John E. Herzenberg, M.D.
Orthopaedic Surgery Physician · Baltimore, MD
John E. Herzenberg, M.D. is an orthopaedic surgery physician with a practice address in Baltimore, Maryland, and NPI 1922041557, issued on Jun 13, 2006. Check the license (Maryland D42214, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.
- Name
- John E. Herzenberg
- Credential
- M.D.
- Primary taxonomy
- Orthopaedic Surgery Physician 207X00000X
- License number
- D42214 MD
Self-reported in NPPES; status is on the state search - Practice location
- 2401 W Belvedere Avenue, Baltimore, MD 21215
- Phone
- (410) 601-8700
- Enumerated
- Jun 13, 2006
- Record last updated
- Nov 29, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (410) 601-9575
- Entity
- Type 1 · individual
8 nearest orthopaedic surgery physician records → All 457 in Maryland → Look up another NPI →
Also registered at 2401 W Belvedere Avenue
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify John E. Herzenberg in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of Physicians
Search for license D42214Check 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: $234,647.76
9 payments; by number, the most common kind was royalty or license; the largest payer was Smith+Nephew, Inc. The 15,003 providers of this specialty with any payment received $23,022.89 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.
John E. Herzenberg among 457 orthopaedic surgery physician records in Maryland
John E. Herzenberg, M.D. is one of 457 orthopaedic surgery physician records with a practice address in Maryland. 79% 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 17% of them.
- NPI issued2006 · 17% of these records are older, 44% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 65% of these records are
- Record last updated2007 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207X00000X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Orthopaedic Surgery Physician providers in Maryland
There are 457 orthopaedic surgery physician records in Maryland.
All 457 in Maryland → Every provider in Baltimore → Orthopaedic Surgery Physician nationwide →
The 8 orthopaedic surgery physician records with the nearest ZIP codes
- Albert Aboulafia, M.D.Baltimore, MD 212151447213608
- Michael Assayag, M.D.Baltimore, MD 212151457726713
- Stephen Bell, M.D.Baltimore, MD 212151205899176
- Janet Conway, M.D.Baltimore, MD 212151427009901
- Ronald Delanois, M.D.Baltimore, MD 212151497706824
- Nikola Dobrasevic, MDBaltimore, MD 212151336358787
- Connor Green, MDBaltimore, MD 212151396150348
- Daniel Griffin, M.D.Baltimore, MD 212151184972481
Common questions
What is John E. Herzenberg, M.D.'s NPI number?
John E. Herzenberg, M.D.'s National Provider Identifier (NPI) is 1922041557, issued on Jun 13, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John E. Herzenberg, M.D. located?
The NPPES record lists a practice address at 2401 W Belvedere Avenue, Baltimore, MD, 21215. Phone: (410) 601-8700. Providers update this record themselves, so call before visiting.
How can I verify John E. Herzenberg, M.D.'s license?
NPPES lists Maryland license number D42214, as entered by the provider. Search the Maryland Board of Physicians at https://www.mbp.state.md.us/. 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.