Doctor profile · Federal record

Dr. Diego Granja, M.D. MSC

Internal Medicine Physician (CMS: Internal Medicine) · Internal Medicine Physician · Internal Medicine Physician · Internal Medicine Physician · Internal Medicine Physician · Hospitalist Physician · Springfield, MO

  • NPI 1417260811
  • Accepts Medicare
  • 22 yrs in practice
  • Licensed in 5 states
  • Male
  • Solo practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
3801 S National Ave
Springfield, MO 658075210
(417) 269-7728
fax (417) 269-7729
Additional location
20171 Chasewood Park Dr
Houston, TX 770701437
(183) 253-4500
Mailing address
Po Box 4046
Springfield, MO 658084046

Credentials & registration

NPPES · NUCC
NPI registered
July 2010 — 16 yrs on file
Profile last updated
October 4, 2023
Year of graduation
2004 — 22 yrs since
Specialty taxonomy
207R00000X — NUCC code
State licenses (5)
Texas #U1020 · Missouri #2018005489 · Delaware #C1-0010506 · Ohio #35-121780 · Florida #ME119339

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1417260811. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
611
Distinct HCPCS
4
Medicare allowed
$63,994
HCPCS Description Services Patients Avg allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 271 114 $77
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 180 84 $115
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 85 85 $166
99239 Hospital discharge day management, more than 30 minutes 75 75 $111

In context: peer comparison

Among 46 peers in Springfield Internal Medicine Physician, average services per provider: 117. This provider delivers 5.2× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$23
Transactions
1
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Janssen Pharmaceuticals, INC 1 $23.36

By nature of payment

Food and Beverage
$23

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
102
Patients
100
Total drug cost
$510
Drug Type Claims Patients Total cost
Amlodipine Besylate Generic 21 21 $60
Prednisone Generic 18 18 $75
Furosemide Generic 17 15 $56
Cefdinir Generic 16 16 $178
Oxycodone Hcl Generic 16 16 $55
Pantoprazole Sodium Generic 14 14 $86

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Diego Granja's medical specialty?
Dr. Diego Granja practices Internal Medicine Physician in Springfield, MO.
Where does Dr. Diego Granja practice?
Dr. Diego Granja practices at 3801 S National Ave, Springfield, MO 658075210. Office phone: 4172697728.
What is Dr. Diego Granja's NPI?
Dr. Diego Granja's National Provider Identifier (NPI) is 1417260811, issued by NPPES.
Does Dr. Diego Granja accept Medicare assignment?
Yes. Dr. Diego Granja accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Diego Granja commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Initial hospital care with moderate level of medical decision making (HCPCS 99223). Source: CMS Medicare Physician & Other Practitioners file.