one of 455 infectious disease specialists in Pennsylvania
Infectious disease is Dr. Tarr's primary specialty in the NPI Registry, under taxonomy code 207RI0200X. Dmand AI has Dr. Tarr's licenses on file in 2 states: Pennsylvania and Florida.
Specialties and state licenses
- Infectious disease, PennsylvaniaPrimary
- Internal medicine, Florida
Infectious disease specialists near Dr. Tarr
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. Alexander Tarr's patients have a median age of 62
Across all payers, Dmand AI patient panel data puts Dr. Tarr's median patient age at 62, with 50% women.
Dr. Tarr'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
- Women50%
- Men50%
Source: Dmand AI Patient Panel Data
Dr. Alexander Tarr wrote 21 Medicare Part D claims in 2024
In 2024, Dr. Tarr wrote 21 Medicare Part D claims. 90% of them were for generic drugs. They cover 2 drugs, with $133 in total drug cost. In 2020, CMS named 12 claims across 1 drug.
Part D claims, 202421
Drugs named by CMS2
Total drug cost$133
Dr. Tarr's Part D claims by kind of drug, 2024
- Generic19 claims90%
- Brand-name and other2 claims10%
Dr. Tarr'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.
Drug classes CMS tracks in Dr. Tarr's Part D claims, 2024
- Antibiotics76%16 of 21 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, 2020 to 2021
- 2020
- 2021
- Claims for drugs CMS names
- 2020: 122021: 29142%
Drugs named by CMS: 2 in 2021, 1 in 2020.
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
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Dr. Alexander Tarr has 63 publications on record
Dmand AI links 63 papers to Dr. Tarr, published from 2010 to 2024. 2020 was the busiest year, with 8. The most frequent topics are Hepacivirus, Viral Envelope Proteins and Hepatitis C. Dr. Tarr has published most often in J Gen Virol. Dr. Tarr's most frequent co-authors are Aditi Nag, MD, Todd L. Allen, MD and Steven Kh Foung, MD.
Papers63
Years published2010 to 2024
Dr. Tarr's papers by year, 2015 to 2024
Topics Dr. Tarr writes about most
- Hepacivirus
- Viral Envelope Proteins
- Hepatitis C
- Hepatitis C Antibodies
- Antibodies, Neutralizing
- HEK293 Cells
- Virus Internalization
- Genotype
Dr. Tarr's most frequent co-authors
Recent publications by Dr. Tarr
Proc Natl Acad Sci U S A
Angiotensin-Converting Enzyme 2Chlorocebus aethiopsCOVID-19
Antibodies, ViralCommunicable Disease ControlCOVID-19
See who Dr. Tarr researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Tarr 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. Alexander Tarr received $408 in industry payments from 2020 to 2024
CMS Open Payments shows 17 general payments to Dr. Tarr from 11 drug and device companies from 2020 to 2024. Food and beverage make up the largest share, 100% of the total. Janssen Pharmaceuticals, Inc paid the most, $147.
General payments to Dr. Tarr by program year, 2020 to 2024
Companies that paid Dr. Tarr the most, 2020 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Alexander Tarr'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 |
| 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)Medicare Part D Prescribers - by Provider (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. Alexander Tarr
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. Alexander Tarr's NPI number?
Dr. Alexander Tarr's NPI number is 1649899394. It was assigned on April 13, 2020, and it is active in the NPI Registry.
What kind of doctor is Dr. Alexander Tarr?
Dr. Alexander Tarr is an infectious disease specialist in Clairton, Pennsylvania. The primary specialty in the NPI Registry is Infectious Disease Physician (taxonomy code 207RI0200X).
Where does Dr. Alexander Tarr practice?
Dr. Tarr practices at 565 Coal Valley Rd, Clairton, PA 15025.
What is Dr. Alexander Tarr's office phone number?
The practice phone on file for Dr. Tarr is (412) 359-3131.
What is Dr. Alexander Tarr's medical license number?
Dr. Tarr holds Pennsylvania license OT020210, one of the licenses on file in 2 states.
Which states has Dr. Alexander Tarr been licensed in?
Dmand AI has state licenses on file for Dr. Tarr in Pennsylvania and Florida.
What drugs does Dr. Alexander Tarr prescribe most?
In 2021 Medicare Part D data, Dr. Tarr's most prescribed drugs by claims were Atorvastatin Calcium and Metoprolol Tartrate.
Has Dr. Alexander Tarr received payments from drug or device companies?
CMS Open Payments shows $408 in general payments to Dr. Tarr from 11 companies from 2020 to 2024. The largest total came from Janssen Pharmaceuticals, Inc.
How long has Dr. Alexander Tarr been practicing?
Dr. Tarr's NPI was assigned in 2020.
Does Dr. Alexander Tarr do research?
Dmand AI links 63 publications to Dr. Tarr, published from 2010 to 2024.
Who does Dr. Alexander Tarr publish with?
Dr. Tarr's most frequent co-authors are Aditi Nag, MD (2 shared papers), Todd L. Allen, MD (1 shared paper) and Steven Kh Foung, MD (1 shared paper).
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