NPPES file of Aug 9, 2026

John Ligon, M.D.

Pediatric Hematology & Oncology Physician · Baltimore, MD

John Ligon, M.D. is a pediatric hematology & oncology physician with a practice address in Baltimore, Maryland, and NPI 1306188206, issued on Mar 19, 2013. Check the license (Maryland D0080982, 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1306188206
Name
John Ligon
Credential
M.D.
Primary taxonomy
Pediatric Hematology & Oncology Physician 2080P0207X
License number
D0080982 MD
Self-reported in NPPES; status is on the state search
Practice location
1800 Orleans St RM 11379, Baltimore, MD 21287
Phone
(410) 955-8751
Enumerated
Mar 19, 2013
Record last updated
Jul 31, 2019 (not updated in 7 years: call before relying on the address or phone)
Fax
(410) 955-0028
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 1800 Orleans St RM 11379

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

  1. Kristen Schratz, M.D.Pediatric Hematology & Oncology Physician1376819284
  2. Wilson Vasconez Samaniego, MDPediatric Hematology & Oncology Physician1164926002

Verify John Ligon in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMaryland Board of Physicians
    Search for license D0080982
    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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The practice group's MIPS final score for 2023 (Medicare payment program): 78.2 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score72.5
  2. Costout of 100 · 30%54.7
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $214.51

1 payment: food and beverage; the largest payer was National Marrow Donor Program. The 1,215 providers of this specialty with any payment received $7,404.07 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. John Ligon$214.51
  2. Specialty average$7,404.07

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

John Ligon among 93 pediatric hematology & oncology physician records in Maryland

John Ligon, M.D. is one of 93 pediatric hematology & oncology physician records with a practice address in Maryland. 41% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2013, is newer than 70% of them.

  • NPI issued2013 · 70% of these records are older, 22% newer
  • In a Medicare fileYes · 41% of these records are
  • In the CMS Doctors and Clinicians fileNo · 31% of these records are
  • Record last updated2019 · 60% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2080P0207X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Pediatric Hematology & Oncology Physician providers in Maryland

There are 93 pediatric hematology & oncology physician records in Maryland.

The 8 pediatric hematology & oncology physician records with the nearest ZIP codes

  1. James Badgett, M.D.Baltimore, MD 212871336283654
  2. James Casella, M.D.Baltimore, MD 212871679522361
  3. Meredith Chuk, MEREDITH CHUK, M.D.Baltimore, MD 212871427194661
  4. Kenneth Cohen, M.D.Baltimore, MD 212871306898218
  5. Kenneth Cooke, MDBaltimore, MD 212871104836733
  6. George Dover, M.D.Baltimore, MD 212871326095365
  7. Courtney Fitzhugh, M.D.Baltimore, MD 212871114064243
  8. Christopher Gamper, M.D., PH.D.Baltimore, MD 212871669518965

Common questions

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

John Ligon, M.D.'s National Provider Identifier (NPI) is 1306188206, issued on Mar 19, 2013. An NPI identifies a provider in billing; it is not a license.

Where is John Ligon, M.D. located?

The NPPES record lists a practice address at 1800 Orleans St RM 11379, Baltimore, MD, 21287. Phone: (410) 955-8751. Providers update this record themselves, so call before visiting.

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

NPPES lists Maryland license number D0080982, 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.

What is John Ligon, M.D.'s MIPS final score?

The 2023 MIPS final score is 78.2 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

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.