MR. MARK FAHIM M.D.
NPI 1912836446
Student in an Organized Health Care Education/Training Program in Buffalo, NY

NPI Status: Active since May 19, 2026

Contact Information

462 GRIDER STREET
BUFFALO, NY
ZIP 14215
Phone: (716) 898-3000

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  • Individual
  • Male
  • Student in an Organized Health Care Educ...

About MARK FAHIM

This page provides the complete NPI Profile along with additional information for Mark Fahim, a primary care provider established in Buffalo, New York with a medical specialization in Student In An Organized Health Care Education/training Program. The healthcare provider is registered in the NPI registry with number 1912836446 assigned on May 2026. The practitioner's primary taxonomy code is 390200000X. The provider is registered as an individual and his NPI record was last updated May 2026.

NPI
1912836446
Provider Name
MR. MARK FAHIM M.D.
Gender
Male
Entity Type
Individual
Location Address
462 GRIDER STREET BUFFALO, NY 14215
Location Phone
(716) 898-3000
Mailing Address
462 GRIDER STREET BUFFALO, NY 14215
Mailing Phone
(716) 898-3000
Is Sole Proprietor?
No
Enumeration Date
05-19-2026
Last Update Date
05-19-2026
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A primary care provider (PCP) like Mark Fahim sees people with common medical problems. The primary care provider might be a doctor, physician assistant, nurse practitioner or clinic that are usually involved in your long-term care. A PCP might provide preventive care, treat common medical conditions, identify urgent medical problems and refer you to specialists when necessary. Primary care is usually provided in an outpatient facility but if you are admitted to a hospital your PCP may assist in your care. The most common medical conditions seen by primary care providers are: hypertension, upper respiratory tract infections, depression or anxiety, back pain, arthritis, dermatitis, diabetes, urinary tract infections, 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

Student in an Organized Health Care Education/Training Program

Taxonomy Code
390200000X
Type
Student, Health Care
Taxonomy Description
An individual who is enrolled in an organized health care education/training program leading to a degree, certification, registration, and/or licensure to provide health care.

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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 1912836446, 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 64. The final step is to find the difference between that total and the next multiple of ten (70 - 64 = 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
9
Unchanged
Pos 3
1
Doubled → 2
Pos 4
2
Unchanged
Pos 5
8
Doubled → 16 → 1 + 6
Pos 6
3
Unchanged
Pos 7
6
Doubled → 12 → 1 + 2
Pos 8
4
Unchanged
Pos 9
4
Doubled → 8
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 1 → 2 8 → 16 → 7 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 + 2 + 2 + 1 + 6 + 3 + 1 + 2 + 4 + 8 + 24 = 64

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

The next multiple of ten after 64 is 70. The difference is the calculated check digit.

70 - 64 = 6
This NPI is valid
The calculated check digit is 6, which matches the last digit of 1912836446.

Other Providers at the Same Location


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

Nurse Practitioner (Critical Care Medicine)
462 GRIDER STREET, RM 741
BUFFALO, NY 14215
Urology
462 GRIDER STREET, SUITE 119
BUFFALO, NY 14215
Psychiatry & Neurology (Psychiatry)
462 GRIDER STREET
BUFFALO, NY 14215
Long Term Care Hospital
462 GRIDER STREET, DAVID K MILLER BUILDING
BUFFALO, NY 14215
Student in an Organized Health Care Education/Training Program
462 GRIDER STREET, UNIVERSITY AT BUFFALO IM RESIDENCY TRAINING PROGRAM
BUFFALO, NY 14215
Internal Medicine
462 GRIDER STREET, SUITE C-113
BUFFALO, NY 14215
Student in an Organized Health Care Education/Training Program
462 GRIDER STREET
BUFFALO, NY 14215
Orthopaedic Surgery
462 GRIDER STREET, UBMD ORTHOPAEDICS AND SPORTS MEDICINE
BUFFALO, NY 14215
Nurse Practitioner (Psychiatric/Mental Health)
462 GRIDER STREET, UNIVERSITY PSYCHIATRY PRACTICE, INC
BUFFALO, NY 14215
Student in an Organized Health Care Education/Training Program
462 GRIDER STREET
BUFFALO, NY 14215
Student in an Organized Health Care Education/Training Program
462 GRIDER STREET, ERIE COUNTY MEDICAL CENTRE, DAVID. K. MILLER BUILDING
BUFFALO, NY 14215
Psychiatry & Neurology (Neurology)
462 GRIDER STREET
BUFFALO, NY 14215
Student in an Organized Health Care Education/Training Program
462 GRIDER STREET
BUFFALO, NY 14215
Physical Therapy Assistant
462 GRIDER STREET
BUFFALO, NY 14215
Student in an Organized Health Care Education/Training Program
462 GRIDER STREET, ECMC
BUFFALO, NY 14215
Student in an Organized Health Care Education/Training Program
462 GRIDER STREET
BUFFALO, NY 14215
Physician Assistant (Medical)
462 GRIDER STREET
BUFFALO, NY 14215
Physician Assistant
462 GRIDER STREET
BUFFALO, NY 14215
Student in an Organized Health Care Education/Training Program
462 GRIDER STREET
BUFFALO, NY 14215
Student in an Organized Health Care Education/Training Program
462 GRIDER STREET, ERIE COUNTY MEDICAL CENTER - DK MILLER BLDG., 3RD FLOOR
BUFFALO, NY 14215

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1912836446, enumerated as an "individual" on May 19, 2026.

The provider is located at 462 GRIDER STREET BUFFALO, NY 14215 and the phone number is (716) 898-3000.

Student in an Organized Health Care Education/Training Program with taxonomy code 390200000X.