Doctor profile · Federal record
Dr. Jon Ritter, MD
Anatomic Pathology & Clinical Pathology Physician (CMS: Pathology) · Saint Louis, MO
- NPI 1366460784
- Accepts Medicare
- MIPS 79.3 / 100 · 2023
- 38 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
1 Barnes Jewish Hospital Plz, Div PA Anatomic and Molecular Path
Saint Louis, MO 631101003
(314) 362-5641
fax (314) 362-0369 - Mailing address
-
Po Box 7412011
Chicago, IL 606742011
Credentials & registration
- NPI registered
- July 2006 — 20 yrs on file
- Profile last updated
- April 17, 2025
- Year of graduation
- 1988 — 38 yrs since
- Specialty taxonomy
- 207ZP0102X — NUCC code
- State license (1)
- Missouri #100817
- Medicaid
- MO #203566518
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1366460784. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,818
Distinct HCPCS
10
Medicare allowed
$72,169
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
88305 |
Pathology examination of tissue using a microscope, intermediate complexity | 955 | 467 | $36 | |
88360 |
Microscopic genetic analysis of tumor, manual | 141 | 51 | $41 | |
88341 |
Special stained specimen slides to examine tissue, each additional procedure | 140 | 61 | $28 | |
88307 |
Pathology examination of tissue using a microscope, moderately high complexity | 131 | 81 | $80 | |
88342 |
Special stained specimen slides to examine tissue, initial procedure | 110 | 106 | $34 | |
88331 |
Pathology examination of specimen during surgery, first tissue block | 85 | 33 | $60 | |
88363 |
Examination of archival tissue for genetic analysis | 59 | 59 | $19 | |
88304 |
Pathology examination of tissue using a microscope, moderately low complexity | 49 | 32 | $11 | |
88309 |
Pathology examination of tissue using a microscope, high complexity | 39 | 31 | $141 | |
88313 |
Special stained specimen slides to examine tissue including interpretation and report | 30 | 12 | $12 |
In context: peer comparison
Among 41 peers in this city , average services per provider: 137. This provider delivers 13× the peer median.Open Payments
Industry payments received
All-time total
$8,009
Transactions
6
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Roche Diagnostics Corporation | 6 | $8,008.71 |
By nature of payment
Hospital affiliations
Frequently asked questions
What is Dr. Jon Ritter's medical specialty?
Dr. Jon Ritter practices Anatomic Pathology & Clinical Pathology Physician in Saint Louis, MO.
Where does Dr. Jon Ritter practice?
Dr. Jon Ritter practices at 1 Barnes Jewish Hospital Plz, Saint Louis, MO 631101003. Office phone: 3143625641.
What is Dr. Jon Ritter's NPI?
Dr. Jon Ritter's National Provider Identifier (NPI) is 1366460784, issued by NPPES.
Does Dr. Jon Ritter accept Medicare assignment?
Yes. Dr. Jon Ritter accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Jon Ritter commonly perform?
Top Medicare-reported procedures in 2023: Pathology examination of tissue using a microscope, intermediate complexity (HCPCS 88305); Microscopic genetic analysis of tumor, manual (HCPCS 88360); Special stained specimen slides to examine tissue, each additional procedure (HCPCS 88341). Source: CMS Medicare Physician & Other Practitioners file.