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DR. JOHN MIHAILIDIS M.D.
NPI 1194036533
Internal Medicine - Endocrinology, Diabetes & Metabolism in Neenah, WI

Active since June 30, 2010PECOS EnrolledAccepts Medicare Assignment

NPPES record last updated: August 1, 2024. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Aug 1, 2024, Apr 3, 2023, Jan 24, 2022 and 1 more (4 updates tracked since 2017).

About Dr. John Mihailidis M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. JOHN MIHAILIDIS M.D. (NPI 1194036533) is an individual endocrinology, diabetes & metabolism provider in Neenah, Wisconsin, licensed in Wisconsin (84089) and active in the NPI registry since June 2010. He is enrolled in Medicare PECOS, is affiliated with Thedacare Regional Med Ctr - Neenah, and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1194036533
Entity TypeIndividualMale
Primary Taxonomy207RE0101X
Provider Legal NameDR. JOHN MIHAILIDISCredential: M.D.
Location Address130 2ND STNeenah, WI 54956-2883
Mailing Address3 Neenah CtrNeenah, WI 54956-3070 · (920) 358-1223
Phone(920) 358-1223
Sole ProprietorNo
Medical School CMSOtherGraduated 2010
Enumeration DateJune 30, 2010
Last NPPES UpdateAugust 1, 20244 updates tracked since enumeration
NPPES CertifiedAugust 1, 2024
✔ NPI 1194036533 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Endocrinology, Diabetes & MetabolismAllopathic & Osteopathic Physicians
Taxonomy Code207RE0101X
Licenses✔ Licensed in WI · 84089✔ Licensed in NE · 30557✔ Licensed in NY · 311791
Definition
An internist who concentrates on disorders of the internal (endocrine) glands such as the thyroid and adrenal glands. This specialist also deals with disorders such as diabetes, metabolic and nutritional disorders, obesity, pituitary diseases and menstrual and sexual problems.
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X
130 2ND ST, Neenah, WI 54956
Open in Google Maps ↗

Secondary Practice Locations 2

Location 1325 Essjay RdWilliamsville, NY 14221-8243 · Phone (716) 656-4468 · Fax (716) 250-5941
Location 23900 N Buffalo StOrchard Park, NY 14127 · Phone (716) 656-4468

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include CareSource (Common Ground Healthcare).Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. John Mihailidis M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID3173843901
PECOS Enrollment IDI20240815004603
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 10

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
140 services117 patients
Blood test, thyroid stimulating hormone (tsh) 84443
A TSH blood test measures the level of thyroid stimulating hormone in your body. This hormone is produced by the pituitary gland and regulates how your thyroid works. It's a simple procedure where a small amount of blood is drawn from your arm for analysis.
39 services27 patients
Thyroxine (thyroid chemical), free 84439
The Thyroxine (thyroid chemical), free test is a blood test that measures the level of free T4 in your body. T4 is a hormone produced by your thyroid gland and is essential for growth and metabolism. If your T4 levels are too high or too low, it could indicate a thyroid disorder.
37 services24 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
37 services37 patients
Blood test, comprehensive group of blood chemicals 80053
A comprehensive group of blood chemicals test, also known as a comprehensive metabolic panel, is a blood test that measures your sugar level, electrolyte and fluid balance, kidney function, and liver function. This helps to check your body's overall health.
32 services30 patients
Hemoglobin a1c level 83036
Hemoglobin A1c (HbA1c) is a test that measures your average blood sugar level over the past 2-3 months. It's used to monitor how well diabetes is being controlled. High levels may indicate that your diabetes treatment plan needs adjustment.
29 services27 patients

Hospital Affiliations CMS Care Compare 5

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Thedacare Regional Med Ctr - Neenah

Acute Care Hospitals · Neenah, WI
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number520045
Location130 2nd StNeenah, WI 54956 · Winnebago County
Emergency services Birthing friendly

Thedacare Regional Medical Center - Appleton Inc

Acute Care Hospitals · Appleton, WI
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number520160
Location1818 N Meade StAppleton, WI 54911 · Outagamie County
Emergency services Birthing friendly

Thedacare Medical Center-Waupaca

Critical Access Hospitals · Waupaca, WI
OwnershipVoluntary non-profit - Private
CMS Certification Number521334
Location800 Riverside DriveWaupaca, WI 54981 · Waupaca County
Emergency services Birthing friendly

