Doctor profile · Federal record

Dr. Timothy Ryan, D.O.

Internal Medicine Physician (CMS: Internal Medicine) · Marshall, MO

  • NPI 1790721520
  • Accepts Medicare
  • 35 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
2303 S Highway 65
Marshall, MO 653403702
(660) 886-3364
fax (660) 886-6044
Mailing address
2303 S Highway 65 Ste A
Marshall, MO 653403735

Credentials & registration

NPPES · NUCC
NPI registered
June 2006 — 20 yrs on file
Profile last updated
June 7, 2024
Year of graduation
1991 — 35 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
Missouri #102684
Medicaid
MO #246948509

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1790721520. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,696
Distinct HCPCS
10
Medicare allowed
$103,382
HCPCS Description Services Patients Avg allowed
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 354 264 $8
99214 Established patient office or other outpatient visit, 30-39 minutes 341 269 $117
36415 Insertion of needle into vein for collection of blood sample 194 161 $7
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 148 54 $75
99213 Established patient office or other outpatient visit, 20-29 minutes 143 125 $83
90662 Influenza vaccine split virus, preservative free 96 96 $63
G0008 Administration of influenza virus vaccine 85 85 $28
93291 Evaluation of cardiac rhythm monitor system 66 22 $44
99238 Hospital discharge day management, 30 minutes or less 61 49 $75
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 46 43 $123

In context: peer comparison

Among 4 peers in this city , average services per provider: 126. This provider delivers 13× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$2,470
Transactions
126
Manufacturers
15
Payer (manufacturer) Industry Txns Amount
AstraZeneca Pharmaceuticals LP 15 $388.51
Novo Nordisk Inc 27 $304.53
Lilly USA, LLC 15 $268.06
ABBVIE INC. 12 $220.14
Amgen Inc. 13 $166.08
Boehringer Ingelheim Pharmaceuticals, Inc. 10 $152.10
E.R. Squibb & Sons, L.L.C. 5 $97.05
Impulse Dynamics (USA) Inc. 2 $93.18
Lundbeck LLC 5 $87.66
Grifols USA, LLC 5 $86.70
Boston Scientific Corporation 2 $70.97
Exact Sciences Corporation 4 $66.62
Bayer Healthcare Pharmaceuticals Inc. 4 $61.00
PFIZER INC. 4 $59.67
Abbott Laboratories 3 $52.54

By nature of payment

Food and Beverage
$2,470

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
9,620
Patients
1,968
Total drug cost
$120,727
Drug Type Claims Patients Total cost
Levothyroxine Sodium Generic 1,085 206 $14,214
Atorvastatin Calcium Generic 1,048 234 $10,028
Potassium Chloride Generic 818 169 $19,236
Omeprazole Generic 731 157 $9,928
Furosemide Generic 699 136 $3,679
Amlodipine Besylate Generic 676 144 $4,211
Lisinopril Generic 672 125 $4,997
Gabapentin Generic 601 103 $10,308
Metformin Hcl Generic 520 122 $3,932
Losartan Potassium Generic 511 104 $6,547

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Timothy Ryan's medical specialty?
Dr. Timothy Ryan practices Internal Medicine Physician in Marshall, MO.
Where does Dr. Timothy Ryan practice?
Dr. Timothy Ryan practices at 2303 S Highway 65, Marshall, MO 653403702. Office phone: 6608863364.
What is Dr. Timothy Ryan's NPI?
Dr. Timothy Ryan's National Provider Identifier (NPI) is 1790721520, issued by NPPES.
Does Dr. Timothy Ryan accept Medicare assignment?
Yes. Dr. Timothy Ryan accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Timothy Ryan commonly perform?
Top Medicare-reported procedures in 2023: Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (HCPCS 93010); Established patient office or other outpatient visit (HCPCS 99214); Insertion of needle into vein for collection of blood sample (HCPCS 36415). Source: CMS Medicare Physician & Other Practitioners file.