NPPES file of Aug 9, 2026

Richard V. Castle, D.O.

Hospitalist Physician · Brainerd, MN

Richard V. Castle, D.O. is a hospitalist physician with a practice address in Brainerd, Minnesota, and NPI 1629450689, issued on Jun 25, 2015. Check the license (Minnesota 64004, as entered in NPPES) on the Minnesota Board of Medical Practice; 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
1629450689
Name
Richard V. Castle
Credential
D.O.
Primary taxonomy
Hospitalist Physician 208M00000X
License numbers
64004 MN
0116028556 VA
Self-reported in NPPES; status is on the state search
Practice location
523 N 3RD St, Brainerd, MN 56401
Phone
(218) 829-2861
Enumerated
Jun 25, 2015
Record last updated
Jul 10, 2018 (not updated in 8 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20180803000032); 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 523 N 3RD St

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

  1. Mary Ambroz, RDRegistered Dietitian1649330176
  2. Corey Anderson, MDAnesthesiology Physician1114245297
  3. Thomas Applegate, M.D.Family Medicine Physician1023109261
  4. Peter Ataro, MDInternal Medicine Physician1306050067
  5. Robert Bacon, MDEmergency Medicine Physician1417925066
  6. Abigail Baillif, CNPFamily Nurse Practitioner1295305662

Verify Richard V. Castle in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMinnesota Board of Medical Practice
    Search for license 64004
    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 Minnesota 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.

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27% more Medicare Part D claims than the average hospitalist physician in 2024

663 Medicare Part D claims for 235 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D.

  1. Richard Castle663
  2. Specialty average521

Most prescribed

  1. Cefdinir37 claims
  2. Doxycycline Hyclate27 claims
  3. Metoprolol Succinate27 claims
  4. Prednisone26 claims
  5. Furosemide25 claims
  6. Amoxicillin-Clavulanate Potass24 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. St Josephs Medical CenterBrainerd, MN

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

Richard V. Castle among 401 hospitalist physician records in Minnesota

Richard V. Castle, D.O. is one of 401 hospitalist physician records with a practice address in Minnesota. 92% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 64% of them.

  • NPI issued2015 · 64% of these records are older, 33% newer
  • In a Medicare fileYes · 92% of these records are
  • In the CMS Doctors and Clinicians fileYes · 88% of these records are
  • Graduated2015 · median 2011 among the 354 with a school on file
  • Record last updated2018 · 49% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a Minnesota practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Hospitalist Physician providers in Minnesota

There are 401 hospitalist physician records in Minnesota.

The 8 hospitalist physician records with the nearest ZIP codes

  1. Chadwick Boggess, MDBrainerd, MN 564011780223164
  2. Tegan John, D.O.Brainerd, MN 564011669905337
  3. Alisha Ness, DOBrainerd, MN 564011003192154
  4. Daniel Njingeh, MDBrainerd, MN 564011609184506
  5. Linda Tigenoah, MDBrainerd, MN 564011235301623
  6. Nowa Ajayi, MDCrosby, MN 564411972034957
  7. Gail Clifford, MDCrosby, MN 564411750336137
  8. Mustaf Shariff, MDCrosby, MN 564411760986988

Common questions

What is Richard V. Castle, D.O.'s NPI number?

Richard V. Castle, D.O.'s National Provider Identifier (NPI) is 1629450689, issued on Jun 25, 2015. An NPI identifies a provider in billing; it is not a license.

Where is Richard V. Castle, D.O. located?

The NPPES record lists a practice address at 523 N 3RD St, Brainerd, MN, 56401. Phone: (218) 829-2861. Providers update this record themselves, so call before visiting.

How can I verify Richard V. Castle, D.O.'s license?

NPPES lists Minnesota license number 64004, as entered by the provider. Search the Minnesota Board of Medical Practice at https://mn.gov/boards/medical-practice/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Richard V. Castle, D.O. prescribe under Medicare Part D?

In 2024, Richard V. Castle, D.O. had 663 Medicare Part D claims for 235 beneficiaries; the average among hospitalist physician prescribers was 521. 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.