GREENWAY ENDOCRINOLOGY, PA
NPI 1942456447
Internal Medicine - Endocrinology, Diabetes & Metabolism in Greenbelt, MD

NPI Status: Active since August 15, 2008

Contact Information

7501 GREENWAY CENTER DR
SUITE 730
GREENBELT, MD
ZIP 20770
Phone: (301) 474-0400
Fax: (301) 474-2686

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  • Organization
  • Internal Medicine
  • Endocrinology, Diabetes & Metabolism
  • CLIA Number: 21D1063537
  • CLIA Cert. Type: Physician Office
  • CLIA Exp. Date: 01-16-2027

About GREENWAY ENDOCRINOLOGY, PA

This page provides the complete NPI Profile along with additional information for Greenway Endocrinology, Pa, an internist established in Greenbelt, Maryland operating as a Internal Medicine, focusing in endocrinology, diabetes & metabolism . The healthcare provider is registered in the NPI registry with number 1942456447 assigned on August 2008. The practitioner's primary taxonomy code is 207RE0101X. The provider is registered as an organization and their NPI record was last updated 10 years ago. The organization operates as a Single Specialty Group with one or more individual practitioners, all of who practice with the same area of specialization. The authorized official of this NPI record is Dr. Irfan Khan M.d. (Owner)

NPI
1942456447
Provider Name
GREENWAY ENDOCRINOLOGY, PA
Entity Type
Organization
Location Address
7501 GREENWAY CENTER DR SUITE 730 GREENBELT, MD 20770
Location Phone
(301) 474-0400
Location Fax
(301) 474-2686
Mailing Address
7501 GREENWAY CENTER DR SUITE 730 GREENBELT, MD 20770
Mailing Phone
(301) 474-0400
Mailing Fax
(301) 474-2686
Is Sole Proprietor?
No
Is Organization Subpart?
No
Enumeration Date
08-15-2008
Last Update Date
10-03-2016
Code Navigator

An internist like Greenway Endocrinology, 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.

Group Taxonomy 193400000X SINGLE SPECIALTY GROUP

This provdier is a business group of one or more individual practitioners, all of who practice with the same area 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

DR. IRFAN KHAN M.D.

Authorized Official Title
OWNER
Authorized Official Phone
(301) 474-0400

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
21D1063537
Facility Type
Physician Office
Certificate Effective Date
January 17, 2025
Certificate Expiration Date
January 16, 2027
Laboratory Director
IRFAN A. KHAN
Certificate Type
Certificate of Waiver
Certificate Type Description
This CLIA certificate is issued to Greenway Endocrinology, Pa to perform only waived tests. CLIA defines waived tests as simple tests with a low risk for an incorrect result. Waived tests include certain tests listed in CLIA regulations, tests cleared by the FDA for home use and tests approved by the FDA for waived status and that meet CLIA waiver criteria.

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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 1942456447, we treat the final digit (7) 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 73. The final step is to find the difference between that total and the next multiple of ten (80 - 73 = 7).

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

Step 2: Add all digits plus the NPI constant

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

2 + 9 + 8 + 2 + 8 + 5 + 1 + 2 + 4 + 8 + 24 = 73

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

The next multiple of ten after 73 is 80. The difference is the calculated check digit.

80 - 73 = 7
This NPI is valid
The calculated check digit is 7, which matches the last digit of 1942456447.

Other Providers at the Same Location


The following 20 providers are registered at the same or a nearby location.

Physical Therapist
7501 GREENWAY CENTER DR, STE 800
GREENBELT, MD 20770
Physical Therapist
7501 GREENWAY CENTER DR, SUITE 800
GREENBELT, MD 20770
Speech-Language Pathologist
7501 GREENWAY CENTER DR, SUITE #800
GREENBELT, MD 20770
Radiology (Diagnostic Radiology)
7501 GREENWAY CENTER DR, SUITE 200
GREENBELT, MD 20770
Family Medicine
7501 GREENWAY CENTER DR, SUITE 600
GREENBELT, MD 20770
Counselor
7501 GREENWAY CENTER DR, BUILDING 3, SUITE 600
GREENBELT, MD 20770
Physical Therapist
7501 GREENWAY CENTER DR, SUITE 800
GREENBELT, MD 20770
Dentist
7501 GREENWAY CENTER DR, SUITE 260
GREENBELT, MD 20770
Physician Assistant
7501 GREENWAY CENTER DR, SUITE 660
GREENBELT, MD 20770
Anesthesiology (Pain Medicine)
7501 GREENWAY CENTER DR, SUITE 660
GREENBELT, MD 20770
Nurse Practitioner (Family)
7501 GREENWAY CENTER DR
GREENBELT, MD 20770
Clinical Medical Laboratory
7501 GREENWAY CENTER DR, SUITE 690
GREENBELT, MD 20770
Physical Therapist
7501 GREENWAY CENTER DR, SUITE 680
GREENBELT, MD 20770
Internal Medicine (Endocrinology, Diabetes & Metabolism)
7501 GREENWAY CENTER DR, SUITE 730
GREENBELT, MD 20770
Internal Medicine (Endocrinology, Diabetes & Metabolism)
7501 GREENWAY CENTER DR, SUITE 730
GREENBELT, MD 20770
Physician Assistant
7501 GREENWAY CENTER DR, SUITE 730
GREENBELT, MD 20770
Ophthalmology (Retina Specialist)
7501 GREENWAY CENTER DR, SUITE # 300
GREENBELT, MD 20770
Ophthalmology (Retina Specialist)
7501 GREENWAY CENTER DR, SUITE 300
GREENBELT, MD 20770
Internal Medicine (Gastroenterology)
7501 GREENWAY CENTER DR, STE 620
GREENBELT, MD 20770
Podiatrist
7501 GREENWAY CENTER DR, MARYLAND TRADE CENTER LLL, SUITE 810
GREENBELT, MD 20770

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1942456447, enumerated as an "organization" on August 15, 2008.

The provider is located at 7501 GREENWAY CENTER DR SUITE 730 GREENBELT, MD 20770 and the phone number is (301) 474-0400.

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