MEDSTAR MEDICAL GROUP - SOUTHERN MARYLAND LLC
NPI 1629875661
Internal Medicine in Waldorf, MD

NPI Status: Active since February 27, 2025

Contact Information

10 ST. PATRICK'S DRIVE
WALDORF, MD
ZIP 20603
Phone: (301) 705-7870
Fax: (240) 448-2930

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  • Organization
  • Internal Medicine

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 Waldorf, Maryland operating as a Internal Medicine. The healthcare provider is registered in the NPI registry with number 1629875661 assigned on February 2025. The practitioner's primary taxonomy code is 207R00000X. 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
1629875661
Provider Legal Name
MEDSTAR MEDICAL GROUP - SOUTHERN MARYLAND LLC
Other Organization Name
Other Name Type
(6)
Entity Type
Organization
Location Address
10 ST. PATRICK'S DRIVE WALDORF, MD 20603
Location Phone
(301) 705-7870
Location Fax
(240) 448-2930
Mailing Address
24035 THREE NOTCH RD HOLLYWOOD, MD 20636
Mailing Phone
(301) 373-7900
Mailing Fax
(240) 448-2930
Is Sole Proprietor?
No
Is Organization Subpart?
No
Enumeration Date
02-27-2025
Last Update Date
08-14-2025
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

Taxonomy Code
207R00000X
Type
Allopathic & Osteopathic Physicians
Taxonomy Description
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.

Secondary Taxonomies

The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.

No. Taxonomy Code Type Classification /
Specialization
License No. (State)
1207Q00000XAllopathic & Osteopathic Physicians

Family Medicine

 
2207RC0000XAllopathic & Osteopathic Physicians

Internal Medicine
Cardiovascular Disease

 
3207RE0101XAllopathic & Osteopathic Physicians

Internal Medicine
Endocrinology, Diabetes & Metabolism

 
4207RG0100XAllopathic & Osteopathic Physicians

Internal Medicine
Gastroenterology

 
5207RH0003XAllopathic & Osteopathic Physicians

Internal Medicine
Hematology & Oncology

 
6207RI0200XAllopathic & Osteopathic Physicians

Internal Medicine
Infectious Disease

 
7207RN0300XAllopathic & Osteopathic Physicians

Internal Medicine
Nephrology

 
8207RP1001XAllopathic & Osteopathic Physicians

Internal Medicine
Pulmonary Disease

 
9207RR0500XAllopathic & Osteopathic Physicians

Internal Medicine
Rheumatology

 
10207RS0012XAllopathic & Osteopathic Physicians

Internal Medicine
Sleep Medicine

 
11207U00000XAllopathic & Osteopathic Physicians

Nuclear Medicine

 
12208000000XAllopathic & Osteopathic Physicians

Pediatrics

 
132081P2900XAllopathic & Osteopathic Physicians

Physical Medicine & Rehabilitation
Pain Medicine

 
142084N0400XAllopathic & Osteopathic Physicians

Psychiatry & Neurology
Neurology

 

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 1629875661, we treat the final digit (1) 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 69. The final step is to find the difference between that total and the next multiple of ten (70 - 69 = 1).

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
6
Unchanged
Pos 3
2
Doubled → 4
Pos 4
9
Unchanged
Pos 5
8
Doubled → 16 → 1 + 6
Pos 6
7
Unchanged
Pos 7
5
Doubled → 10 → 1 + 0
Pos 8
6
Unchanged
Pos 9
6
Doubled → 12 → 1 + 2
Check
1
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 2 → 4 8 → 16 → 7 5 → 10 → 1 6 → 12 → 3

Step 2: Add all digits plus the NPI constant

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

2 + 6 + 4 + 9 + 1 + 6 + 7 + 1 + 0 + 6 + 1 + 2 + 24 = 69

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

The next multiple of ten after 69 is 70. The difference is the calculated check digit.

70 - 69 = 1
This NPI is valid
The calculated check digit is 1, which matches the last digit of 1629875661.

Other Providers at the Same Location


The following 1 provider is registered at the same or a nearby location.

Clinic/Center (Ambulatory Surgical)
10 ST. PATRICK'S DRIVE
WALDORF, MD 20603

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1629875661, enumerated as an "organization" on February 27, 2025.

The provider is located at 10 ST. PATRICK'S DRIVE WALDORF, MD 20603 and the phone number is (301) 705-7870.

Internal Medicine with taxonomy code 207R00000X.