Doctor profile · Federal record
Dr. John Mays, MD
Internal Medicine Physician (CMS: Internal Medicine) · Saint Louis, MO
- NPI 1083108062
- Accepts Medicare
- 8 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
969 N Mason RD Ste 110
Saint Louis, MO 631416338
(314) 996-3434 - Additional location
-
1 Barnes Jewish Hospital Plz
Saint Louis, MO 631101003
(314) 362-5000
Credentials & registration
- NPI registered
- June 2018 — 8 yrs on file
- Profile last updated
- March 22, 2023
- Year of graduation
- 2018 — 8 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- Missouri #2020001817
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1083108062. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,365
Distinct HCPCS
10
Medicare allowed
$129,624
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 337 | 230 | $126 | |
G0439 |
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 313 | 313 | $128 | |
36415 |
Insertion of needle into vein for collection of blood sample | 226 | 187 | $8 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 118 | 96 | $88 | |
G0008 |
Administration of influenza virus vaccine | 88 | 87 | $30 | |
90662 |
Influenza vaccine split virus, preservative free | 82 | 81 | $72 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 42 | 36 | $173 | |
90677 |
Pneumococcal conjugate vaccine, 20 valent (pcv20), for intramuscular use | 31 | 31 | $282 | |
G0009 |
Administration of pneumococcal vaccine | 31 | 31 | $30 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 29 | 29 | $163 |
In context: peer comparison
Among 216 peers in this city , average services per provider: 171. This provider delivers 8.0× the peer median.Open Payments
Industry payments received
All-time total
$1,491
Transactions
76
Manufacturers
15
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| ABBVIE INC. | 10 | $217.34 | |
| GlaxoSmithKline, LLC. | 13 | $204.85 | |
| PFIZER INC. | 15 | $171.82 | |
| Novartis Pharmaceuticals Corporation | 5 | $101.45 | |
| Amgen Inc. | 5 | $99.41 | |
| Novo Nordisk Inc | 5 | $94.61 | |
| Medtronic, Inc. | 1 | $80.37 | |
| AstraZeneca Pharmaceuticals LP | 4 | $76.76 | |
| Lilly USA, LLC | 3 | $67.02 | |
| Boehringer Ingelheim Pharmaceuticals, Inc. | 3 | $63.02 | |
| AIMMUNE THERAPEUTICS, INC. | 4 | $57.63 | |
| Abbott Laboratories | 3 | $48.91 | |
| E.R. Squibb & Sons, L.L.C. | 2 | $33.02 | |
| Salix Pharmaceuticals, a division of Bausch Health US, LLC | 2 | $29.85 | |
| Lundbeck LLC | 1 | $21.90 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
4,845
Patients
1,446
Total drug cost
$60,017
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 635 | 181 | $7,012 |
| Levothyroxine Sodium | Generic | 508 | 148 | $7,606 |
| Rosuvastatin Calcium | Generic | 474 | 152 | $7,006 |
| Amlodipine Besylate | Generic | 439 | 137 | $3,267 |
| Losartan Potassium | Generic | 368 | 109 | $5,297 |
| Lisinopril | Generic | 365 | 103 | $2,536 |
| Hydrochlorothiazide | Generic | 306 | 89 | $1,438 |
| Omeprazole | Generic | 264 | 89 | $4,496 |
| Gabapentin | Generic | 235 | 71 | $5,472 |
| Alprazolam | Generic | 228 | 64 | $977 |
Hospital affiliations
Frequently asked questions
What is Dr. John Mays's medical specialty?
Dr. John Mays practices Internal Medicine Physician in Saint Louis, MO.
Where does Dr. John Mays practice?
Dr. John Mays practices at 969 N Mason RD Ste 110, Saint Louis, MO 631416338. Office phone: 3149963434.
What is Dr. John Mays's NPI?
Dr. John Mays's National Provider Identifier (NPI) is 1083108062, issued by NPPES.
Does Dr. John Mays accept Medicare assignment?
Yes. Dr. John Mays accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. John Mays 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); Insertion of needle into vein for collection of blood sample (HCPCS 36415). Source: CMS Medicare Physician & Other Practitioners file.