NPPES file of Aug 9, 2026

Alphonsus G. Diamond, MD

Family Medicine Physician · Monticello, IN

Alphonsus G. Diamond, MD is a family medicine physician with a practice address in Monticello, Indiana, and NPI 1982831939, issued on Jun 17, 2009. Check the license (Indiana 01068613A, as entered in NPPES) on the Medical Licensing Board of Indiana; 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
1982831939
Name
Alphonsus G. Diamond
Credential
MD
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
01068613A IN
Self-reported in NPPES; status is on the state search
Practice location
810 S 6TH St, Monticello, IN 47960
Phone
(574) 583-6543
Enumerated
Jun 17, 2009
Record last updated
Feb 2, 2021 (not updated in 5 years: call before relying on the address or phone)
Fax
(574) 583-9502
Medicaid ID
201018230 IN
Medicare enrollment
Enrolled (PECOS I20110511000646); accepts Medicare assignment
Medical or professional school
Indiana University School Of Medicine, 2009
Telehealth
Offers telehealth (CMS)
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 810 S 6TH St

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

  1. Julie Becker, M.D.Family Medicine Physician1518969716
  2. Richard Carson, M.D.Surgery Physician1225090822
  3. Debra Graber, NP-CFamily Nurse Practitioner1275782807
  4. Melissa Gutwein, NPFamily Nurse Practitioner1396369856
  5. Ryan Hancock, M.D.Family Medicine Physician1518354257
  6. Frederic Henney, MDFamily Medicine Physician1376566265

Verify Alphonsus G. Diamond in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Licensing Board of Indiana
    Search for license 01068613A
    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 Indiana 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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2.2 times the Medicare Part D claims of the average family medicine physician in 2024

7,958 Medicare Part D claims for 508 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 108 claims were for opioids.

  1. Alphonsus Diamond7,958
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium567 claims
  2. Lisinopril342 claims
  3. Amlodipine Besylate299 claims
  4. Omeprazole288 claims
  5. Levothyroxine Sodium272 claims
  6. Gabapentin229 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 2 group practices

  1. Arnett Clinic LLCLafayette, IN
  2. IU Health Medical Group LLCIndianapolis, IN

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

Alphonsus G. Diamond among 3,506 family medicine physician records in Indiana

Alphonsus G. Diamond, MD is one of 3,506 family medicine physician records with a practice address in Indiana. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 64% of them.

  • NPI issued2009 · 64% of these records are older, 34% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 63% of these records are
  • Graduated2009 · median 2005 among the 2,196 with a school on file
  • Record last updated2021 · 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 207Q00000X and a Indiana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

10 family medicine physician records list a practice address in Monticello

They are 10 of the 137 NPPES records with a practice address in Monticello, and 3,506 family medicine physician records in Indiana.

The 8 family medicine physician records with the nearest ZIP codes

  1. David Barber, MDMonticello, IN 479601992774038
  2. Julie Becker, M.D.Monticello, IN 479601518969716
  3. Karen Hall, MDMonticello, IN 479601699744771
  4. Ryan Hancock, M.D.Monticello, IN 479601518354257
  5. Frederic Henney, MDMonticello, IN 479601376566265
  6. Toluwanimi Oyedele, MDMonticello, IN 479601114507456
  7. Charles Tribbett, M.D.Monticello, IN 479601164404893
  8. Thomas Wade, MDMonticello, IN 479601497714596

Common questions

What is Alphonsus G. Diamond, MD's NPI number?

Alphonsus G. Diamond, MD's National Provider Identifier (NPI) is 1982831939, issued on Jun 17, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Alphonsus G. Diamond, MD located?

The NPPES record lists a practice address at 810 S 6TH St, Monticello, IN, 47960. Phone: (574) 583-6543. Providers update this record themselves, so call before visiting.

How can I verify Alphonsus G. Diamond, MD's license?

NPPES lists Indiana license number 01068613A, as entered by the provider. Search the Medical Licensing Board of Indiana at https://www.in.gov/pla/professions/physicians-home/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Alphonsus G. Diamond, MD prescribe under Medicare Part D?

In 2024, Alphonsus G. Diamond, MD had 7,958 Medicare Part D claims for 508 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.