Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

STEPHEN JEROME GUNTHER MD
NPI 1205942182
Internal Medicine - Cardiovascular Disease in Southfield, MI

Q: What is Stephen Gunther's NPI number?

The NPI number for Stephen Gunther is 1205942182. It was assigned to this individual provider in the NPPES registry on August 22, 2006.

Q: What is Stephen Gunther's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Cardiovascular Disease, with taxonomy code 207RC0000X.

Q: When was this NPI record last updated?

The NPPES record for Stephen Gunther was last updated on August 24, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 58 days 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.

Active since August 22, 2006PECOS Enrolled

26400 W 12 MILE RD, SUITE 120, SOUTHFIELD, MI 48034(248) 304-3200(248) 208-9907 Get Directions Write a Review

NPPES record last updated: August 24, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Aug 24, 2026, Oct 21, 2020 (2 updates tracked since 2020).

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About Stephen Jerome Gunther Md NPPES

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

STEPHEN JEROME GUNTHER MD (NPI 1205942182) is an individual cardiovascular disease provider in Southfield, Michigan, licensed in Michigan (048765) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS, is affiliated with Beaumont Hospital Royal Oak, and is a graduate of Michigan College Of Medicine And Surgery (1984).

NPPES Registry Identity

NPI1205942182

Entity TypeIndividualMale

Primary Taxonomy207RC0000X

Provider Legal NameSTEPHEN JEROME GUNTHERCredential: MD

Location Address26400 W 12 MILE RD, SUITE 120Southfield, MI 48034-1700

Mailing Address26400 W 12 Mile Rd Ste 120Southfield, MI 48034-1771 · (248) 304-3200 · Fax (248) 208-9907

Phone(248) 304-3200

Fax(248) 208-9907

Sole ProprietorYes

Medical School CMSMichigan College Of Medicine And SurgeryGraduated 1984

Enumeration DateAugust 22, 2006

Last NPPES UpdateAugust 24, 20262 updates tracked since enumeration

NPPES CertifiedAugust 24, 2026

✔ NPI 1205942182 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Cardiovascular DiseaseAllopathic & Osteopathic Physicians

Taxonomy Code207RC0000X

License✔ Licensed in MI · 048765

Definition

An internist who specializes in diseases of the heart and blood vessels and manages complex cardiac conditions such as heart attacks and life-threatening, abnormal heartbeat rhythms.

26400 W 12 MILE RD, Southfield, MI 48034

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Other Identifiers 1

Medicaid3490166MI

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Buckeye Health Plan, Ambetter from Meridian, Ambetter Health and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Stephen Jerome Gunther Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID2365586765

PECOS Enrollment IDI20100224000027

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.

Medicare Billing Reassignment

Medicare enrollment records show Stephen Gunther reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Mmg 1 PC

0.4 mi

Nurse Practitioner

28625 NORTHWESTERN HWY, SUITE 213
Southfield, MI 48034

Reassigned Medicare billing, Michigan enrollment
29 clinicians in this Medicare group

NPI 1023037025 (248) 354-9666

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 11

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.

408 services180 patients

Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 93010

A routine electrocardiogram (ECG) with 12 leads is a simple, non-invasive test that records the electrical activity of your heart. It helps in identifying heart conditions by detecting irregularities in your heart rhythms. The results are interpreted and a report is provided.

236 services159 patients

Ultrasound of heart with color-depicted blood flow, rate, direction and valve function 93306

This is a heart ultrasound, also known as an echocardiogram. It uses sound waves to create pictures of your heart, showing how blood flows through it. The color depicts the blood flow's speed and direction. It also checks the heart's valves to ensure they're working properly.

67 services67 patients

Exercise or drug-induced heart stress test with electrocardiogram (ecg) with review by physician 93018

An exercise or drug-induced heart stress test with ECG is a procedure to assess how your heart functions under stress. It can involve exercising or medication to make your heart work harder while an ECG records its activity. A physician reviews the results.

65 services65 patients

Ultrasound of heart with color-depicted blood flow, rate, direction and valve function 93306

36 services36 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232

Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.

33 services18 patients

Exercise or drug-induced heart stress test with electrocardiogram (ecg) with supervision by physician 93016

An exercise or drug-induced heart stress test with ECG involves monitoring your heart's activity while it's under stress, either from exercise or medication. A doctor supervises the entire procedure to ensure safety and accuracy in results. This test helps detect heart problems.

