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ALEX M GEIGER MD, MPH
NPI 1124530316
Internal Medicine in Baltimore, MD

Active since October 29, 2017PECOS Enrolled
1111 N CHARLES ST, BALTIMORE, MD 21201(410) 837-2050 Get Directions Write a Review

NPPES record last updated: June 9, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Jun 9, 2025, Jun 5, 2025, May 8, 2025 and 2 more (5 updates tracked since 2017).

About Alex M Geiger Md, Mph NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

ALEX M GEIGER MD, MPH (NPI 1124530316) is an individual internal medicine provider in Baltimore, Maryland, licensed in Maryland (D0103178) and active in the NPI registry since October 2017. He is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of University Of Arizona College Of Medicine (2018).

NPPES Registry Identity

NPI1124530316
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameALEX M GEIGERCredential: MD, MPH
Location Address1111 N CHARLES STBaltimore, MD 21201-5505
Mailing Address1111 N Charles StBaltimore, MD 21201-5505 · (410) 837-2050
Phone(410) 837-2050
Sole ProprietorNo
Medical School CMSUniversity Of Arizona College Of MedicineGraduated 2018
Enumeration DateOctober 29, 2017
Last NPPES UpdateJune 9, 20255 updates tracked since enumeration
NPPES CertifiedJune 9, 2025
✔ NPI 1124530316 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
Licenses✔ Licensed in MD · D0103178✔ Licensed in IN · 11020024A
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
Also ListedPediatricsTaxonomy 208000000X · License 11020024A (IN), D0103178 (MD)
1111 N CHARLES ST, Baltimore, MD 21201
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Secondary Practice Locations 2

Location 1811 W 2nd StBloomington, IN 47403-2212 · Phone (812) 333-4001
Location 21522 W Morris StIndianapolis, IN 46221-1629 · Phone (317) 310-3192

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Buckeye Health Plan, Ambetter from Meridian, Ambetter Health and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Alex M Geiger Md, Mph is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID5991050940
PECOS Enrollment IDI20220727001854, I20250723002041
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 21201 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$139.05 typical visit price
range $60.73 – $183.44
Typical copayment $34.76 (range $15.18 – $45.86)
Most-billed visit code 99204
Established Patient
$106.59 typical visit price
range $19.60 – $149.17
Typical copayment $26.64 (range $4.90 – $37.29)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DAVID A CORNELL DNP, ARNP
Nurse Practitioner (Family)
1111 N CHARLES ST
BALTIMORE, MD 21201
Baltimore City (515) 291-3283
STELLA IJIYODE FNP-C
Nurse Practitioner (Family)
1111 N CHARLES ST
BALTIMORE, MD 21201
Baltimore City (410) 837-2050
DR. EMILY ANN SILVERMAN PH.D.
Psychologist (Clinical)
1111 N CHARLES ST
BALTIMORE, MD 21201
Baltimore City (410) 837-2050
MRS. AFRICA ALVAREZ-MCLEOD M.D.
Internal Medicine (Infectious Disease)
1111 N CHARLES ST
BALTIMORE, MD 21201
Baltimore City (410) 837-2050
DHANASHREE CHADA
Counselor (Professional)
1111 N CHARLES ST
BALTIMORE, MD 21201
Baltimore City (410) 837-2050
YOUNGHO KIM
Nurse Practitioner (Family)
1111 N CHARLES ST
BALTIMORE, MD 21201
Baltimore City (410) 837-2050
CHRISTOPHER ANDREW REEVES
Social Worker (Clinical)
1111 N CHARLES ST
BALTIMORE, MD 21201
Baltimore City (410) 837-2050
MS. KEM JACQUELINE JOHNSON MS, MED, CNS, LDN
Nutritionist
1111 N CHARLES ST
BALTIMORE, MD 21201
Baltimore City (410) 837-2050

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Alex Geiger's NPI number?

The NPI number for Alex Geiger is 1124530316. It was assigned to this individual provider in the NPPES registry on October 29, 2017.

Where is Alex Geiger located?

Alex Geiger practices at 1111 N Charles St, Baltimore, MD 21201. The listed phone number is (410) 837-2050.

What is Alex Geiger's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Alex Geiger enrolled in Medicare?

Yes. Alex Geiger is registered in the Medicare PECOS enrollment system.

What insurance does Alex Geiger accept?

Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian and CareSource list Alex Geiger as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Alex Geiger was last updated on June 9, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.