NPPES file of Aug 9, 2026

Megan Johnson, DO

Internal Medicine Physician · Springfield, MO

Megan Johnson, DO is an internal medicine physician with a practice address in Springfield, Missouri, and NPI 1841866936, issued on May 31, 2021. Check the license (Missouri 2024018950, as entered in NPPES) on the Missouri Board of Registration for the Healing Arts; 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
1841866936
Name
Megan Johnson
Credential
DO
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
2024018950 MO
Self-reported in NPPES; status is on the state search
Practice location
3801 S National Ave, Springfield, MO 65807
Phone
(417) 269-6000
Enumerated
May 31, 2021
Record last updated
Aug 15, 2024
Medicare enrollment
Enrolled (PECOS I20240905002275); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 3801 S National Ave

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

  1. Carolyn Adams, LCSW, RN, FNPFamily Nurse Practitioner1225108558
  2. Charles Adler, PA-CPhysician Assistant1487950127
  3. Dustan Afshar, D.OAnesthesiology Physician1245618370
  4. Kaleb AfsharAnesthesiology Physician1003310608
  5. Emmanuel Akosah, MDInternal Medicine Physician1508170283
  6. Matthew Alder, MDPediatric Critical Care Medicine Physician1609019470

Verify Megan Johnson in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMissouri Board of Registration for the Healing Arts
    Search for license 2024018950
    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 Missouri license search

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80% fewer Medicare Part D claims than the average internal medicine physician in 2024

643 Medicare Part D claims for 89 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.

  1. Megan Johnson643
  2. Specialty average3,176

Most prescribed

  1. Metformin Hcl26 claims
  2. Atorvastatin Calcium25 claims
  3. Carvedilol25 claims
  4. Citalopram Hbr24 claims
  5. Lisinopril24 claims
  6. Levothyroxine Sodium23 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.

Bills Medicare through one group practice

  1. Lester E Cox Medical CentersSpringfield, MO

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Megan Johnson among 2,604 internal medicine physician records in Missouri

Megan Johnson, DO is one of 2,604 internal medicine physician records with a practice address in Missouri. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 79% of them.

  • NPI issued2021 · 79% of these records are older, 17% newer
  • In a Medicare fileYes · 77% of these records are
  • In the CMS Doctors and Clinicians fileYes · 55% of these records are
  • Graduated2021 · median 2006 among the 1,443 with a school on file
  • Record last updated2024 · 48% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

135 internal medicine physician records list a practice address in Springfield

They are 135 of the 6,403 NPPES records with a practice address in Springfield, and 2,604 internal medicine physician records in Missouri.

The 8 internal medicine physician records with the nearest ZIP codes

  1. William Baird, DOSpringfield, MO 658071194798512
  2. Gigi Baker, MDSpringfield, MO 658071184666117
  3. John Caster, MDSpringfield, MO 658071902849854
  4. John Dexter, MDSpringfield, MO 658071205805538
  5. Stephen Holmes, MDSpringfield, MO 658071831132240
  6. Frederick Lobati, M.D.Springfield, MO 658071306823273
  7. William Moore, MDSpringfield, MO 658071700829819
  8. Lisa Pham, M.D.Springfield, MO 658071275502379

Common questions

What is Megan Johnson, DO's NPI number?

Megan Johnson, DO's National Provider Identifier (NPI) is 1841866936, issued on May 31, 2021. An NPI identifies a provider in billing; it is not a license.

Where is Megan Johnson, DO located?

The NPPES record lists a practice address at 3801 S National Ave, Springfield, MO, 65807. Phone: (417) 269-6000. Providers update this record themselves, so call before visiting.

How can I verify Megan Johnson, DO's license?

NPPES lists Missouri license number 2024018950, as entered by the provider. Search the Missouri Board of Registration for the Healing Arts at https://www.fsmb.org/contact-a-state-medical-board/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Megan Johnson, DO prescribe under Medicare Part D?

In 2024, Megan Johnson, DO had 643 Medicare Part D claims for 89 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.