Ralf Holzer, MD
Pediatric Cardiology Physician · New York, NY
Ralf Holzer, MD is a pediatric cardiology physician with a practice address in New York, New York, and NPI 1629064795, issued on Sep 23, 2005. Check the license (New York 287050, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Ralf Holzer
- Credential
- MD
- Primary taxonomy
- Pediatric Cardiology Physician 2080P0202X
- License numbers
- 287050 NY
35086049 OH
Self-reported in NPPES; status is on the state search - Practice location
- 525 E 68TH St, New York, NY 10065
- Phone
- (212) 746-3561
- Enumerated
- Sep 23, 2005
- Record last updated
- Oct 15, 2018 (not updated in 8 years: call before relying on the address or phone)
- Medicaid IDs
- 64107337 KY
3810004595 WV
2576985 OH - Medicare enrollment
- Enrolled (PECOS I20221202000663); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest pediatric cardiology physician records → All 246 in New York → Look up another NPI →
Also registered at 525 E 68TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Ralf Holzer 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 287050Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Regents OF The Univ OF CASacramento, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ralf Holzer among 246 pediatric cardiology physician records in New York
Ralf Holzer, MD is one of 246 pediatric cardiology physician records with a practice address in New York. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 88% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileYes · 54% of these records are
- Graduated1994 · median 2004 among the 134 with a school on file
- Record last updated2018 · 50% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2080P0202X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Pediatric Cardiology Physician providers in New York
There are 246 pediatric cardiology physician records in New York.
All 246 in New York → Every provider in New York → Pediatric Cardiology Physician nationwide →
The 8 pediatric cardiology physician records with the nearest ZIP codes
- Jeffrey Dayton, MDNew York, NY 100651902059207
- Denis Donovan, M.D.New York, NY 100651184155384
- Rebecca Epstein, MDNew York, NY 100651841645504
- Emina Hodzic, MDNew York, NY 100651942620141
- Amir Jahanshad, MDNew York, NY 100651477057099
- Grace Kong, M.D.New York, NY 100651235593328
- Hanano WatanabeNew York, NY 100651700220191
- Ivan Dimich, M.D.New York, NY 100751134442999
Common questions
What is Ralf Holzer, MD's NPI number?
Ralf Holzer, MD's National Provider Identifier (NPI) is 1629064795, issued on Sep 23, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Ralf Holzer, MD located?
The NPPES record lists a practice address at 525 E 68TH St, New York, NY, 10065. Phone: (212) 746-3561. Providers update this record themselves, so call before visiting.
How can I verify Ralf Holzer, MD's license?
NPPES lists New York license number 287050, 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. 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.