NPPES file of Aug 9, 2026

Carl Johnson, M.D.

Orthopaedic Surgery Physician · Lutherville Timonium, MD

Carl Johnson, M.D. is an orthopaedic surgery physician with a practice address in Lutherville Timonium, Maryland, and NPI 1821039108, issued on Jun 9, 2006. Check the license (Maryland D26445, as entered in NPPES) on the Maryland Board of Physicians; the federal record below is the public data PlainDoctor holds for this provider.

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

NPPES recordNPPES file of Aug 9, 2026
1821039108
Name
Carl Johnson
Credential
M.D.
Primary taxonomy
Orthopaedic Surgery Physician 207X00000X
License number
D26445 MD
Self-reported in NPPES; status is on the state search
Practice location
10753 Falls RD, Lutherville Timonium, MD 21093
Phone
(410) 583-2727
Enumerated
Jun 9, 2006
Record last updated
Feb 8, 2013 (not updated in 13 years: call before relying on the address or phone)
Medicaid ID
330191500 MD
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 10753 Falls RD

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

  1. Youngjee Choi, MDInternal Medicine Physician1760777809
  2. Allegra Hamman, CRNPNurse Practitioner1104049063
  3. Autumn Kidd, PT, DPTPhysical Therapist1063346153
  4. Heather Sateia, MDInternal Medicine Physician1508014481

Verify Carl Johnson in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMaryland Board of Physicians
    Search for license D26445
    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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Carl Johnson among 457 orthopaedic surgery physician records in Maryland

Carl Johnson, 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 not. Its NPI, issued in 2006, is newer than 17% of them.

  • NPI issued2006 · 17% of these records are older, 44% newer
  • In a Medicare fileNo · 79% of these records are
  • In the CMS Doctors and Clinicians fileNo · 65% of these records are
  • Record last updated2013 · 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. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

The 8 orthopaedic surgery physician records with the nearest ZIP codes

  1. Gurminder Ahuja, MDTimonium, MD 210931235207655
  2. Michael Ain, M.D.Lutherville, MD 210931629032917
  3. Andrew Cosgarea, M.D.Lutherville, MD 210931780631861
  4. Kristin Karim, MDTimonium, MD 210931811309131
  5. Emery Kim, MDLutherville, MD 210931720077514
  6. Edward McFarland, M.D.Lutherville, MD 210931467401018
  7. Lee Riley, M.D.Lutherville, MD 210931588606628
  8. George Ritchie, M.D.Timonium, MD 210931205181625

Common questions

What is Carl Johnson, M.D.'s NPI number?

Carl Johnson, M.D.'s National Provider Identifier (NPI) is 1821039108, issued on Jun 9, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Carl Johnson, M.D. located?

The NPPES record lists a practice address at 10753 Falls RD, Lutherville Timonium, MD, 21093. Phone: (410) 583-2727. Providers update this record themselves, so call before visiting.

How can I verify Carl Johnson, M.D.'s license?

NPPES lists Maryland license number D26445, 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. 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.