Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 30 days.

GEOFFREY WILLIAM CUNDIFF M.D.
NPI 1730124637
Obstetrics & Gynecology in Baltimore, MD

Active since June 17, 2006
601 N CAROLINE ST, BALTIMORE, MD 21287(410) 955-6700 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: July 19, 2026.

  • Individual
  • Male
  • Obstetrics & Gynecology

About GEOFFREY CUNDIFF

This page provides the complete NPI Profile along with additional information for Geoffrey Cundiff, a women's health care provider established in Baltimore, Maryland with a medical specialization in Obstetrics & Gynecology. The healthcare provider is registered in the NPI registry with number 1730124637 assigned on June 2006. The practitioner's primary taxonomy code is 207V00000X with license number D44357 (MD). The provider is registered as an individual and his NPI record was last updated July 2026.

NPI
1730124637
Provider Name
GEOFFREY WILLIAM CUNDIFF M.D.
Gender
Male
Entity Type
Individual
Location Address
601 N CAROLINE ST BALTIMORE, MD 21287
Location Phone
(410) 955-6700
Mailing Address
PO BOX 64313 BALTIMORE, MD 21264
Is Sole Proprietor?
No
Enumeration Date
06-17-2006
Last Update Date
07-13-2026
Code Navigator

Women's health care providers like Geoffrey Cundiff 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.
D44357
License State
MD
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.

Reviews for GEOFFREY WILLIAM CUNDIFF M.D.

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 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 1730124637, we treat the final digit (7) 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 63. The final step is to find the difference between that total and the next multiple of ten (70 - 63 = 7).

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

Step 2: Add all digits plus the NPI constant

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

2 + 7 + 6 + 0 + 2 + 2 + 8 + 6 + 6 + 24 = 63

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

The next multiple of ten after 63 is 70. The difference is the calculated check digit.

70 - 63 = 7
This NPI is valid
The calculated check digit is 7, which matches the last digit of 1730124637.

Other Providers at the Same Location


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

Audiologist
601 N CAROLINE ST
BALTIMORE, MD 21287
Pediatrics
601 N CAROLINE ST
BALTIMORE, MD 21287
Nurse Practitioner
601 N CAROLINE ST, # 7263
BALTIMORE, MD 21287
Dentist (Oral and Maxillofacial Surgery)
601 N CAROLINE ST
BALTIMORE, MD 21287
Obstetrics & Gynecology
601 N CAROLINE ST
BALTIMORE, MD 21287
Obstetrics & Gynecology
601 N CAROLINE ST
BALTIMORE, MD 21287
Psychologist (Clinical)
601 N CAROLINE ST
BALTIMORE, MD 21287
Pediatrics
601 N CAROLINE ST
BALTIMORE, MD 21287
Medical Genetics (Clinical Genetics (M.D.))
601 N CAROLINE ST
BALTIMORE, MD 21287
Dietitian, Registered
601 N CAROLINE ST
BALTIMORE, MD 21287
Nurse Practitioner
601 N CAROLINE ST
BALTIMORE, MD 21287
Pediatrics (Pediatric Cardiology)
601 N CAROLINE ST
BALTIMORE, MD 21287
Pediatrics (Pediatric Rheumatology)
601 N CAROLINE ST
BALTIMORE, MD 21287
Nurse Practitioner
601 N CAROLINE ST
BALTIMORE, MD 21287
Obstetrics & Gynecology
601 N CAROLINE ST
BALTIMORE, MD 21287
Radiology (Diagnostic Radiology)
601 N CAROLINE ST
BALTIMORE, MD 21287
Physician Assistant (Surgical)
601 N CAROLINE ST, #5263
BALTIMORE, MD 21287
Internal Medicine (Endocrinology, Diabetes & Metabolism)
601 N CAROLINE ST, 7TH FLOOR
BALTIMORE, MD 21287
Speech-Language Pathologist
601 N CAROLINE ST
BALTIMORE, MD 21287
Internal Medicine
601 N CAROLINE ST, STE 7143
BALTIMORE, MD 21287

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1730124637, enumerated as an "individual" on June 17, 2006.

The provider is located at 601 N CAROLINE ST BALTIMORE, MD 21287 and the phone number is (410) 955-6700.

Obstetrics & Gynecology with taxonomy code 207V00000X.