DR. DAVID A CROSBY MB BCH BAO MD
NPI 1225621634
Obstetrics & Gynecology in New York, NY

NPI Status: Active since February 17, 2021

Contact Information

630 W 168TH ST
NEW YORK, NY
ZIP 10032
Phone: (646) 520-9917

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  • Individual
  • Male
  • Obstetrics & Gynecology

About DAVID CROSBY

This page provides the complete NPI Profile along with additional information for David Crosby, a women's health care provider established in New York, New York with a medical specialization in Obstetrics & Gynecology. The healthcare provider is registered in the NPI registry with number 1225621634 assigned on February 2021. The practitioner's primary taxonomy code is 207V00000X with license number 308523 (NY). The provider is registered as an individual and his NPI record was last updated 5 years ago.

NPI
1225621634
Provider Name
DR. DAVID A CROSBY MB BCH BAO MD
Gender
Male
Entity Type
Individual
Location Address
630 W 168TH ST NEW YORK, NY 10032
Location Phone
(646) 520-9917
Mailing Address
808 COLUMBUS AVE APT 6L NEW YORK, NY 10025
Mailing Phone
(646) 520-9917
Is Sole Proprietor?
No
Enumeration Date
02-17-2021
Last Update Date
02-17-2021
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Women's health care providers like David Crosby treat and diagnose diseases and conditions that affect a woman's physical and emotional health. Women's health professionals come from a variety of different specialties, including obstetrician/gynecologists, general surgeons, perinatologists, physician assistants, nurse practitioners or nurse midwives. A women's health provider might help you with family planning, breast care, pregnancy and child birth, osteoporosis, menopause, heart disease, etc.

Location Map

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

Obstetrics & Gynecology

Taxonomy Code
207V00000X
Type
Allopathic & Osteopathic Physicians
License No.
308523
License State
NY
Taxonomy Description
An obstetrician/gynecologist possesses special knowledge, skills and professional capability in the medical and surgical care of the female reproductive system and associated disorders. This physician serves as a consultant to other physicians and as a primary physician for women.

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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 1225621634, 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
2
Unchanged
Pos 3
2
Doubled → 4
Pos 4
5
Unchanged
Pos 5
6
Doubled → 12 → 1 + 2
Pos 6
2
Unchanged
Pos 7
1
Doubled → 2
Pos 8
6
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 2 → 4 6 → 12 → 3 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 + 2 + 4 + 5 + 1 + 2 + 2 + 2 + 6 + 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 1225621634.

Other Providers at the Same Location


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

Pharmacist (Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist)
630 W 168TH ST
NEW YORK, NY 10032
Internal Medicine (Rheumatology)
630 W 168TH ST, 10-445
NEW YORK, NY 10032
Internal Medicine (Infectious Disease)
630 W 168TH ST, BOX 82
NEW YORK, NY 10032
Pediatrics (Pediatric Endocrinology)
630 W 168TH ST, PH5E, ROOM 522
NEW YORK, NY 10032
Radiology (Diagnostic Radiology)
630 W 168TH ST, MC28
NEW YORK, NY 10032
Radiology (Diagnostic Radiology)
630 W 168TH ST, MC28
NEW YORK, NY 10032
Radiology (Diagnostic Radiology)
630 W 168TH ST, MC28
NEW YORK, NY 10032
Internal Medicine (Pulmonary Disease)
630 W 168TH ST, VC 5
NEW YORK, NY 10032
Pathology (Anatomic Pathology & Clinical Pathology)
630 W 168TH ST
NEW YORK, NY 10032
Pediatrics
630 W 168TH ST
NEW YORK, NY 10032
Dentist (Oral and Maxillofacial Surgery)
630 W 168TH ST, SUITE VC7-226
NEW YORK, NY 10032
Dentist (Pediatric Dentistry)
630 W 168TH ST, SUITE VC7-226
NEW YORK, NY 10032
Dentist (General Practice)
630 W 168TH ST, P&S BOX 20
NEW YORK, NY 10032
Internal Medicine (Pulmonary Disease)
630 W 168TH ST
NEW YORK, NY 10032
Physician Assistant
630 W 168TH ST
NEW YORK, NY 10032
Family Medicine
630 W 168TH ST
NEW YORK, NY 10032
Dentist (Endodontics)
630 W 168TH ST
NEW YORK, NY 10032
Dentist (General Practice)
630 W 168TH ST, COLUMBIA UNIVERSITY COLLEGE OF DENTAL M
NEW YORK, NY 10032
Dentist
630 W 168TH ST, PH 7 STEM
NEW YORK, NY 10032
Internal Medicine
630 W 168TH ST, PH 8 EAST, ROOM 105
NEW YORK, NY 10032

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1225621634, enumerated as an "individual" on February 17, 2021.

The provider is located at 630 W 168TH ST NEW YORK, NY 10032 and the phone number is (646) 520-9917.

Obstetrics & Gynecology with taxonomy code 207V00000X.