Karen A. Gronau, MD
Obstetrics Physician · New York, NY
Karen A. Gronau, MD is an obstetrics physician with a practice address in New York, New York, and NPI 1215041371, issued on Aug 18, 2006. Check the license (New York 228230, as entered in NPPES) on the NYS Education Department, Office of the Professions; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Karen A. Gronau
- Credential
- MD
- Primary taxonomy
- Obstetrics Physician 207VX0000X
- License number
- 228230 NY
Self-reported in NPPES; status is on the state search - Practice location
- 150 E 32ND St, New York, NY 10016
- Phone
- (212) 447-5330
- Enumerated
- Aug 18, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (212) 889-7089
- Entity
- Type 1 · individual
8 nearest obstetrics physician records → All 118 in New York → Look up another NPI →
Also registered at 150 E 32ND St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Seth Cohen, M.D.Urology Physician1922249135
- Geovanni Espinosa, N.D.Acupuncturist1306016837
- Mara Goldstein, LCSWClinical Social Worker1568083954
Verify Karen A. Gronau in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
Search for license 228230Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Karen A. Gronau among 118 obstetrics physician records in New York
Karen A. Gronau, MD is one of 118 obstetrics physician records with a practice address in New York. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2006, is newer than 3% of them.
- NPI issued2006 · 3% of these records are older, 42% newer
- In a Medicare fileNo · 76% of these records are
- In the CMS Doctors and Clinicians fileNo · 52% of these records are
- Record last updated2007 · 64% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207VX0000X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Obstetrics Physician providers in New York
There are 118 obstetrics physician records in New York. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 118 in New York → Every provider in New York → Obstetrics Physician nationwide →
The 8 obstetrics physician records with the nearest ZIP codes
- Mary Cathryn EarnhardtNew York, NY 100161164080800
- Alison Ho, MDNew York, NY 100161275516445
- Ilana Lustig, MDNew York, NY 100161689721854
- Gary Markoff, MDNew York, NY 100161306828173
- Sarah Shawki, M.D.New York, NY 100161437447182
- Robin Brown, M.DNew York, NY 100191669433264
- Hope Langer, MDNew York, NY 100191538121744
- Heather Lurie, MDNew York, NY 100191972564508
Common questions
What is Karen A. Gronau, MD's NPI number?
Karen A. Gronau, MD's National Provider Identifier (NPI) is 1215041371, issued on Aug 18, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Karen A. Gronau, MD located?
The NPPES record lists a practice address at 150 E 32ND St, New York, NY, 10016. Phone: (212) 447-5330. Providers update this record themselves, so call before visiting.
How can I verify Karen A. Gronau, MD's license?
NPPES lists New York license number 228230, as entered by the provider. Search the NYS Education Department, Office of the Professions at https://www.op.nysed.gov/services/verifications/online-verification-searches. 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. 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.