NPPES file of Aug 9, 2026

Larry K. Chase, MD

Undersea and Hyperbaric Medicine (Preventive Medicine) Physician · Springfield, MO

Larry K. Chase, MD is an undersea and hyperbaric medicine (preventive medicine) physician with a practice address in Springfield, Missouri, and NPI 1891790408, issued on Jun 20, 2005. Check the license (Missouri R2D20, 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
1891790408
Name
Larry K. Chase
Credential
MD
Primary taxonomy
Undersea and Hyperbaric Medicine (Preventive Medicine) Physician 2083P0011X
License number
R2D20 MO
Self-reported in NPPES; status is on the state search
Practice location
3525 S National Ave, Springfield, MO 65807
Phone
(417) 269-9950
Enumerated
Jun 20, 2005
Record last updated
Jun 10, 2019 (not updated in 7 years: call before relying on the address or phone)
Fax
(417) 269-9959
Medicaid ID
201827912 MO
Medicare enrollment
Enrolled (PECOS I20070205000518); accepts Medicare assignment
Medical or professional school
University Of Oklahoma College Of Medicine, 1982
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 3525 S National Ave

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

  1. Steven Atwood, M. D.Specialist1386643773
  2. Maryann Blevins, NPNurse Practitioner1073610895
  3. Manuel Camejo, M.DObstetrics & Gynecology Physician1225016637
  4. Clint Carroz, ATC, MEDAthletic Trainer1992100333
  5. Stefanie Hawkins, PHARMDAmbulatory Care Pharmacist1922452457
  6. Nabil Kamel, M.D.Geriatric Medicine (Internal Medicine) Physician1326080276

Verify Larry K. Chase 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 R2D20
    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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90% fewer Medicare Part D claims than the average undersea and hyperbaric medicine (preventive medicine) physician in 2024

31 Medicare Part D claims for 19 beneficiaries, against an average of 308 among the 148 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Larry Chase31
  2. Specialty average308

Most prescribed

  1. Doxycycline Hyclate14 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).

Undersea and Hyperbaric Medicine (Preventive Medicine) Physician providers in Missouri

There are 12 undersea and hyperbaric medicine (preventive medicine) physician records in Missouri.

Other undersea and hyperbaric medicine (preventive medicine) physician records in Missouri

  1. Valinda Allen, MDSaint Louis, MO1992898795
  2. Viktor Ballada, M.D.Saint Louis, MO1972543460
  3. Tanner Boes, MDSaint Louis, MO1013351477
  4. Donald Cotton, MDJoplin, MO1407963705
  5. William Duff, MDOsage Beach, MO1083723944
  6. Jason Forbes, D.O.Springfield, MO1841357357
  7. David Hagedorn, M.D.Joplin, MO1346283892
  8. Gillian JonesSaint Joseph, MO1558651547
  9. Brandon Mahurin, DOJoplin, MO1669676417
  10. Joseph Newman, M.D.Joplin, MO1649213190

Common questions

What is Larry K. Chase, MD's NPI number?

Larry K. Chase, MD's National Provider Identifier (NPI) is 1891790408, issued on Jun 20, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Larry K. Chase, MD located?

The NPPES record lists a practice address at 3525 S National Ave, Springfield, MO, 65807. Phone: (417) 269-9950. Providers update this record themselves, so call before visiting.

How can I verify Larry K. Chase, MD's license?

NPPES lists Missouri license number R2D20, 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 Larry K. Chase, MD prescribe under Medicare Part D?

In 2024, Larry K. Chase, MD had 31 Medicare Part D claims for 19 beneficiaries; the average among undersea and hyperbaric medicine (preventive medicine) physician prescribers was 308. 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.