NPPES file of Aug 9, 2026

Diego Hernan Granja, M.D. MSC

Internal Medicine Physician · Springfield, MO

Diego Hernan Granja, M.D. MSC is an internal medicine physician with a practice address in Springfield, Missouri, and NPI 1417260811, issued on Jul 14, 2010. Check the license (Missouri 2018005489, 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
1417260811
Name
Diego Hernan Granja
Credential
M.D. MSC
Primary taxonomy
Internal Medicine Physician 207R00000X
License numbers
2018005489 MO
U1020 TX
C1-0010506 DE
ME119339 FL
35-121780 OH
Self-reported in NPPES; status is on the state search
Practice location
3801 S National Ave, Springfield, MO 65807
Phone
(417) 269-7728
Enumerated
Jul 14, 2010
Record last updated
Oct 4, 2023
Fax
(417) 269-7729
Medicare enrollment
Enrolled (PECOS I20231018000796); 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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8 nearest internal medicine physician records → All 2,604 in Missouri → Look up another NPI →

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 Diego Hernan Granja 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 2018005489    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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89% fewer Medicare Part D claims than the average internal medicine physician in 2024

364 Medicare Part D claims for 128 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 24 claims were for opioids.

  1. Diego Granja364
  2. Specialty average3,176

Most prescribed

  1. Cefdinir22 claims
  2. Atorvastatin Calcium18 claims
  3. Amlodipine Besylate17 claims
  4. Furosemide15 claims
  5. Hydrocodone-Acetaminophen15 claims
  6. Amoxicillin-Clavulanate Potass13 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: $23.36

1 payment: food and beverage; the largest payer was Janssen Pharmaceuticals, Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Diego Granja$23.36
  2. Specialty average$1,303.06

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

Bills Medicare through one group practice

  1. Hospital Medicine Services OF TX, PLLCHouston, TX

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

Diego Hernan Granja among 2,604 internal medicine physician records in Missouri

Diego Hernan Granja, M.D. MSC 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 2010, is newer than 52% of them.

  • NPI issued2010 · 52% of these records are older, 46% newer
  • In a Medicare fileYes · 77% of these records are
  • In the CMS Doctors and Clinicians fileYes · 55% of these records are
  • Graduated2004 · median 2006 among the 1,443 with a school on file
  • Record last updated2023 · 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.

All 2,604 in Missouri → Every provider in Springfield → Internal Medicine Physician nationwide →

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 Diego Hernan Granja, M.D. MSC's NPI number?

Diego Hernan Granja, M.D. MSC's National Provider Identifier (NPI) is 1417260811, issued on Jul 14, 2010. An NPI identifies a provider in billing; it is not a license.

Where is Diego Hernan Granja, M.D. MSC located?

The NPPES record lists a practice address at 3801 S National Ave, Springfield, MO, 65807. Phone: (417) 269-7728. Providers update this record themselves, so call before visiting.

How can I verify Diego Hernan Granja, M.D. MSC's license?

NPPES lists Missouri license number 2018005489, 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 Diego Hernan Granja, M.D. MSC prescribe under Medicare Part D?

In 2024, Diego Hernan Granja, M.D. MSC had 364 Medicare Part D claims for 128 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.