Alex M. Geiger, MD, MPH
Internal Medicine Physician · Baltimore, MD
Alex M. Geiger, MD, MPH is an internal medicine physician with a practice address in Baltimore, Maryland, and NPI 1124530316, issued on Oct 29, 2017. Check the license (Maryland D0103178, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.
- Name
- Alex M. Geiger
- Credential
- MD, MPH
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- D0103178 MD
11020024A IN
Self-reported in NPPES; status is on the state search - Practice location
- 1111 N Charles St, Baltimore, MD 21201
- Phone
- (410) 837-2050
- Enumerated
- Oct 29, 2017
- Record last updated
- Jun 9, 2025
- Medicare enrollment
- Enrolled (PECOS I20250723002041); may accept Medicare assignment
- Medical or professional school
- University Of Arizona College Of Medicine, 2018
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 3,904 in Maryland → Look up another NPI →
Also registered at 1111 N Charles St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Alex M. Geiger in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of Physicians
Search for license D0103178Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
11% more Medicare Part D claims than the average internal medicine physician in 2024
3,514 Medicare Part D claims for 167 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 17% of claims. 299 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen202 claims
- Atorvastatin Calcium201 claims
- Amlodipine Besylate110 claims
- Lisinopril107 claims
- Albuterol Sulfate Hfa94 claims
- Losartan Potassium81 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.
Industry payments in 2024: $51.22
2 payments; by number, the most common kind was food and beverage; the largest payer was Gilead Sciences, Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 2 group practices
- Chase Brexton Health Services IncBaltimore, MD
- Healthnet IncIndianapolis, IN
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Alex M. Geiger among 3,904 internal medicine physician records in Maryland
Alex M. Geiger, MD, MPH is one of 3,904 internal medicine physician records with a practice address in Maryland. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 81% of them.
- NPI issued2017 · 81% of these records are older, 16% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2018 · median 2003 among the 2,445 with a school on file
- Record last updated2025 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
1,278 internal medicine physician records list a practice address in Baltimore
They are 1,278 of the 35,183 NPPES records with a practice address in Baltimore, and 3,904 internal medicine physician records in Maryland.
All 3,904 in Maryland → Every provider in Baltimore → Internal Medicine Physician nationwide →
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- Marcia Kane, MDBaltimore, MD 212011770564254
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Common questions
What is Alex M. Geiger, MD, MPH's NPI number?
Alex M. Geiger, MD, MPH's National Provider Identifier (NPI) is 1124530316, issued on Oct 29, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Alex M. Geiger, MD, MPH located?
The NPPES record lists a practice address at 1111 N Charles St, Baltimore, MD, 21201. Phone: (410) 837-2050. Providers update this record themselves, so call before visiting.
How can I verify Alex M. Geiger, MD, MPH's license?
NPPES lists Maryland license number D0103178, as entered by the provider. Search the Maryland Board of Physicians at https://www.mbp.state.md.us/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Alex M. Geiger, MD, MPH prescribe under Medicare Part D?
In 2024, Alex M. Geiger, MD, MPH had 3,514 Medicare Part D claims for 167 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
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.