Doctor profile · Federal record

Dr. Nikolaos Zacharias, M.D.

Maternal & Fetal Medicine Physician (CMS: Obstetrics/Gynecology) · Houston, TX

  • NPI 1972683225
  • 31 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
5656 Kelley Street, Dept of OB/GYN Room # 2Ld80 001
Houston, TX 77026
(713) 566-5976
fax (713) 566-4521
Mailing address
6431 Fannin, Msb 3.286
Houston, TX 77030

Credentials & registration

NPPES · NUCC
NPI registered
October 2006 — 20 yrs on file
Profile last updated
December 19, 2014
Year of graduation
1995 — 31 yrs since
Specialty taxonomy
207VM0101X — NUCC code
State license (1)
Texas #M2219

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1972683225. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$258
Transactions
3
Manufacturers
2
Payer (manufacturer) Industry Txns Amount
Janssen Scientific Affairs, LLC 2 $187.00
GE HEALTHCARE 1 $70.57

By nature of payment

Food and Beverage
$258

Frequently asked questions

Auto-generated from federal data
What is Dr. Nikolaos Zacharias's medical specialty?
Dr. Nikolaos Zacharias practices Maternal & Fetal Medicine Physician in Houston, TX.
Where does Dr. Nikolaos Zacharias practice?
Dr. Nikolaos Zacharias practices at 5656 Kelley Street, Houston, TX 77026. Office phone: 7135665976.
What is Dr. Nikolaos Zacharias's NPI?
Dr. Nikolaos Zacharias's National Provider Identifier (NPI) is 1972683225, issued by NPPES.
Does Dr. Nikolaos Zacharias accept Medicare assignment?
Dr. Nikolaos Zacharias does not accept Medicare assignment for all services. Patients may be billed amounts beyond Medicare-allowed charges.