FREDERICK INTERNAL MEDICINE AND ENDOCRINOLOGY SERVICES, PA
NPI 1760590111
Internal Medicine - Endocrinology, Diabetes & Metabolism in Frederick, MD

NPI Status: Active since August 27, 2006

Contact Information

65 THOMAS JOHNSON DR STE C
FREDERICK, MD
ZIP 21702
Phone: (301) 663-3836
Fax: (301) 663-0122

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  • Organization
  • Internal Medicine
  • Endocrinology, Diabetes & Metabolism
  • CLIA Number: 21D0220587
  • CLIA Cert. Type: Physician Office
  • CLIA Exp. Date: 03-13-2027

About FREDERICK INTERNAL MEDICINE AND ENDOCRINOLOGY SERVICES, PA

This page provides the complete NPI Profile along with additional information for Frederick Internal Medicine And Endocrinology Services, Pa, an internist established in Frederick, Maryland operating as a Internal Medicine, focusing in endocrinology, diabetes & metabolism . The healthcare provider is registered in the NPI registry with number 1760590111 assigned on August 2006. The practitioner's primary taxonomy code is 207RE0101X. The provider is registered as an organization and their NPI record was last updated one year ago. Frederick Internal Medicine And Endocrinology Services, Pa 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 Andrew Oliver Donelson Md (Partner Physician)

NPI
1760590111
Provider Legal Name
FREDERICK INTERNAL MEDICINE AND ENDOCRINOLOGY SERVICES, PA
Other Organization Name
Other Name Type
(6)
Entity Type
Organization
Location Address
65 THOMAS JOHNSON DR STE C FREDERICK, MD 21702
Location Phone
(301) 663-3836
Location Fax
(301) 663-0122
Mailing Address
65 THOMAS JOHNSON DR STE C FREDERICK, MD 21702
Mailing Phone
(301) 663-3836
Mailing Fax
(301) 663-0122
Is Sole Proprietor?
No
Is Organization Subpart?
No
Enumeration Date
08-27-2006
Last Update Date
09-02-2025
Code Navigator

An internist like Frederick Internal Medicine And Endocrinology Services, Pa 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 Endocrinology, Diabetes & Metabolism

Taxonomy Code
207RE0101X
Type
Allopathic & Osteopathic Physicians
Taxonomy Description
An internist who concentrates on disorders of the internal (endocrine) glands such as the thyroid and adrenal glands. This specialist also deals with disorders such as diabetes, metabolic and nutritional disorders, obesity, pituitary diseases and menstrual and sexual problems.

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)
1207R00000XAllopathic & Osteopathic Physicians

Internal Medicine

 

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

ANDREW OLIVER DONELSON MD

Authorized Official Title
PARTNER PHYSICIAN
Authorized Official Phone
(301) 663-3836

CLIA Information

The Clinical Laboratory Improvement Amendments (CLIA) of 1988 applies to facilities or sites that test human specimens for health assessment or to diagnose, prevent, or treat disease. The CLIA Program sets standards for clinical laboratory testing and issues certificates. The NPI / CLIA crosswalk information for this NPI number is:

CLIA Number
21D0220587
Facility Type
Physician Office
Certificate Effective Date
March 14, 2025
Certificate Expiration Date
March 13, 2027
Laboratory Director
HEMEN SHAH
Certificate Type
Certificate of Compliance
Certificate Type Description
This CLIA certificate is issued to Frederick Internal Medicine And Endocrinology Services, Pa after an inspection that finds the laboratory to be in compliance with all applicable CLIA requirements. This type of certificate is issued to laboratories that perform nonwaived (moderate and/or high complexity) testing.

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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 1760590111, 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 49. The final step is to find the difference between that total and the next multiple of ten (50 - 49 = 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
7
Unchanged
Pos 3
6
Doubled → 12 → 1 + 2
Pos 4
0
Unchanged
Pos 5
5
Doubled → 10 → 1 + 0
Pos 6
9
Unchanged
Pos 7
0
Doubled → 0
Pos 8
1
Unchanged
Pos 9
1
Doubled → 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 6 → 12 → 3 5 → 10 → 1 0 → 0 1 → 2

Step 2: Add all digits plus the NPI constant

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

2 + 7 + 1 + 2 + 0 + 1 + 0 + 9 + 0 + 1 + 2 + 24 = 49

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

The next multiple of ten after 49 is 50. The difference is the calculated check digit.

50 - 49 = 1
This NPI is valid
The calculated check digit is 1, which matches the last digit of 1760590111.

Other Providers at the Same Location


The following 2 providers are registered at the same or a nearby location.

Physician Assistant
65 THOMAS JOHNSON DR STE C
FREDERICK, MD 21702
Nurse Practitioner (Family)
65 THOMAS JOHNSON DR STE C
FREDERICK, MD 21702

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1760590111, enumerated as an "organization" on August 27, 2006.

The provider is located at 65 THOMAS JOHNSON DR STE C FREDERICK, MD 21702 and the phone number is (301) 663-3836.

Internal Medicine with taxonomy code 207RE0101X and a focus in Endocrinology, Diabetes & Metabolism.