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ALEXANDER MATTHEW HAHN
NPI 1518329648
Orthopaedic Surgery in Baltimore, MD

Active since March 28, 2016PECOS EnrolledAccepts Medicare Assignment
110 S PACA ST, FLOOR 6, STE 300, BALTIMORE, MD 21201(410) 448-6400 Get Directions Write a Review

NPPES record last updated: November 24, 2024. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Nov 24, 2024, Jul 12, 2016, Mar 28, 2016 (3 updates tracked since 2016).

About Alexander Matthew Hahn NPPES

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

ALEXANDER MATTHEW HAHN (NPI 1518329648) is an individual orthopaedic surgery provider in Baltimore, Maryland, licensed in Maryland (D0093580) and active in the NPI registry since March 2016. He is enrolled in Medicare PECOS, is affiliated with University Of Maryland Medical Center, and is a graduate of Temple University School Of Medicine (2016).

NPPES Registry Identity

NPI1518329648
Entity TypeIndividualMale
Primary Taxonomy207X00000X
Provider Legal NameALEXANDER MATTHEW HAHN
Location Address110 S PACA ST, FLOOR 6, STE 300Baltimore, MD 21201-1642
Mailing Address110 S Paca St, Floor 6, Ste 300Baltimore, MD 21201-1642
Phone(410) 448-6400
Sole ProprietorNo
Medical School CMSTemple University School Of MedicineGraduated 2016
Enumeration DateMarch 28, 2016
Last NPPES UpdateNovember 24, 20243 updates tracked since enumeration
NPPES CertifiedNovember 24, 2024
✔ NPI 1518329648 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOrthopaedic SurgeryAllopathic & Osteopathic Physicians
Taxonomy Code207X00000X
License✔ Licensed in MD · D0093580
Definition
An orthopaedic surgeon is trained in the preservation, investigation and restoration of the form and function of the extremities, spine and associated structures by medical, surgical and physical means. An orthopaedic surgeon is involved with the care of patients whose musculoskeletal problems include congenital deformities, trauma, infections, tumors, metabolic disturbances of the musculoskeletal system, deformities, injuries and degenerative diseases of the spine, hands, feet, knee, hip, shoulder and elbow in children and adults. An orthopaedic surgeon is also concerned with primary and secondary muscular problems and the effects of central or peripheral nervous system lesions of the musculoskeletal system.
110 S PACA ST, Baltimore, MD 21201
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Alexander Matthew Hahn is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID9739475625
PECOS Enrollment IDI20221010003362, I20230311000047
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.

Medicare Billing Reassignments

2

Medicare enrollment records show Alexander Hahn reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

University Of Maryland Orthopaedic Associates P A
0.1 mi
Pediatric Orthopaedic Surgery
22 S GREENE ST
Baltimore, MD 21201
  • Reassigned Medicare billing, District of Columbia and Maryland enrollments
  • Medicare enrollment name: University Of Maryland Orthopaedic Associates PA
  • 45 clinicians in this Medicare group
NPI 1740235274 (667) 214-2732
University Of Maryland Orthopaedic Trauma Associates, PA
0.2 mi
Orthopaedic Trauma
22 S GREENE ST
Baltimore, MD 21201
  • Reassigned Medicare billing, Maryland enrollment
  • Medicare enrollment name: University Of Maryland Orthopaedic Trauma Associates, P.A.
  • 56 clinicians in this Medicare group
NPI 1497708051 (410) 328-6040

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 7

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Injection, triamcinolone acetonide, not otherwise specified, 10 mg J3301
Triamcinolone acetonide is a medication used to reduce inflammation in the body. It's given as a 10 mg injection for conditions like allergies, arthritis, or skin problems. The injection helps to decrease swelling, redness, and itching.
94 services19 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
71 services55 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
53 services46 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
24 services24 patients
Injection into tendon or ligament 20550
An injection into a tendon or ligament involves placing medication directly into these areas to help reduce inflammation and pain. It's often used for conditions like arthritis or tendonitis. The procedure is quick and usually involves a local anesthetic.
21 services18 patients
New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203
This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.
18 services18 patients

