DR. MARK LEE FARBMAN OD
NPI 1952401234
Optometrist in Frederick, MD

NPI Status: Active since September 25, 2006

Contact Information

1560 OPOSSUMTOWN PIKE
FREDERICK, MD
ZIP 21702
Phone: (301) 662-8866
Fax: (301) 293-6133

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  • Individual
  • Male
  • Optometrist

About MARK FARBMAN

This page provides the complete NPI Profile along with additional information for Mark Farbman, a provider established in Frederick, Maryland with a medical specialization in Optometrist. The healthcare provider is registered in the NPI registry with number 1952401234 assigned on September 2006. The practitioner's primary taxonomy code is 152W00000X with license number TA646 (MD). The provider is registered as an individual and his NPI record was last updated 19 years ago.

NPI
1952401234
Provider Name
DR. MARK LEE FARBMAN OD
Gender
Male
Entity Type
Individual
Location Address
1560 OPOSSUMTOWN PIKE FREDERICK, MD 21702
Location Phone
(301) 662-8866
Location Fax
(301) 293-6133
Mailing Address
265 W 5TH ST FREDERICK, MD 21701
Mailing Phone
(301) 668-7993
Mailing Fax
(301) 293-6133
Is Sole Proprietor?
No
Enumeration Date
09-25-2006
Last Update Date
07-19-2007
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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

Optometrist

Taxonomy Code
152W00000X
Type
Eye and Vision Services Providers
License No.
TA646
License State
MD
Taxonomy Description
Doctors of optometry (ODs) are the primary health care professionals for the eye. Optometrists examine, diagnose, treat, and manage diseases, injuries, and disorders of the visual system, the eye, and associated structures as well as identify related systemic conditions affecting the eye. An optometrist has completed pre-professional undergraduate education in a college or university and four years of professional education at a college of optometry, leading to the doctor of optometry (O.D.) degree. Some optometrists complete an optional residency in a specific area of practice. Optometrists are eye health care professionals state-licensed to diagnose and treat diseases and disorders of the eye and visual system.

Insurance Plans Accepted

According to publicly available information the provider might be accepting the following health plans from these health insurance companies:

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

*Please verify directly with this provider to make sure your insurance plan is currently accepted.

Additional Identifiers

The NPI Enumerator encourages providers to submit additional identifiers with their NPI application although the submission of this information is optional. The additional identifier(s) section includes other numbers or codes currently or formerly used as an identifier for the provider by other public healthcare entities. The identifiers may include UPIN, NSC, OSCAR, DEA, Medicaid State or PIN identification numbers.

Identifier Type / Code Identifier State Identifier Issuer
34510OTHER (01)ALLIANCE
34510OTHER (01)OPTIMUM CHOICE
484151OTHER (01)AETNA-HMO
60645801OTHER (01)CAREFIRST BCBS
620427OTHER (01)HEALTHLINK/NCPPO
60645801OTHER (01)BLUE CROSS BLUE SHIELD
T59936MEDICARE UPIN (02)MD 
0001OTHER (01)BCBS FEP
34510OTHER (01)ONENET
4290491OTHER (01)AETNA
34510OTHER (01)MDIPA
620427OTHER (01)UNICARE
602EMEDICARE PIN (08)MD 
34510OTHER (01)MAMSI/UNITED HEALTHCARE

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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 1952401234, we treat the final digit (4) 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 56. The final step is to find the difference between that total and the next multiple of ten (60 - 56 = 4).

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

Step 2: Add all digits plus the NPI constant

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

2 + 9 + 1 + 0 + 2 + 8 + 0 + 2 + 2 + 6 + 24 = 56

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

The next multiple of ten after 56 is 60. The difference is the calculated check digit.

60 - 56 = 4
This NPI is valid
The calculated check digit is 4, which matches the last digit of 1952401234.

Other Providers at the Same Location


The following 6 providers are registered at the same or a nearby location.

Advanced Practice Midwife
1560 OPOSSUMTOWN PIKE, STE 18
FREDERICK, MD 21702
Specialist
1560 OPOSSUMTOWN PIKE, SUITE A26
FREDERICK, MD 21702
Acupuncturist
1560 OPOSSUMTOWN PIKE, SUITE 25
FREDERICK, MD 21702
Physical Therapist
1560 OPOSSUMTOWN PIKE, SUITE 25
FREDERICK, MD 21702
Acupuncturist
1560 OPOSSUMTOWN PIKE, SUITE 25
FREDERICK, MD 21702
Clinic/Center (Magnetic Resonance Imaging (MRI))
1560 OPOSSUMTOWN PIKE
FREDERICK, MD 21702

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1952401234, enumerated as an "individual" on September 25, 2006.

The provider is located at 1560 OPOSSUMTOWN PIKE FREDERICK, MD 21702 and the phone number is (301) 662-8866.

Optometrist with taxonomy code 152W00000X.

The provider might be accepting Accepts: Medicare, Medicaid, Aetna and Blue Cross Blue. Please consult your insurance carrier or call the provider to verify.