MEDSTAR MEDICAL GROUP - SOUTHERN MARYLAND LLC
NPI 1316744170
Internal Medicine - Hematology & Oncology in Leonardtown, MD

NPI Status: Active since February 28, 2025

Contact Information

25500 POINT LOOKOUT ROAD
LEONARDTOWN, MD
ZIP 20650
Phone: (301) 475-8981
Fax: (301) 373-6900

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  • Organization
  • Internal Medicine
  • Hematology & Oncology

About MEDSTAR MEDICAL GROUP - SOUTHERN MARYLAND LLC

This page provides the complete NPI Profile along with additional information for Medstar Medical Group - Southern Maryland Llc, an internist established in Leonardtown, Maryland operating as a Internal Medicine, focusing in hematology & oncology . The healthcare provider is registered in the NPI registry with number 1316744170 assigned on February 2025. The practitioner's primary taxonomy code is 207RH0003X. The provider is registered as an organization and their NPI record was last updated one year ago. Medstar Medical Group - Southern Maryland Llc operates as a Multi-Specialty Group with one or more individual practitioners, who practice different areas of specialization. The provider's . The authorized official of this NPI record is Alan Adair Buster (C.o.o.)

NPI
1316744170
Provider Legal Name
MEDSTAR MEDICAL GROUP - SOUTHERN MARYLAND LLC
Other Organization Name
Other Name Type
(6)
Entity Type
Organization
Location Address
25500 POINT LOOKOUT ROAD LEONARDTOWN, MD 20650
Location Phone
(301) 475-8981
Location Fax
(301) 373-6900
Mailing Address
24035 THREE NOTCH RD HOLLYWOOD, MD 20636
Mailing Phone
(301) 373-7900
Mailing Fax
(301) 373-6900
Is Sole Proprietor?
No
Is Organization Subpart?
No
Enumeration Date
02-28-2025
Last Update Date
08-01-2025
Code Navigator

An internist like Medstar Medical Group - Southern Maryland Llc is a physician who has completed an internal medicine residency and is board-certified or board-eligible in an internist specialty. Internists are trained to care for adults of all ages for many different medical conditions. An internist typically monitors chronic physical conditions, identifies acute diseases, provides family planning, provides counseling about wellness and disease prevention, etc.

Location Map

Specialty - Primary Taxonomy

The NPI enumerator requires providers to submit at least one taxonomy code. A taxonomy code is a unique 10-character code that describes the healthcare provider type, classification, and the area of specialization. There could be only one primary taxonomy code per NPI record. For individual NPIs the license data is associated to the taxonomy code.

Classification

Internal Medicine Hematology & Oncology

Taxonomy Code
207RH0003X
Type
Allopathic & Osteopathic Physicians
Taxonomy Description
An internist doctor of osteopathy that specializes in the treatment of the combination of hematology and oncology disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine WAS able to obtain a Certificate of Special Qualifications in the field of Hematology and Oncology. The Certificate is NO longer offered.

Group Taxonomy 193200000X MULTI-SPECIALTY GROUP

This provider is a business group of one or more individual practitioners, who practice with different areas of specialization.

Authorized Official

The authorized official is the designated individual with the legal authority to make changes to the provider’s official NPI record. For organizations, the authorized official must be a general partner, chairman of the board, CEO, CFO or a direct owner holding at least a 5 percent stake in the medical organization.

Authorized Official Name

ALAN ADAIR BUSTER

Authorized Official Title
C.O.O.
Authorized Official Phone
(301) 373-7905

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NPI NPI Number Validation

How NPI Validation Works

The NPI validation process uses the ISO-standard Luhn algorithm, a mathematical "handshake", to ensure that a provider's 10-digit ID is authentic and free of common typing errors.

