MARK H GREGORY MD PC
NPI 1033588256
Internal Medicine in Saint Louis, MO

NPI Status: Active since September 17, 2015

Contact Information

555 N NEW BALLAS RD
SUITE 101
SAINT LOUIS, MO
ZIP 63141
Phone: (314) 872-8470
Fax: (314) 872-8471

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  • Organization
  • Internal Medicine

About MARK H GREGORY MD PC

This page provides the complete NPI Profile along with additional information for Mark H Gregory Md Pc, an internist established in Saint Louis, Missouri operating as a Internal Medicine. The healthcare provider is registered in the NPI registry with number 1033588256 assigned on September 2015. The practitioner's primary taxonomy code is 207R00000X with license number 100578 (MO). The provider is registered as an organization and their NPI record was last updated 11 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 Mark Gregory Md (Owner)

NPI
1033588256
Provider Name
MARK H GREGORY MD PC
Entity Type
Organization
Location Address
555 N NEW BALLAS RD SUITE 101 SAINT LOUIS, MO 63141
Location Phone
(314) 872-8470
Location Fax
(314) 872-8471
Mailing Address
PO BOX 445 SULLIVAN, MO 63080
Mailing Phone
(573) 468-6501
Mailing Fax
(314) 872-8471
Is Sole Proprietor?
No
Is Organization Subpart?
No
Enumeration Date
09-17-2015
Last Update Date
09-17-2015
Code Navigator

An internist like Mark H Gregory Md Pc 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.

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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
License No.
100578
License State
MO
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.

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

MARK GREGORY MD

Authorized Official Title
OWNER
Authorized Official Phone
(314) 872-8470

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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 1033588256, we treat the final digit (6) 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 54. The final step is to find the difference between that total and the next multiple of ten (60 - 54 = 6).

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

Step 2: Add all digits plus the NPI constant

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

2 + 0 + 6 + 3 + 1 + 0 + 8 + 1 + 6 + 2 + 1 + 0 + 24 = 54

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

The next multiple of ten after 54 is 60. The difference is the calculated check digit.

60 - 54 = 6
This NPI is valid
The calculated check digit is 6, which matches the last digit of 1033588256.

Other Providers at the Same Location


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

Internal Medicine
555 N NEW BALLAS RD, SUITE 110
SAINT LOUIS, MO 63141
Physical Therapist
555 N NEW BALLAS RD, SUITE 120
SAINT LOUIS, MO 63141
Physical Therapist (Orthopedic)
555 N NEW BALLAS RD, SUITE 225
SAINT LOUIS, MO 63141
Physical Therapist
555 N NEW BALLAS RD, SUITE 120
SAINT LOUIS, MO 63141
Physical Therapist
555 N NEW BALLAS RD, SUITE 120
SAINT LOUIS, MO 63141
Physical Therapist
555 N NEW BALLAS RD, SUITE 120
SAINT LOUIS, MO 63141
Physical Therapist
555 N NEW BALLAS RD, SUITE 120
SAINT LOUIS, MO 63141
Internal Medicine
555 N NEW BALLAS RD, SUITE 110
SAINT LOUIS, MO 63141
Physical Therapist
555 N NEW BALLAS RD, SUITE 120
SAINT LOUIS, MO 63141
Physical Therapist
555 N NEW BALLAS RD, SUITE 225
SAINT LOUIS, MO 63141
Nurse Practitioner (Women's Health)
555 N NEW BALLAS RD, SUITE 240
CREVE COEUR, MO 63141
Dermatology
555 N NEW BALLAS RD, SUITE 260
SAINT LOUIS, MO 63141
Dentist
555 N NEW BALLAS RD, SUITE 355
SAINT LOUIS, MO 63141
Physical Therapist
555 N NEW BALLAS RD, SUITE 120
SAINT LOUIS, MO 63141
Physical Therapist
555 N NEW BALLAS RD, SUITE 120
SAINT LOUIS, MO 63141
Physical Therapist
555 N NEW BALLAS RD, SUITE 120
SAINT LOUIS, MO 63141
Physical Therapist
555 N NEW BALLAS RD, SUITE 120
SAINT LOUIS, MO 63141
Physical Therapist
555 N NEW BALLAS RD, SUITE 120
SAINT LOUIS, MO 63141
Anesthesiology (Pain Medicine)
555 N NEW BALLAS RD, STE. 165
SAINT LOUIS, MO 63141
Physical Therapist
555 N NEW BALLAS RD
SAINT LOUIS, MO 63141

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1033588256, enumerated as an "organization" on September 17, 2015.

The provider is located at 555 N NEW BALLAS RD SUITE 101 SAINT LOUIS, MO 63141 and the phone number is (314) 872-8470.

Internal Medicine with taxonomy code 207R00000X.