Doctor profile · Federal record

Dr. Spencer Maddox, MD

Cardiovascular Disease Physician (CMS: Cardiovascular Disease (Cardiology)) · Calhoun, GA

  • NPI 1518385830
  • Accepts Medicare
  • MIPS 81.5 / 100 · 2023
  • 12 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1035 Red Bud RD Ne
Calhoun, GA 307016010
(706) 625-6690
fax (706) 625-6691
Mailing address
Po Box 12938, C/O Clinic Management
Calhoun, GA 30703

Credentials & registration

NPPES · NUCC
NPI registered
April 2014 — 12 yrs on file
Profile last updated
August 30, 2023
Year of graduation
2014 — 12 yrs since
Specialty taxonomy
207RC0000X — NUCC code
State license (1)
Georgia #77070

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1518385830. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
5,335
Distinct HCPCS
10
Medicare allowed
$257,427
HCPCS Description Services Patients Avg allowed
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 1,943 1,437 $8
93000 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 718 344 $13
99214 Established patient office or other outpatient visit, 30-39 minutes 643 342 $120
93306 Ultrasound of heart with color-depicted blood flow, rate, direction and valve function 525 499 $66
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 177 97 $114
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 156 146 $166
78452 Nuclear medicine studies of heart muscle at rest and with stress and spect 147 146 $73
93016 Exercise or drug-induced heart stress test with electrocardiogram (ecg) with supervision by physician 146 145 $20
93018 Exercise or drug-induced heart stress test with electrocardiogram (ecg) with review by physician 146 145 $13
99204 New patient office or other outpatient visit, 45-59 minutes 115 115 $158

In context: peer comparison

Among 2 peers in Calhoun Cardiovascular Disease Physician, average services per provider: 201. This provider delivers 27× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$802
Transactions
29
Manufacturers
9
Payer (manufacturer) Industry Txns Amount
Boston Scientific Corporation 5 $271.46
Zoll Services LLC (A/K/A Zoll LifeCor Corp) 6 $202.48
Janssen Pharmaceuticals, INC 10 $183.84
Merck Sharp & Dohme LLC 2 $41.15
Amgen INC. 2 $34.38
Bayer Healthcare Pharmaceuticals INC. 1 $21.04
E.R. Squibb & Sons, L.L.C. 1 $18.21
Novartis Pharmaceuticals Corporation 1 $15.92
Heartflow, INC. 1 $13.86

By nature of payment

Food and Beverage
$802

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
3,323
Patients
1,075
Total drug cost
$534,293
Drug Type Claims Patients Total cost
Furosemide Generic 434 143 $2,068
Metoprolol Succinate Generic 369 113 $6,305
Eliquis (Apixaban) Brand 359 97 $385,367
Amlodipine Besylate Generic 316 114 $1,846
Metoprolol Tartrate Generic 285 97 $2,422
Isosorbide Mononitrate ER (Isosorbide Mononitrate) Brand 232 64 $4,710
Atorvastatin Calcium Generic 222 79 $3,212
Carvedilol Generic 222 74 $1,890
Lisinopril Generic 208 69 $1,558
Clopidogrel (Clopidogrel Bisulfate) Brand 153 51 $3,161

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Spencer Maddox's medical specialty?
Dr. Spencer Maddox practices Cardiovascular Disease Physician in Calhoun, GA.
Where does Dr. Spencer Maddox practice?
Dr. Spencer Maddox practices at 1035 Red Bud RD Ne, Calhoun, GA 307016010. Office phone: 7066256690.
What is Dr. Spencer Maddox's NPI?
Dr. Spencer Maddox's National Provider Identifier (NPI) is 1518385830, issued by NPPES.
Does Dr. Spencer Maddox accept Medicare assignment?
Yes. Dr. Spencer Maddox accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Spencer Maddox commonly perform?
Top Medicare-reported procedures in 2023: Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (HCPCS 93010); Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (HCPCS 93000); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.