Doctor profile · Federal record
Dr. John Mihailidis, M.D.
Endocrinology, Diabetes & Metabolism Physician (CMS: Endocrinology) · Endocrinology, Diabetes & Metabolism Physician · Endocrinology, Diabetes & Metabolism Physician · Student in an Organized Health Care Education/Training Program · Neenah, WI
- NPI 1194036533
- Accepts Medicare
- 16 yrs in practice
- Licensed in 3 states
- Male
- Group practice
- No sanctions
Practice & contact
Operates at 3 locations .
- Primary practice
-
130 2Nd St
Neenah, WI 549562883
(920) 358-1223 - Additional location
-
325 Essjay RD
Williamsville, NY 142218243
(716) 656-4468
fax (716) 250-5941 - Additional location
-
3900 N Buffalo St
Orchard Park, NY 14127
(716) 656-4468 - Mailing address
-
3 Neenah Ctr
Neenah, WI 549563070
Credentials & registration
- NPI registered
- June 2010 — 16 yrs on file
- Profile last updated
- August 1, 2024
- Year of graduation
- 2010 — 16 yrs since
- Specialty taxonomy
- 207RE0101X — NUCC code
- State licenses (3)
- Wisconsin #84089 · Nebraska #30557 · New York #311791
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1194036533. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
753
Distinct HCPCS
10
Medicare allowed
$51,282
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 296 | 184 | $123 | |
80053 |
Blood test, comprehensive group of blood chemicals | 66 | 46 | $10 | |
84443 |
Blood test, thyroid stimulating hormone (tsh) | 60 | 39 | $16 | |
83036 |
Hemoglobin a1c level | 55 | 35 | $10 | |
84439 |
Thyroxine (thyroid chemical), free | 54 | 35 | $9 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 49 | 43 | $88 | |
80061 |
Blood test, lipids (cholesterol and triglycerides) | 41 | 29 | $13 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 39 | 39 | $162 | |
82043 |
Urine microalbumin (protein) level | 36 | 29 | $6 | |
82570 |
Creatinine level to test for kidney function or muscle injury | 36 | 29 | $5 |
In context: peer comparison
Among 2 peers in this city , average services per provider: 125. This provider delivers 6.0× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
1,347
Patients
521
Total drug cost
$1,052,629
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Levothyroxine Sodium | Generic | 209 | 90 | $5,328 |
| Ozempic (Semaglutide) | Brand | 178 | 53 | $323,349 |
| Synthroid (Levothyroxine Sodium) | Brand | 174 | 63 | $17,414 |
| Trulicity (Dulaglutide) | Brand | 116 | 40 | $191,229 |
| Mounjaro (Tirzepatide) | Brand | 83 | 34 | $122,401 |
| Lantus Solostar (Insulin Glargine,hum.Rec.Anlog) | Brand | 73 | 29 | $45,108 |
| Humalog Kwikpen U-100 (Insulin Lispro) | Brand | 70 | 24 | $72,930 |
| Methimazole | Generic | 65 | 27 | $1,216 |
| Jardiance (Empagliflozin) | Brand | 58 | 28 | $85,521 |
| Metformin Hcl Er (Metformin Hcl) | Brand | 57 | 30 | $1,476 |
Hospital affiliations
Frequently asked questions
What is Dr. John Mihailidis's medical specialty?
Dr. John Mihailidis practices Endocrinology, Diabetes & Metabolism Physician in Neenah, WI.
Where does Dr. John Mihailidis practice?
Dr. John Mihailidis practices at 130 2Nd St, Neenah, WI 549562883. Office phone: 9203581223.
What is Dr. John Mihailidis's NPI?
Dr. John Mihailidis's National Provider Identifier (NPI) is 1194036533, issued by NPPES.
Does Dr. John Mihailidis accept Medicare assignment?
Yes. Dr. John Mihailidis accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. John Mihailidis commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Blood test, comprehensive group of blood chemicals (HCPCS 80053); Blood test, thyroid stimulating hormone (tsh) (HCPCS 84443). Source: CMS Medicare Physician & Other Practitioners file.