DR. MARK SAMUEL EPSTEIN PHARMD
NPI 1245561703
Pharmacist - Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist in Washington, DC

NPI Status: Active since January 22, 2010

Contact Information

2301 M ST NW
WASHINGTON, DC
ZIP 20037
Phone: (202) 419-6367

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  • Individual
  • Male
  • Pharmacist
  • Pharmacist Clinician (PhC)/ Clinical Pha...

About MARK EPSTEIN

This page provides the complete NPI Profile along with additional information for Mark Epstein, a provider established in Washington, District Of Columbia with a medical specialization in Pharmacist, focusing in pharmacist clinician (phc)/ clinical pharmacy specialist . The healthcare provider is registered in the NPI registry with number 1245561703 assigned on January 2010. The practitioner's primary taxonomy code is 1835P0018X with license number 62919 (CA). The provider is registered as an individual and his NPI record was last updated 10 years ago.

NPI
1245561703
Provider Name
DR. MARK SAMUEL EPSTEIN PHARMD
Gender
Male
Entity Type
Individual
Location Address
2301 M ST NW WASHINGTON, DC 20037
Location Phone
(202) 419-6367
Mailing Address
2301 M ST NW WASHINGTON, DC 20037
Mailing Phone
(202) 419-6367
Is Sole Proprietor?
No
Enumeration Date
01-22-2010
Last Update Date
06-14-2016
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A pharmacist like Mark Epstein fills prescription medications, verifying instructions from physicians and offers expertise in the safe use of prescriptions. Pharmacists instruct patients on how to take a prescribed medicine and educate patients about potential side effects. Pharmacists might also conduct health and wellness screenings, provide immunizations, oversee the medications given to patients, and provide advice on healthy lifestyles.

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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

Pharmacist Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist

Taxonomy Code
1835P0018X
Type
Pharmacy Service Providers
License No.
62919
License State
CA
Taxonomy Description
Pharmacist Clinician/Clinical Pharmacy Specialist is a pharmacist with additional training and an expanded scope of practice that may include prescriptive authority, therapeutic management, and disease management.

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)
11835P0018XPharmacy Service Providers

Pharmacist
Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist

19222 (MD)
21835P0018XPharmacy Service Providers

Pharmacist
Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist

PH100001973 (DC)
31835P0018XPharmacy Service Providers

Pharmacist
Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist

0202214060 (VA)

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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 1245561703, we treat the final digit (3) 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 57. The final step is to find the difference between that total and the next multiple of ten (60 - 57 = 3).

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

Step 2: Add all digits plus the NPI constant

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

2 + 2 + 8 + 5 + 1 + 0 + 6 + 2 + 7 + 0 + 24 = 57

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

The next multiple of ten after 57 is 60. The difference is the calculated check digit.

60 - 57 = 3
This NPI is valid
The calculated check digit is 3, which matches the last digit of 1245561703.

Other Providers at the Same Location


The following 15 providers are registered at the same or a nearby location.

Pharmacist
2301 M ST NW, PHARMACY
WASHINGTON, DC 20037
Pharmacist
2301 M ST NW
WASHINGTON, DC 20037
Social Worker (Clinical)
2301 M ST NW, 3RD FLOOR
WASHINGTON, DC 20037
Family Medicine (Adult Medicine)
2301 M ST NW
WASHINGTON, DC 20037
Obstetrics & Gynecology
2301 M ST NW, DEPARTMENT OF OBSTETRICS AND GYNECOLO
WASHINGTON, DC 20037
Internal Medicine
2301 M ST NW
WASHINGTON, DC 20037
Psychologist
2301 M ST NW
WASHINGTON, DC 20037
Clinic/Center (Primary Care)
2301 M ST NW
WASHINGTON, DC 20037
Psychiatry & Neurology (Child & Adolescent Psychiatry)
2301 M ST NW, KAISER PERMANENTE NORTHWEST DC MEDICAL CENTER
WASHINGTON, DC 20037
Obstetrics & Gynecology
2301 M ST NW
WASHINGTON, DC 20037
Pediatrics
2301 M ST NW
WASHINGTON, DC 20037
Obstetrics & Gynecology
2301 M ST NW, KAISER PERMANENTE MARLOW HEIGHTS MEDICAL CENTER
WASHINGTON, DC 20037
Health Maintenance Organization
2301 M ST NW
WASHINGTON, DC 20037
Clinical Medical Laboratory
2301 M ST NW
WASHINGTON, DC 20037
Pharmacy (Managed Care Organization Pharmacy)
2301 M ST NW, SUITE # 200
WASHINGTON, DC 20037

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1245561703, enumerated as an "individual" on January 22, 2010.

The provider is located at 2301 M ST NW WASHINGTON, DC 20037 and the phone number is (202) 419-6367.

Pharmacist with taxonomy code 1835P0018X and a focus in Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist.