Justin K. To, MD
Obstetrics & Gynecology Physician · Bronx, NY
Justin K. To, MD is an obstetrics & gynecology physician with a practice address in Bronx, New York, and NPI 1457589863, issued on Jun 24, 2009. Check the license (New York 253521, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Justin K. To
- Credential
- MD
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- 253521 NY
Self-reported in NPPES; status is on the state search - Practice location
- 3332 Rochambeau Ave, Bronx, NY 10467
- Phone
- (718) 920-6311
- Enumerated
- Jun 24, 2009
- Record last updated
- Jan 29, 2026
- Medicare enrollment
- Enrolled (PECOS I20090821000210); accepts Medicare assignment
- Medical or professional school
- State University Of New York At Stony Brook, School Of Medicine, 2005
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 3,174 in New York → Look up another NPI →
Also registered at 3332 Rochambeau Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jason Brucker, MDStudent in an Organized Health Care Education/Training Program1174723373
- Jason Choi, DDSOral and Maxillofacial Surgery (Dentist)1508195280
- Nadia DouglasFamily Nurse Practitioner1720656192
- Geoffrey Duviner, DDSOral and Maxillofacial Surgery (Dentist)1871813063
- Marissa Erickson, DDSStudent in an Organized Health Care Education/Training Program1235872961
- John Gonzales, M.D.Ophthalmology Physician1881852366
Verify Justin K. To 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 253521Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
91% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024
15 Medicare Part D claims, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D.
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $6,023.72
25 payments; by number, the most common kind was food and beverage; the largest payer was Intuitive Surgical, Inc. The 21,429 providers of this specialty with any payment received $1,030.61 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
- Mmc Ob/gyn Faculty Practice PlanBrooklyn, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Justin K. To among 3,174 obstetrics & gynecology physician records in New York
Justin K. To, MD is one of 3,174 obstetrics & gynecology 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. Its NPI, issued in 2009, is newer than 64% of them.
- NPI issued2009 · 64% of these records are older, 32% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated2005 · median 2002 among the 1,870 with a school on file
- Record last updated2026 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X 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 & Gynecology Physician providers in New York
There are 3,174 obstetrics & gynecology physician records in New York.
All 3,174 in New York → Every provider in Bronx → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Akinori Adachi, MDBronx, NY 104671922188408
- Pamela Deforest, MDBronx, NY 104671720159106
- Michael Frey, MDBronx, NY 104671073693537
- Ronit Friedman, MDBronx, NY 104671518047075
- Samir Genadri, MDBronx, NY 104671164590840
- Mark Levie, MDBronx, NY 104671891875365
- Donald MichelBronx, NY 104671861533572
- Hamid Nikkhah, MDBronx, NY 104671740305812
Common questions
What is Justin K. To, MD's NPI number?
Justin K. To, MD's National Provider Identifier (NPI) is 1457589863, issued on Jun 24, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Justin K. To, MD located?
The NPPES record lists a practice address at 3332 Rochambeau Ave, Bronx, NY, 10467. Phone: (718) 920-6311. Providers update this record themselves, so call before visiting.
How can I verify Justin K. To, MD's license?
NPPES lists New York license number 253521, 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.
How much does Justin K. To, MD prescribe under Medicare Part D?
In 2024, Justin K. To, MD had 15 Medicare Part D claims; the average among obstetrics & gynecology physician prescribers was 165. Part D covers Medicare prescriptions only.
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.