To verify the NPI 1316744170, we treat the final digit (0) as the Check Digit—the target answer we need to reach. The process begins by taking the first nine digits and adding a constant value of 24, which accounts for the "80840" prefix required for all U.S. health identifiers. We then double every other digit starting from the right and sum the individual digits of those results together. For this specific NPI, that total comes to 60. The final step is to find the difference between that total and the next multiple of ten (60 - 60 = 0).

Digit-by-digit view

Use the first nine digits for the calculation. Starting from the right, double every other digit. The last digit is the check digit and is not part of the calculation.

Pos 1
1
Doubled → 2
Pos 2
3
Unchanged
Pos 3
1
Doubled → 2
Pos 4
6
Unchanged
Pos 5
7
Doubled → 14 → 1 + 4
Pos 6
4
Unchanged
Pos 7
4
Doubled → 8
Pos 8
1
Unchanged
Pos 9
7
Doubled → 14 → 1 + 4
Check
0
Target digit
Regular digit Doubled digit Check digit

Step 1: Double every other digit from the right

Starting with the rightmost digit of the first nine digits, double every other value. If doubling creates a two-digit number, add those digits together.

1 → 2 1 → 2 7 → 14 → 5 4 → 8 7 → 14 → 5

Step 2: Add all digits plus the NPI constant

Add the transformed values, the unchanged digits, and the constant 24.

2 + 3 + 2 + 6 + 1 + 4 + 4 + 8 + 1 + 1 + 4 + 24 = 60

Step 3: Find the amount needed to reach the next multiple of 10

The next multiple of ten after 60 is 60. The difference is the calculated check digit.

60 - 60 = 0
This NPI is valid
The calculated check digit is 0, which matches the last digit of 1316744170.

Other Providers at the Same Location


The following 17 providers are registered at the same or a nearby location.

Pediatrics
25500 POINT LOOKOUT ROAD
LEONARDTOWN, MD 20650
Emergency Medicine
25500 POINT LOOKOUT ROAD
LEONARDTOWN, MD 20650
Emergency Medicine
25500 POINT LOOKOUT ROAD
LEONARDTOWN, MD 20650
Emergency Medicine
25500 POINT LOOKOUT ROAD
LEONARDTOWN, MD 20650
Emergency Medicine
25500 POINT LOOKOUT ROAD
LEONARDTOWN, MD 20650
Internal Medicine
25500 POINT LOOKOUT ROAD
LEONARDTOWN, MD 20650
Pharmacist
25500 POINT LOOKOUT ROAD
LEONARDTOWN, MD 20650
Specialist
25500 POINT LOOKOUT ROAD
LEONARDTOWN, MD 20650
Dietitian, Registered
25500 POINT LOOKOUT ROAD
LEONARDTOWN, MD 20650
Psychiatry & Neurology (Psychiatry)
25500 POINT LOOKOUT ROAD
LEONARDTOWN, MD 20650
Advanced Practice Midwife
25500 POINT LOOKOUT ROAD
LEONARDTOWN, MD 20650
Clinical Medical Laboratory
25500 POINT LOOKOUT ROAD
LEONARDTOWN, MD 20650
Emergency Medicine
25500 POINT LOOKOUT ROAD
LEONARDTOWN, MD 20650
Hospitalist
25500 POINT LOOKOUT ROAD
LEONARDTOWN, MD 20650
Surgery (Vascular Surgery)
25500 POINT LOOKOUT ROAD
LEONARDTOWN, MD 20650
Emergency Medicine
25500 POINT LOOKOUT ROAD
LEONARDTOWN, MD 20650
Emergency Medicine
25500 POINT LOOKOUT ROAD, ST MARY'S HOSPITAL EMERGENCY DEPARTMENT
LEONARDTOWN, MD 20650

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1316744170, enumerated as an "organization" on February 28, 2025.

The provider is located at 25500 POINT LOOKOUT ROAD LEONARDTOWN, MD 20650 and the phone number is (301) 475-8981.

Internal Medicine with taxonomy code 207RH0003X and a focus in Hematology & Oncology.