Doctor profile · Federal record
Dr. John Ray, MD
Emergency Medicine Physician (CMS: Emergency Medicine) · Emergency Medicine Physician · Summit, WI
- NPI 1790079119
- Accepts Medicare
- 15 yrs in practice
- Licensed in 2 states
- Male
- Group practice
- No sanctions
Practice & contact
Operates at 7 locations .
- Primary practice
-
36500 Aurora Dr
Summit, WI 530664899
(262) 434-1000 - Additional location
-
11430 N Port Washington RD
Mequon, WI 530923414
(262) 518-1900
fax (262) 518-5052 - Additional location
-
1155 N Mayfair RD
Milwaukee, WI 532263462
(414) 955-5990
fax (414) 955-6282 - Additional location
-
4805 S Moorland RD
New Berlin, WI 531517401
(262) 798-7200
fax (262) 798-7271 - Additional location
-
7901 S 6Th St
Oak Creek, WI 531542010
(414) 346-8000
fax (414) 346-8010 - Additional location
-
9200 W Wisconsin Ave
Milwaukee, WI 532263522
(414) 805-6450
fax (414) 805-6464 - Additional location
-
W129N7055 Northfield Dr
Menomonee Falls, WI 530510538
(262) 253-5400
fax (262) 253-3399 - Mailing address
-
Po Box 735044
Chicago, IL 606735044
Show 4 more locations
Credentials & registration
- NPI registered
- June 2011 — 15 yrs on file
- Profile last updated
- January 31, 2024
- Year of graduation
- 2011 — 15 yrs since
- Specialty taxonomy
- 207P00000X — NUCC code
- State licenses (2)
- Wisconsin #63493 · Michigan #4301098791
- Medicaid
- WI #1790079119
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1790079119. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
590
Distinct HCPCS
5
Medicare allowed
$43,055
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
93010 |
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | 257 | 232 | $8 | |
99284 |
Emergency department visit with moderate level of medical decision making | 128 | 125 | $110 | |
99285 |
Emergency department visit with high level of medical decision making | 123 | 119 | $160 | |
99283 |
Emergency department visit with low level of medical decision making | 66 | 65 | $65 | |
99291 |
Critical care, first 30-74 minutes | 16 | 16 | $189 |
In context: peer comparison
Among 7 peers in Summit Emergency Medicine Physician, average services per provider: 93. This provider delivers 6.3× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
79
Patients
78
Total drug cost
$367
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Cephalexin | Generic | 39 | 38 | $218 |
| Ondansetron Odt (Ondansetron) | Brand | 14 | 14 | $69 |
| Oxycodone Hcl | Generic | 14 | 14 | $36 |
| Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) | Brand | 12 | 12 | $43 |
Frequently asked questions
What is Dr. John Ray's medical specialty?
Dr. John Ray practices Emergency Medicine Physician in Summit, WI.
Where does Dr. John Ray practice?
Dr. John Ray practices at 36500 Aurora Dr, Summit, WI 530664899. Office phone: 2624341000.
What is Dr. John Ray's NPI?
Dr. John Ray's National Provider Identifier (NPI) is 1790079119, issued by NPPES.
Does Dr. John Ray accept Medicare assignment?
Yes. Dr. John Ray accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. John Ray commonly perform?
Top Medicare-reported procedures in 2023: Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (HCPCS 93010); Emergency department visit with moderate level of medical decision making (HCPCS 99284); Emergency department visit with high level of medical decision making (HCPCS 99285). Source: CMS Medicare Physician & Other Practitioners file.