Hospital Affiliations CMS Care Compare 4

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

University Of Maryland Medical Center

Acute Care Hospitals · Baltimore, MD
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number210002
Location22 South Greene StreetBaltimore, MD 21201 · Baltimore City County
Emergency services Birthing friendly

University Of MD Capital Region Medical Center

Acute Care Hospitals · Upper Marlboro, MD
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number210003
Location901 North Harry S Truman DriveUpper Marlboro, MD 20774 · Prince Georges County
Emergency services Birthing friendly

University Of MD Medical Center Midtown Campus

Acute Care Hospitals · Baltimore, MD
3/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number210038
Location827 Linden AvenueBaltimore, MD 21201 · Baltimore City County
Emergency services

Umd Rehabilitation & Orthopaedic Institute

Acute Care Hospitals · Baltimore, MD
OwnershipVoluntary non-profit - Private
CMS Certification Number210058
Location2200 Kernan DriveBaltimore, MD 21207 · Baltimore County

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
$94.08 typical visit price
range $60.73 – $183.44
Typical copayment $23.52 (range $15.18 – $45.86)
Most-billed visit code 99203
Established Patient
$75.47 typical visit price
range $19.60 – $149.17
Typical copayment $18.86 (range $4.90 – $37.29)
Most-billed visit code 99213
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.

DR. JASJIT B ATWAL M.D.
Anesthesiology
110 S PACA ST, SUITE 300 6TH FL
BALTIMORE, MD 21201
Baltimore City (410) 328-6720
SIAMAK MOAYEDI M.D.
Emergency Medicine
110 S PACA ST, SIXTH FLOOR, SUITE 200
BALTIMORE, MD 21201
Baltimore City (410) 328-8025
JUDY PAN MD
Otolaryngology (Plastic Surgery within the Head & Neck)
110 S PACA ST
BALTIMORE, MD 21201
Baltimore City (410) 328-3058
JOHNS HOPKINS COMMUNITY PHYSICIANS, INC
Internal Medicine
110 S PACA ST
BALTIMORE, MD 21201
Baltimore City (410) 955-5000
DR. ILEANA GHEORGHIU M.D.
Anesthesiology
110 S PACA ST, SUITE 300 6TH FL
BALTIMORE, MD 21201
Baltimore City (410) 328-6720
MAELEE GRACE WILLIAMSON MD
Student in an Organized Health Care Education/Training Program
110 S PACA ST, 6TH FLOOR, SUITE 200
BALTIMORE, MD 21201
Baltimore City (667) 214-2208
DR. SHOBANA BHARADWAJ M.D.
Anesthesiology
110 S PACA ST, SUITE 300 6TH FL
BALTIMORE, MD 21201
Baltimore City (410) 328-6720
DR. SEEMA P. DESHPANDE MBBS
Anesthesiology
110 S PACA ST, SUITE 300, 6TH FLOOR
BALTIMORE, MD 21201
Baltimore City (410) 328-6331

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 Alexander Hahn's NPI number?

The NPI number for Alexander Hahn is 1518329648. It was assigned to this individual provider in the NPPES registry on March 28, 2016.

Where is Alexander Hahn located?

Alexander Hahn practices at 110 S Paca St Floor 6, Ste 300, Baltimore, MD 21201. The listed phone number is (410) 448-6400.

What is Alexander Hahn's specialty?

The primary specialty registered for this NPI is Orthopaedic Surgery with taxonomy code 207X00000X.

Is Alexander Hahn enrolled in Medicare?

Yes. Alexander Hahn is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Alexander Hahn's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Alexander Hahn reassigns Medicare benefits to 2 organizations: University Of Maryland Orthopaedic Associates P A (Baltimore, MD) and University Of Maryland Orthopaedic Trauma Associates, PA (Baltimore, MD). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Alexander Hahn's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Alexander Hahn affiliated with any hospitals?

According to CMS data, Alexander Hahn is affiliated with University Of Maryland Medical Center, University Of MD Capital Region Medical Center, University Of MD Medical Center Midtown Campus and Umd Rehabilitation & Orthopaedic Institute.

When was this NPI record last updated?

The NPPES record for Alexander Hahn was last updated on November 24, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 23 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.