Doctor profile · Federal record
Dr. Mark Ritter, M.D.
Internal Medicine Physician (CMS: Family Practice) · Chesterton, IN
- NPI 1609939511
- Accepts Medicare
- MIPS 87.0 / 100 · 2023
- 40 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
2022 Kelle Dr
Chesterton, IN 463048708
(219) 395-2200
fax (219) 983-1837
Credentials & registration
- NPI registered
- December 2006 — 20 yrs on file
- Profile last updated
- September 14, 2020
- Year of graduation
- 1986 — 40 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- Indiana #01037402A
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1609939511. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
571
Distinct HCPCS
7
Medicare allowed
$64,583
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 402 | 167 | $119 | |
G0439 |
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 79 | 79 | $123 | |
90662 |
Influenza vaccine split virus, preservative free | 22 | 20 | $68 | |
G0008 |
Administration of influenza virus vaccine | 22 | 20 | $23 | |
99443 |
Telephone medical discussion with physician, 21-30 minutes | 18 | 15 | $121 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 16 | 16 | $157 | |
G0444 |
Annual depression screening, 5 to 15 minutes | 12 | 12 | $17 |
In context: peer comparison
Among 4 peers in this city , average services per provider: 147. This provider delivers 3.9× the peer median.Open Payments
Industry payments received
All-time total
$38
Transactions
1
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Stryker Corporation | 1 | $38.15 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
3,871
Patients
1,124
Total drug cost
$290,025
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 613 | 169 | $8,759 |
| Amlodipine Besylate | Generic | 512 | 160 | $4,923 |
| Rosuvastatin Calcium | Generic | 465 | 143 | $7,651 |
| Lisinopril | Generic | 374 | 102 | $3,053 |
| Metformin Hcl | Generic | 288 | 81 | $3,812 |
| Levothyroxine Sodium | Generic | 255 | 68 | $4,842 |
| Pantoprazole Sodium | Generic | 239 | 92 | $4,085 |
| Omeprazole | Generic | 181 | 53 | $2,556 |
| Allopurinol | Generic | 169 | 43 | $2,873 |
| Jardiance (Empagliflozin) | Brand | 148 | 37 | $238,681 |
Hospital affiliations
Frequently asked questions
What is Dr. Mark Ritter's medical specialty?
Dr. Mark Ritter practices Internal Medicine Physician in Chesterton, IN.
Where does Dr. Mark Ritter practice?
Dr. Mark Ritter practices at 2022 Kelle Dr, Chesterton, IN 463048708. Office phone: 2193952200.
What is Dr. Mark Ritter's NPI?
Dr. Mark Ritter's National Provider Identifier (NPI) is 1609939511, issued by NPPES.
Does Dr. Mark Ritter accept Medicare assignment?
Yes. Dr. Mark Ritter accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mark Ritter commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (HCPCS G0439); Influenza vaccine split virus, preservative free (HCPCS 90662). Source: CMS Medicare Physician & Other Practitioners file.