Robert Knox, M.D.
Vascular Surgery Physician · Silver Spring, MD
Robert Knox, M.D. is a vascular surgery physician with a practice address in Silver Spring, Maryland, and NPI 1023005915, issued on Oct 5, 2005. Check the license (Maryland D0058600, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.
- Name
- Robert Knox
- Credential
- M.D.
- Primary taxonomy
- Vascular Surgery Physician 2086S0129X
- License number
- D0058600 MD
Self-reported in NPPES; status is on the state search - Practice location
- 1400 Forest Glen RD Ste 330, Silver Spring, MD 20910
- Phone
- (301) 905-3600
- Enumerated
- Oct 5, 2005
- Record last updated
- Jun 28, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (301) 905-3601
- Medicaid ID
- 403587900 MD
- Medicare enrollment
- Enrolled (PECOS I20240930002001); accepts Medicare assignment
- Medical or professional school
- Columbia University College Of Physicians And Surgeons, 1990
- Entity
- Type 1 · individual
8 nearest vascular surgery physician records → All 103 in Maryland → Look up another NPI →
Also registered at 1400 Forest Glen RD Ste 330
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Matthew Dong, MD, MPHSurgery Physician1427347095
Verify Robert Knox in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of Physicians
Search for license D0058600Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
89% fewer Medicare Part D claims than the average vascular surgery physician in 2024
23 Medicare Part D claims for 19 beneficiaries, against an average of 201 among the 3,936 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: $492.42
8 payments; by number, the most common kind was food and beverage; the largest payer was Medtronic, Inc. The 4,059 providers of this specialty with any payment received $6,178.00 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 2 group practices
- Luminis Health Medical Group, LLCLanham, MD
- West Tennessee Medical Group IncJackson, TN
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Robert Knox among 103 vascular surgery physician records in Maryland
Robert Knox, M.D. is one of 103 vascular surgery physician records with a practice address in Maryland. 83% 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, 87% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 77% of these records are
- Graduated1990 · median 2001 among the 79 with a school on file
- Record last updated2021 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2086S0129X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Vascular Surgery Physician providers in Maryland
There are 103 vascular surgery physician records in Maryland.
All 103 in Maryland → Every provider in Silver Spring → Vascular Surgery Physician nationwide →
The 8 vascular surgery physician records with the nearest ZIP codes
- Jane Lingelbach, MDSilver Spring, MD 209041013020718
- Garry Ruben, M.D.Silver Spring, MD 209041871532663
- Joseph Bozzay, M.D.Bethesda, MD 208891508279670
- Erin Koelling, MDBethesda, MD 208891093910556
- Brandon Propper, MDBethesda, MD 208891033320213
- Anna Romagnoli, M.D.Bethesda, MD 208891265781835
- James Sampson, M.D.Bethesda, MD 208891093799165
- David Schechtman, MDBethesda, MD 208891629438874
Common questions
What is Robert Knox, M.D.'s NPI number?
Robert Knox, M.D.'s National Provider Identifier (NPI) is 1023005915, issued on Oct 5, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Robert Knox, M.D. located?
The NPPES record lists a practice address at 1400 Forest Glen RD Ste 330, Silver Spring, MD, 20910. Phone: (301) 905-3600. Providers update this record themselves, so call before visiting.
How can I verify Robert Knox, M.D.'s license?
NPPES lists Maryland license number D0058600, 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.
How much does Robert Knox, M.D. prescribe under Medicare Part D?
In 2024, Robert Knox, M.D. had 23 Medicare Part D claims for 19 beneficiaries; the average among vascular surgery physician prescribers was 201. 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.