Doctor profile · Federal record

Dr. Mary Belles, MD

Internal Medicine Physician (CMS: Internal Medicine) · Nashville, TN

  • NPI 1124581913
  • Accepts Medicare
  • 7 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
4220 Harding Pike Ste 500
Nashville, TN 372052005
(615) 222-8977

Credentials & registration

NPPES · NUCC
NPI registered
April 2019 — 7 yrs on file
Profile last updated
July 19, 2023
Year of graduation
2019 — 7 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
Tennessee #65661

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1124581913. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
943
Distinct HCPCS
5
Medicare allowed
$92,846
HCPCS Description Services Patients Avg allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 398 141 $73
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 289 108 $111
99239 Hospital discharge day management, more than 30 minutes 160 159 $105
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 85 84 $162
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 11 11 $121

In context: peer comparison

Among 168 peers in Nashville Internal Medicine Physician, average services per provider: 100. This provider delivers 9.4× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
229
Patients
149
Total drug cost
$2,106
Drug Type Claims Patients Total cost
Prednisone Generic 26 24 $86
Amlodipine Besylate Generic 23 15 $89
Cefdinir Generic 23 22 $276
Oxycodone Hcl Generic 23 23 $43
Amoxicillin-Clavulanate Potass (Amoxicillin/Potassium Clav) Brand 22 22 $166
Hydralazine Hcl Generic 20 15 $149
Atorvastatin Calcium Generic 17 15 $127
Potassium Chloride Generic 17 0 $270
Lisinopril Generic 16 0 $156
Pantoprazole Sodium Generic 16 13 $157

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Mary Belles's medical specialty?
Dr. Mary Belles practices Internal Medicine Physician in Nashville, TN.
Where does Dr. Mary Belles practice?
Dr. Mary Belles practices at 4220 Harding Pike Ste 500, Nashville, TN 372052005. Office phone: 6152228977.
What is Dr. Mary Belles's NPI?
Dr. Mary Belles's National Provider Identifier (NPI) is 1124581913, issued by NPPES.
Does Dr. Mary Belles accept Medicare assignment?
Yes. Dr. Mary Belles accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mary Belles 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); Hospital discharge day management (HCPCS 99239). Source: CMS Medicare Physician & Other Practitioners file.