NPPES file of Aug 9, 2026

John L. Ferrell, M.D.

Sports Medicine (Family Medicine) Physician · Rockville, MD

John L. Ferrell, M.D. is a sports medicine (family medicine) physician with a practice address in Rockville, Maryland, and NPI 1649256496, issued on Dec 22, 2005. Check the license (Maryland D74610, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1649256496
Name
John L. Ferrell
Credential
M.D.
Primary taxonomy
Sports Medicine (Family Medicine) Physician 207QS0010X
License numbers
D74610 MD
D0074610 MD
Self-reported in NPPES; status is on the state search
Practice location
11300 Rockville Pike Ste 615, Rockville, MD 20852
Phone
(202) 681-7671
Enumerated
Dec 22, 2005
Record last updated
Jul 21, 2022
Fax
(844) 681-7671
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 11300 Rockville Pike Ste 615

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Sean Mulvaney, M.D.Sports Medicine (Family Medicine) Physician1700911153

Verify John L. Ferrell in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMaryland Board of Physicians
    Search for license D74610
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Maryland license search

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93% fewer Medicare Part D claims than the average sports medicine (family medicine) physician in 2024

58 Medicare Part D claims for 33 beneficiaries, against an average of 855 among the 2,237 providers of this specialty who prescribed in Part D. 25 claims were for opioids.

  1. John Ferrell58
  2. Specialty average855

Most prescribed

  1. Tramadol Hcl17 claims

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: $40.26

2 payments; by number, the most common kind was food and beverage; the largest payer was Electronic Waveform Lab, Inc. The 1,218 providers of this specialty with any payment received $781.49 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. John Ferrell$40.26
  2. Specialty average$781.49

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

John L. Ferrell among 39 sports medicine (family medicine) physician records in Maryland

John L. Ferrell, M.D. is one of 39 sports medicine (family medicine) physician records with a practice address in Maryland. 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, 90% newer
  • In a Medicare fileYes · 67% of these records are
  • In the CMS Doctors and Clinicians fileNo · 62% of these records are
  • Record last updated2022 · 56% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207QS0010X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Sports Medicine (Family Medicine) Physician providers in Maryland

There are 39 sports medicine (family medicine) physician records in Maryland.

The 8 sports medicine (family medicine) physician records with the nearest ZIP codes

  1. Manthan MiraniRockville, MD 208521699359869
  2. Sean Mulvaney, M.D.Rockville, MD 208521700911153
  3. Timothy Boone, MDChevy Chase, MD 208151225425002
  4. Myro Lu, D.O.Bethesda, MD 208891447413323
  5. Christopher Jonas, D.O.Bethesda, MD 208141265529762
  6. Caesar Junker, M.D.Kensington, MD 208951043347149
  7. Jessica Curran, MDSilver Spring, MD 209041053724518
  8. Jennifer Gourdin, M.D.Silver Spring, MD 209041194168385

Common questions

What is John L. Ferrell, M.D.'s NPI number?

John L. Ferrell, M.D.'s National Provider Identifier (NPI) is 1649256496, issued on Dec 22, 2005. An NPI identifies a provider in billing; it is not a license.

Where is John L. Ferrell, M.D. located?

The NPPES record lists a practice address at 11300 Rockville Pike Ste 615, Rockville, MD, 20852. Phone: (202) 681-7671. Providers update this record themselves, so call before visiting.

How can I verify John L. Ferrell, M.D.'s license?

NPPES lists Maryland license number D74610, 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 John L. Ferrell, M.D. prescribe under Medicare Part D?

In 2024, John L. Ferrell, M.D. had 58 Medicare Part D claims for 33 beneficiaries; the average among sports medicine (family medicine) physician prescribers was 855. 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.