19 services19 patients

Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222

Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.

17 services17 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

16 services15 patients

Exercise or drug-induced heart stress test with electrocardiogram (ecg) with review by physician 93018

14 services14 patients

Heart rhythm review, and interpretation of continous external ekg over more than 48 hours up to 7 days 93244

A heart rhythm review involves monitoring your heart's electrical activity for more than 48 hours up to 7 days. Using a device called an external EKG, doctors can track your heartbeats to detect irregularities and help diagnose heart conditions.

14 services11 patients

Hospital Affiliations CMS Care Compare 2

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

Beaumont Hospital Royal Oak

Acute Care Hospitals · Royal Oak, MI

2/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number230130

Location3601 W Thirteen Mile RdRoyal Oak, MI 48073 · Oakland County

Emergency services Birthing friendly

Beaumont Hospital - Farmington Hills

Acute Care Hospitals · Farmington Hills, MI

2/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number230151

Location28050 Grand River AvenueFarmington Hills, MI 48336 · Oakland County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 48034 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

$134.28 typical visit price

range $58.04 – $177.36

Typical copayment $33.57 (range $14.51 – $44.34)

Most-billed visit code 99204

Established Patient

$72.38 typical visit price

range $18.32 – $143.49

Typical copayment $18.09 (range $4.58 – $35.87)

Most-billed visit code 99213

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

Reported Quality Measures

Preventive Care and Screening: Screening for Depression and Follow-Up Plan

Percentage of patients aged 12 years and older screened for depression on the date of the encounter using an age appropriate standardized depression screening tool AND if positive, a follow-up plan is documented on the date of the positive screen

96%97 patients4/55-star benchmark: 100%

Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

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.

DR. ANTHONY A EMMER D.O.

Psychiatry & Neurology (Neurology)

26400 W 12 MILE RD, STE 170
SOUTHFIELD, MI 48034

Oakland County (248) 208-8787

UNIVERSITY PHYSICIAN GROUP

Eyewear Supplier

26400 W 12 MILE RD, SUITE 60
SOUTHFIELD, MI 48034

Oakland County (248) 594-6702

DR. MARC STUART ARNKOFF M.D.

Urology

26400 W 12 MILE RD, SUITE 70
SOUTHFIELD, MI 48034

Oakland County (248) 569-3009

MARK ALLYN STIFF M.D.

Dermatology (MOHS-Micrographic Surgery)

26400 W 12 MILE RD, SUITE 180
SOUTHFIELD, MI 48034

Oakland County (248) 355-5047

CONRAD GILES MD

Ophthalmology

26400 W 12 MILE RD, STE 60
SOUTHFIELD, MI 48034

Oakland County (248) 594-6702

POLYCLINIC ASSOCIATES PC

Specialist

26400 W 12 MILE RD, STE 38
SOUTHFIELD, MI 48034

Oakland County (248) 663-9846

MMG 1PC

Psychiatry & Neurology (Neurology)

26400 W 12 MILE RD, SUITE 170
SOUTHFIELD, MI 48034

Oakland County (248) 208-8787

BENGT B ARNETZ MD

Preventive Medicine (Occupational Medicine)

26400 W 12 MILE RD, SUITE 111
SOUTHFIELD, MI 48034

Oakland County (248) 359-8073

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 Stephen Gunther's NPI number?

The NPI number for Stephen Gunther is 1205942182. It was assigned to this individual provider in the NPPES registry on August 22, 2006.

Where is Stephen Gunther located?

Stephen Gunther practices at 26400 W 12 Mile Rd Suite 120, Southfield, MI 48034. The listed phone number is (248) 304-3200.

What is Stephen Gunther's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Cardiovascular Disease, with taxonomy code 207RC0000X.

Is Stephen Gunther enrolled in Medicare?

Yes. Stephen Gunther is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Stephen Gunther's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Stephen Gunther reassigns Medicare benefits to Mmg 1 PC (Southfield, MI). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Stephen Gunther's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Stephen Gunther accept?

Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian and Priority Health list Stephen Gunther 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 Stephen Gunther affiliated with any hospitals?

According to CMS data, Stephen Gunther is affiliated with Beaumont Hospital Royal Oak and Beaumont Hospital - Farmington Hills.

When was this NPI record last updated?

The NPPES record for Stephen Gunther was last updated on August 24, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 58 days 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.