Registry data as of Aug 27, 2026

Mark Chambers, M.D.

Family Medicine Physician · Springfield, MO

Mark Chambers, M.D. is a family medicine physician with a practice address in Springfield, Missouri, and NPI 1134237456, issued on Aug 27, 2006. Check the license (Missouri 108168, 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, loaded Aug 27, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1134237456
Name
Mark Chambers
Credential
M.D.
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
108168 MO
Self-reported in NPPES; status is on the state search
Practice location
3850 S National Ave, Springfield, MO 65807
Phone
(417) 269-7878
Enumerated
Aug 27, 2006
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 3850 S National Ave

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

  1. Ibrahim Abdalla, M.D.Specialist1437154630
  2. Mark Barrett, MDDiagnostic Radiology Physician1447415203
  3. Christian Brodeur, MDDiagnostic Radiology Physician1871609453
  4. Sue Brown, LPCCounselor1144356155
  5. Roberto Canales, P.A.Medical Physician Assistant1821008541
  6. Robert Carolla, M.D.Hematology & Oncology Physician1225006828

Verify Mark Chambers 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 108168
    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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

89% fewer Medicare Part D claims than the average family medicine physician in 2024

376 Medicare Part D claims for 40 beneficiaries, against an average of 3,519 among the 111,126 providers of this specialty who prescribed in Part D. Brand-name drugs were 23% of claims. 32 claims were for opioids.

  1. Mark Chambers376
  2. Specialty average3,519

Most prescribed

  1. Atorvastatin Calcium19 claims
  2. Gabapentin15 claims
  3. Hydrocodone-Acetaminophen13 claims
  4. Rosuvastatin Calcium13 claims
  5. Alprazolam12 claims
  6. Lantus Solostar11 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: $119.33

2 payments, mostly food and beverage; the largest payer was GE Healthcare. The 53,013 providers of this specialty with any payment received $861.30 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Mark Chambers$119.33
  2. Specialty average$861.30

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

233 family medicine physician records list a Springfield practice address

They are 233 of the 6,403 NPPES records with a Springfield practice address, and 2,920 family medicine physician records in Missouri.

Other family medicine physician records in Missouri

  1. Mohammad Abbas, DOKirksville, MO1518537679
  2. Karam Abdelmasih, MD, APFestus, MO1093288508
  3. Afsheen Abdullah Patel, MDLees Summit, MO1598070377
  4. Christopher Abercrombie, DOArnold, MO1093787558
  5. Avery Abernathy, D.O.Kansas City, MO1013207836
  6. Kristia Abernathy, MDSaint Louis, MO1710545405
  7. Grant Abkemeier, DOColumbia, MO1922933712
  8. Beatrice Abraham, DOLebanon, MO1861056004
  9. John Abraham, M.D.Springfield, MO1760595136
  10. Samer Abu-Amer, M.D.Independence, MO1154880474

Common questions

What is Mark Chambers, M.D.'s NPI number?

Mark Chambers, M.D.'s National Provider Identifier (NPI) is 1134237456, issued on Aug 27, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Mark Chambers, M.D. located?

The NPPES record lists a practice address at 3850 S National Ave, Springfield, MO, 65807. Phone: (417) 269-7878. Providers update this record themselves, so call before visiting.

How can I verify Mark Chambers, M.D.'s license?

NPPES lists Missouri license number 108168, 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 Mark Chambers, M.D. prescribe under Medicare Part D?

In 2024, Mark Chambers, M.D. had 376 Medicare Part D claims for 40 beneficiaries; the average among family medicine physician prescribers was 3,519. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.