NPPES file of Aug 9, 2026

Alexander A. Lemmer, M.D.

Transplant Hepatology Physician · Atlanta, GA

Alexander A. Lemmer, M.D. is a transplant hepatology physician with a practice address in Atlanta, Georgia, and NPI 1104168681, issued on Mar 21, 2013. Check the license (Georgia 84644, as entered in NPPES) on the Georgia Composite Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1104168681
Name
Alexander A. Lemmer
Credential
M.D.
Primary taxonomy
Transplant Hepatology Physician 207RT0003X
License numbers
84644 GA
036.139115 IL
Self-reported in NPPES; status is on the state search
Practice location
1968 Peachtree RD NW Bldg 77, 5TH Flr, Atlanta, GA 30309
Phone
(404) 605-4600
Enumerated
Mar 21, 2013
Record last updated
Jul 24, 2020 (not updated in 6 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20200710000836); accepts Medicare assignment
Medical or professional school
University Of Virginia School Of Medicine, 2013
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Verify Alexander A. Lemmer in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersGeorgia Composite Medical Board
    Search for license 84644
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Georgia license search

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2.2 times the Medicare Part D claims of the average transplant hepatology physician in 2024

1,442 Medicare Part D claims for 210 beneficiaries, against an average of 669 among the 251 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims.

  1. Alexander Lemmer1,442
  2. Specialty average669

Most prescribed

  1. Ursodiol130 claims
  2. Spironolactone123 claims
  3. Mycophenolate Mofetil88 claims
  4. Tacrolimus80 claims
  5. Furosemide74 claims
  6. Prednisone74 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): 98.5 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.

  1. Qualitynot scored (reweighted)
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%98.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $647.98

28 payments; by number, the most common kind was food and beverage; the largest payer was Gilead Sciences, Inc. The 193 providers of this specialty with any payment received $10,299.21 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Alexander Lemmer$648
  2. Specialty average$10,299

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Piedmont Providers LLCAtlanta, GA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Transplant Hepatology Physician providers in Georgia

There are 7 transplant hepatology physician records in Georgia.

Other transplant hepatology physician records in Georgia

  1. Devina Bhasin, MDAtlanta, GA1063607109
  2. Giorgio Roccaro, MD MSCEAtlanta, GA1205121985
  3. Raymond Rubin, M.D.Atlanta, GA1033113691
  4. Shivani Shah, MDAtlanta, GA1356878896
  5. Lance Stein, MDAtlanta, GA1568558062
  6. Ravi Vora, MDAtlanta, GA1295025237

Common questions

What is Alexander A. Lemmer, M.D.'s NPI number?

Alexander A. Lemmer, M.D.'s National Provider Identifier (NPI) is 1104168681, issued on Mar 21, 2013. An NPI identifies a provider in billing; it is not a license.

Where is Alexander A. Lemmer, M.D. located?

The NPPES record lists a practice address at 1968 Peachtree RD NW Bldg 77, 5TH Flr, Atlanta, GA, 30309. Phone: (404) 605-4600. Providers update this record themselves, so call before visiting.

How can I verify Alexander A. Lemmer, M.D.'s license?

NPPES lists Georgia license number 84644, as entered by the provider. Search the Georgia Composite Medical Board at https://medicalboard.georgia.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Alexander A. Lemmer, M.D. prescribe under Medicare Part D?

In 2024, Alexander A. Lemmer, M.D. had 1,442 Medicare Part D claims for 210 beneficiaries; the average among transplant hepatology physician prescribers was 669. Part D covers Medicare prescriptions only.

What is Alexander A. Lemmer, M.D.'s MIPS final score?

The 2023 MIPS final score is 98.5 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.