Tamara Alisa Mahr, MD
Critical Care Medicine (Internal Medicine) Physician · Philadelphia, PA
Tamara Alisa Mahr, MD is a critical care medicine (internal medicine) physician with a practice address in Philadelphia, Pennsylvania, and NPI 1124184890, issued on Dec 28, 2006. Check the license (Pennsylvania MD437492, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- Tamara Alisa Mahr
- Credential
- MD
- Primary taxonomy
- Critical Care Medicine (Internal Medicine) Physician 207RC0200X
- License numbers
- MD437492 PA
MT184280 PA
Self-reported in NPPES; status is on the state search - Practice location
- 800 Spruce St, Philadelphia, PA 19107
- Phone
- (215) 829-5933
- Enumerated
- Dec 28, 2006
- Record last updated
- Sep 19, 2019 (not updated in 7 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20100527000733); accepts Medicare assignment
- Medical or professional school
- Rutgers R W Johnson Medical School (Cam/New Bruns/Pisc), 2004
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest critical care medicine (internal medicine) physician records → All 332 in Pennsylvania → Look up another NPI →
Also registered at 800 Spruce St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Ahmad Abdalla, MDInternal Medicine Physician1730981127
- Annabelle Abdo, DOObstetrics & Gynecology Physician1518583665
- Omar AbdounStudent in an Organized Health Care Education/Training Program1669260279
- Monica Aber, CRNPAcute Care Nurse Practitioner1922876820
- Jennifer Acquaviva, MPTSpecialist1346366820
- Sarah Adams, DOStudent in an Organized Health Care Education/Training Program1184327108
Verify Tamara Alisa Mahr in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license MD437492Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.1 times the Medicare Part D claims of the average critical care medicine (internal medicine) physician in 2024
2,159 Medicare Part D claims for 244 beneficiaries, against an average of 696 among the 2,873 providers of this specialty who prescribed in Part D. 17 claims were for opioids.
Most prescribed
- Prednisone263 claims
- Albuterol Sulfate Hfa205 claims
- Montelukast Sodium119 claims
- Breo Ellipta103 claims
- Spiriva Respimat96 claims
- Fluticasone Propionate94 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's MIPS final score for 2023 (Medicare payment program): 85.5 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- University OF Penn - Medical GroupPhiladelphia, PA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Tamara Alisa Mahr among 332 critical care medicine (internal medicine) physician records in Pennsylvania
Tamara Alisa Mahr, MD is one of 332 critical care medicine (internal medicine) physician records with a practice address in Pennsylvania. 92% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 4% of them.
- NPI issued2006 · 4% of these records are older, 67% newer
- In a Medicare fileYes · 92% of these records are
- In the CMS Doctors and Clinicians fileYes · 85% of these records are
- Graduated2004 · median 2007 among the 282 with a school on file
- Record last updated2019 · 48% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0200X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Critical Care Medicine (Internal Medicine) Physician providers in Pennsylvania
There are 332 critical care medicine (internal medicine) physician records in Pennsylvania.
All 332 in Pennsylvania → Every provider in Philadelphia → Critical Care Medicine (Internal Medicine) Physician nationwide →
The 8 critical care medicine (internal medicine) physician records with the nearest ZIP codes
- Lauren Catalano, MDPhiladelphia, PA 191071417118415
- Robert Hilton, M.D.Philadelphia, PA 191071417496035
- Sara Kass-Gergi, MDPhiladelphia, PA 191071053844373
- Paul Kinniry, MDPhiladelphia, PA 191071427006675
- Ron Leong, M.D.Philadelphia, PA 191071851738538
- Nikhil MadanPhiladelphia, PA 191071275794448
- David Oxman, MDPhiladelphia, PA 191071306826680
- Sonia Rao, MDPhiladelphia, PA 191071811635279
Common questions
What is Tamara Alisa Mahr, MD's NPI number?
Tamara Alisa Mahr, MD's National Provider Identifier (NPI) is 1124184890, issued on Dec 28, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Tamara Alisa Mahr, MD located?
The NPPES record lists a practice address at 800 Spruce St, Philadelphia, PA, 19107. Phone: (215) 829-5933. Providers update this record themselves, so call before visiting.
How can I verify Tamara Alisa Mahr, MD's license?
NPPES lists Pennsylvania license number MD437492, as entered by the provider. Search the Pennsylvania Department of State (PALS) at https://www.pals.pa.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Tamara Alisa Mahr, MD prescribe under Medicare Part D?
In 2024, Tamara Alisa Mahr, MD had 2,159 Medicare Part D claims for 244 beneficiaries; the average among critical care medicine (internal medicine) physician prescribers was 696. Part D covers Medicare prescriptions only.
What is Tamara Alisa Mahr, MD's MIPS final score?
The 2023 MIPS final score is 85.5 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.