DOCTORS MEDICAL OFFICE PLLC
NPI 1164848818
Clinic/Center - Primary Care in Merrick, NY

NPI Status: Active since March 05, 2014

Contact Information

1825 MERRICK RD
MERRICK, NY
ZIP 11566
Phone: (516) 867-5132
Fax: (516) 867-5519

Get Directions Write a Review

  • Organization
  • Clinic/Center
  • Primary Care
  • CLIA Number: 33D0869006
  • CLIA Cert. Type: Physician Office
  • CLIA Exp. Date: 01-19-2027

About DOCTORS MEDICAL OFFICE PLLC

This page provides the complete NPI Profile along with additional information for Doctors Medical Office Pllc, a primary care provider established in Merrick, New York operating as a Clinic/center, focusing in primary care . The healthcare provider is registered in the NPI registry with number 1164848818 assigned on March 2014. The practitioner's primary taxonomy code is 261QP2300X. The provider is registered as an organization and their NPI record was last updated January 2026. Doctors Medical Office Pllc 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 Dr. Mark Haltrecht Do (Manager/member)

NPI
1164848818
Provider Legal Name
DOCTORS MEDICAL OFFICE PLLC
Other Organization Name
Other Name Type
(6)
Entity Type
Organization
Location Address
1825 MERRICK RD MERRICK, NY 11566
Location Phone
(516) 867-5132
Location Fax
(516) 867-5519
Mailing Address
1825 MERRICK RD MERRICK, NY 11566
Mailing Phone
(516) 867-5132
Mailing Fax
(516) 867-5519
Is Sole Proprietor?
No
Is Organization Subpart?
No
Enumeration Date
03-05-2014
Last Update Date
01-07-2026
Code Navigator

A primary care provider (PCP) like Doctors Medical Office Pllc 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 .

Location Map

Secondary Locations

  • 389 Merrick Ave
    Merrick, NY 11566
    (516) 867-5132

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

Clinic/Center Primary Care

Taxonomy Code
261QP2300X
Type
Ambulatory Health Care Facilities

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)
1207Q00000XAllopathic & Osteopathic Physicians

Family Medicine

 
2261QR0200XAmbulatory Health Care Facilities

Clinic/Center
Radiology

 

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

DR. MARK HALTRECHT DO

Authorized Official Title
MANAGER/MEMBER
Authorized Official Phone
(516) 867-5132

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
33D0869006
Facility Type
Physician Office
Certificate Effective Date
January 20, 2025
Certificate Expiration Date
January 19, 2027
Laboratory Director
DR. MARK H. HALTRECHT
Certificate Type
Certificate of Waiver
Certificate Type Description
This CLIA certificate is issued to Doctors Medical Office Pllc 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.

Reviews for DOCTORS MEDICAL OFFICE PLLC

There are currently no reviews for this provider. Be the first person to share your experience with this provider by filling out our review form. Your insights are appreciated and will help others make informed decisions.

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 1164848818, we treat the final digit (8) 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 62. The final step is to find the difference between that total and the next multiple of ten (70 - 62 = 8).

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
1
Unchanged
Pos 3
6
Doubled → 12 → 1 + 2
Pos 4
4
Unchanged
Pos 5
8
Doubled → 16 → 1 + 6
Pos 6
4
Unchanged
Pos 7
8
Doubled → 16 → 1 + 6
Pos 8
8
Unchanged
Pos 9
1
Doubled → 2
Check
8
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 8 → 16 → 7 8 → 16 → 7 1 → 2

Step 2: Add all digits plus the NPI constant

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

2 + 1 + 1 + 2 + 4 + 1 + 6 + 4 + 1 + 6 + 8 + 2 + 24 = 62

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

The next multiple of ten after 62 is 70. The difference is the calculated check digit.

70 - 62 = 8
This NPI is valid
The calculated check digit is 8, which matches the last digit of 1164848818.

Other Providers at the Same Location


The following 4 providers are registered at the same or a nearby location.

Plastic Surgery
1825 MERRICK RD
MERRICK, NY 11566
Dentist (Pediatric Dentistry)
1825 MERRICK RD
MERRICK, NY 11566
Dentist (Pediatric Dentistry)
1825 MERRICK RD
MERRICK, NY 11566
Family Medicine
1825 MERRICK RD
MERRICK, NY 11566

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1164848818, enumerated as an "organization" on March 05, 2014.

The provider is located at 1825 MERRICK RD MERRICK, NY 11566 and the phone number is (516) 867-5132.

Clinic/Center with taxonomy code 261QP2300X and a focus in Primary Care.