Nikolaos Zacharias, M.D.
Maternal & Fetal Medicine Physician · Houston, TX
Nikolaos Zacharias, M.D. is a maternal & fetal medicine physician with a practice address in Houston, Texas, and NPI 1972683225, issued on Oct 17, 2006. Check the license (Texas M2219, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Nikolaos Zacharias
- Credential
- M.D.
- Primary taxonomy
- Maternal & Fetal Medicine Physician 207VM0101X
- License number
- M2219 TX
Self-reported in NPPES; status is on the state search - Practice location
- 5656 Kelley Street, Houston, TX 77026
- Phone
- (713) 566-5976
- Enumerated
- Oct 17, 2006
- Record last updated
- Dec 19, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (713) 566-4521
- Medicare enrollment
- Enrolled (PECOS I20051104000213); may accept Medicare assignment
- Entity
- Type 1 · individual
8 nearest maternal & fetal medicine physician records → All 308 in Texas → Look up another NPI →
Also registered at 5656 Kelley Street
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Di Ai, M.D., PH.D.Anatomic Pathology Physician1225320849
- Zhenjian Cai, M.D.Anatomic Pathology & Clinical Pathology Physician1164781779
- Michael Covinsky, M.D.Anatomic Pathology & Clinical Pathology Physician1609823681
- Lisa De Ybarrondo, M.D.Pediatrics Physician1538192646
- Antonio Galvao Neto, M.D.Anatomic Pathology Physician1255469250
- Rukma Govindu, MDInternal Medicine Physician1124238191
Verify Nikolaos Zacharias in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license M2219Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $257.57
3 payments; by number, the most common kind was food and beverage; the largest payer was Janssen Scientific Affairs, LLC. The 784 providers of this specialty with any payment received $1,252.61 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Obstetrix Medical Group OF Texas Billing, Inc.Shenandoah, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Nikolaos Zacharias among 308 maternal & fetal medicine physician records in Texas
Nikolaos Zacharias, M.D. is one of 308 maternal & fetal medicine physician records with a practice address in Texas. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 9% of them.
- NPI issued2006 · 9% of these records are older, 54% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 61% of these records are
- Graduated1995 · median 2006 among the 187 with a school on file
- Record last updated2014 · 47% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207VM0101X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Maternal & Fetal Medicine Physician providers in Texas
There are 308 maternal & fetal medicine physician records in Texas.
All 308 in Texas → Every provider in Houston → Maternal & Fetal Medicine Physician nationwide →
The 8 maternal & fetal medicine physician records with the nearest ZIP codes
- Janice Whitty, M.D.Houston, TX 770261568441632
- Robert Ball, MDHouston, TX 770301447215751
- James Beeson, MDHouston, TX 770301215907670
- Michael Belfort, MDHouston, TX 770301184618753
- Sean Blackwell, MDHouston, TX 770301265493829
- Robert Carpenter, M.D.Houston, TX 770301801896295
- Carlos Carreno, MDHouston, TX 770301215922463
- Suneet Chauhan, MDHouston, TX 770301861461287
Common questions
What is Nikolaos Zacharias, M.D.'s NPI number?
Nikolaos Zacharias, M.D.'s National Provider Identifier (NPI) is 1972683225, issued on Oct 17, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Nikolaos Zacharias, M.D. located?
The NPPES record lists a practice address at 5656 Kelley Street, Houston, TX, 77026. Phone: (713) 566-5976. Providers update this record themselves, so call before visiting.
How can I verify Nikolaos Zacharias, M.D.'s license?
NPPES lists Texas license number M2219, as entered by the provider. Search the Texas Medical Board at https://profile.tmb.state.tx.us/Search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.