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DR. GREGORY W SIEWNY MD
NPI 1891791216
Obstetrics & Gynecology in Franklin, OH

Active since June 21, 2005
200 MEDICAL CENTER DR, SUITE 160, FRANKLIN, OH 45005(513) 424-1440(513) 424-1422 Get Directions Write a Review

NPPES record last updated: April 24, 2015. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Dr. Gregory W Siewny Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. GREGORY W SIEWNY MD (NPI 1891791216) is an individual obstetrics & gynecology provider in Franklin, Ohio, licensed in Ohio (35049923) and active in the NPI registry since June 2005.

NPPES Registry Identity

NPI1891791216
Entity TypeIndividualMale
Primary Taxonomy207V00000X
Provider Legal NameDR. GREGORY W SIEWNYCredential: MD
Location Address200 MEDICAL CENTER DR, SUITE 160Franklin, OH 45005-5200
Mailing Address200 Medical Center Dr, Suite 160Franklin, OH 45005-5200 · (513) 424-1440 · Fax (513) 424-1422
Phone(513) 424-1440
Fax(513) 424-1422
Sole ProprietorNo
Enumeration DateJune 21, 2005
Last NPPES UpdateApril 24, 2015
✔ NPI 1891791216 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyObstetrics & GynecologyAllopathic & Osteopathic Physicians
Taxonomy Code207V00000X
License✔ Licensed in OH · 35049923
Definition
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.
200 MEDICAL CENTER DR, Franklin, OH 45005
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Other Identifiers 12

Other000000275779OH · Anthem
Other0720009OH · Uhc
Other4992306OH · Choice Care
Other160009443OH · Medicare Railroad
Medicaid0542354OH
Medicare PINH456800OH
Medicare UPINA16526OH
Other311236707OH · Fhp Health Plan
Other641361OH · Aetna
Other5845285001OH · Cigna
Other0720009OH · Jf Molloy
Medicare PINSI0585913OH

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

SCOTT LAWRENCE ZOLLETT MD
Internal Medicine
200 MEDICAL CENTER DR, SUITE 490
MIDDLETOWN, OH 45005
Warren County (513) 424-1291
PREMIER HEALTH SPECIALISTS INC
Internal Medicine (Pulmonary Disease)
200 MEDICAL CENTER DR, SUITE 180B
MIDDLETOWN, OH 45005
Warren County (513) 420-8030
DR. CASEY RENEE BOYCE M.D.
Obstetrics & Gynecology
200 MEDICAL CENTER DR, SUITE 160
FRANKLIN, OH 45005
Warren County (513) 424-1440
HEALTH SPECIALISTS OF DAYTON INC
Internal Medicine (Cardiovascular Disease)
200 MEDICAL CENTER DR, SUITE 290
FRANKLIN, OH 45005
Warren County (513) 420-4660
KEVIN JAMES BELMONT
Perfusionist
200 MEDICAL CENTER DR
MIDDLETOWN, OH 45005
Warren County (513) 974-7508
KIRA SCHOFIELD MD
Surgery
200 MEDICAL CENTER DR, 4TH FLOOR
FRANKLIN, OH 45005
Warren County (937) 425-7110
SRIKANTH SADHU MD
Internal Medicine (Interventional Cardiology)
200 MEDICAL CENTER DR, STE 290A
MIDDLETOWN, OH 45005
Warren County (513) 425-7135
ZOLLETT MEDICAL ASSOCIATES, INC.
General Practice
200 MEDICAL CENTER DR, SUITE 490
FRANKLIN, OH 45005
Warren County (513) 424-1291

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Gregory Siewny's NPI number?

The NPI number for Gregory Siewny is 1891791216. It was assigned to this individual provider in the NPPES registry on June 21, 2005.

Where is Gregory Siewny located?

Gregory Siewny practices at 200 Medical Center Dr Suite 160, Franklin, OH 45005. The listed phone number is (513) 424-1440.

What is Gregory Siewny's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.

When was this NPI record last updated?

The NPPES record for Gregory Siewny was last updated on April 24, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.