Thedacare Medical Center - Shawano

Critical Access Hospitals · Shawano, WI
OwnershipVoluntary non-profit - Private
CMS Certification Number521346
Location100 County Rd BShawano, WI 54166 · Shawano County
Emergency services Birthing friendly

Berlin Memorial Hospital

Critical Access Hospitals · Berlin, WI
OwnershipVoluntary non-profit - Private
CMS Certification Number521355
Location225 Memorial DriveBerlin, WI 54923 · Green Lake County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 54956 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$123.69 typical visit price
range $53.90 – $163.24
Typical copayment $30.92 (range $13.47 – $40.81)
Most-billed visit code 99204
Established Patient
$95.41 typical visit price
range $17.40 – $133.76
Typical copayment $23.85 (range $4.35 – $33.44)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Referred Medical Equipment & Supplies CMS DME claims 7

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Supplies for maintenance of insulin infusion catheter, per week A4224
DME-Other DME · category DE017N
9 suppliers61 claims778 services$18.87 avg. paid by Medicare
Supplies for external insulin infusion pump, syringe type cartridge, sterile, each A4225
DME-Other DME · category DE017N
9 suppliers58 claims1,885 services$2.36 avg. paid by Medicare
Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253
DME-Other DME · category DE017N
16 suppliers87 claims256 services$6.03 avg. paid by Medicare
Lancets, per box of 100 A4259
DME-Medical/Surgical Supplies · category DA000N
6 suppliers17 claims43 services$1.14 avg. paid by Medicare
External ambulatory infusion pump, insulin E0784
DME-Other DME · category DE017N
3 suppliers22 claims22 services$284.99 avg. paid by Medicare
Insulin for administration through dme (i.e., insulin pump) per 50 units J1817
Treatment-Injections and Infusions (nononcologic) · category RI000N
5 suppliers16 claims1,480 services$7.15 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

JENNIFER MARIE KETTERHAGEN PHARMD
Pharmacist
130 2ND ST
NEENAH, WI 54956
Winnebago County (920) 454-5080
JAMES P MANDERLE MD
Nurse Anesthetist, Certified Registered
130 2ND ST, STE. A107
NEENAH, WI 54956
Winnebago County (920) 729-3332
ALLISON A HOELZEL OT
Occupational Therapist
130 2ND ST
NEENAH, WI 54956
Winnebago County (920) 729-2616
ELIZABETH BONSON PT
Physical Therapist
130 2ND ST
NEENAH, WI 54956
Winnebago County (920) 729-2155
SARAH M MARTIN
Physical Therapist
130 2ND ST
NEENAH, WI 54956
Winnebago County (920) 454-2973
JUSTIN EISBERNER
Nurse Anesthetist, Certified Registered
130 2ND ST
NEENAH, WI 54956
Winnebago County (920) 729-3100
DR. ERIK VERHAGE MD
Pediatrics (Neonatal-Perinatal Medicine)
130 2ND ST
NEENAH, WI 54956
Winnebago County (920) 969-7900
ALYSSA ANN ROTZENBERG
Physical Therapist
130 2ND ST
NEENAH, WI 54956
Winnebago County (920) 729-3100

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is John Mihailidis's NPI number?

The NPI number for John Mihailidis is 1194036533. It was assigned to this individual provider in the NPPES registry on June 30, 2010.

Where is John Mihailidis located?

John Mihailidis practices at 130 2nd St, Neenah, WI 54956. The listed phone number is (920) 358-1223.

What is John Mihailidis's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Endocrinology, Diabetes & Metabolism, with taxonomy code 207RE0101X.

Is John Mihailidis enrolled in Medicare?

Yes. John Mihailidis is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does John Mihailidis accept?

Health plans from CareSource (Common Ground Healthcare) list John Mihailidis as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is John Mihailidis affiliated with any hospitals?

According to CMS data, John Mihailidis is affiliated with Thedacare Regional Med Ctr - Neenah, Thedacare Regional Medical Center - Appleton Inc, Thedacare Medical Center-Waupaca, Thedacare Medical Center - Shawano and Berlin Memorial Hospital.

When was this NPI record last updated?

The NPPES record for John Mihailidis was last updated on August 1, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.