ALEXANDER A STEMER MD
NPI 1861451429
Internal Medicine - Infectious Disease in Munster, IN

Active since March 22, 2006PECOS EnrolledAccepts Medicare Assignment
10110 DON S POWERS DRIVE, STE 101D, MUNSTER, IN 46321(219) 922-3002(219) 922-3003 Get Directions Write a Review

NPPES record last updated: April 14, 2021. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Apr 14, 2021, Oct 10, 2016 (2 updates tracked since 2016).

About Alexander A Stemer Md NPPES

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

ALEXANDER A STEMER MD (NPI 1861451429) is an individual infectious disease provider in Munster, Indiana, licensed in Indiana (01025591) and active in the NPI registry since March 2006. He is enrolled in Medicare PECOS and is a graduate of Other (1973).

NPPES Registry Identity

NPI1861451429
Entity TypeIndividualMale
Primary Taxonomy207RI0200X
Provider Legal NameALEXANDER A STEMERCredential: MD
Location Address10110 DON S POWERS DRIVE, STE 101DMunster, IN 46321-4158
Mailing Address10110 Don S Powers Dr, Suite 101dMunster, IN 46321-4158 · (219) 301-7264 · Fax (219) 595-0889
Fax(219) 922-3003
Sole ProprietorNo
Medical School CMSOtherGraduated 1973
Enumeration DateMarch 22, 2006
Last NPPES UpdateApril 14, 20212 updates tracked since enumeration
NPPES CertifiedApril 14, 2021
NPI 1861451429 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyInternal Medicine · Infectious DiseaseAllopathic & Osteopathic Physicians
Taxonomy Code207RI0200X
License Licensed in IN · 01025591
Definition
An internist who deals with infectious diseases of all types and in all organ systems. Conditions requiring selective use of antibiotics call for this special skill. This physician often diagnoses and treats AIDS patients and patients with fevers which have not been explained. Infectious disease specialists may also have expertise in preventive medicine and travel medicine.
10110 DON S POWERS DRIVE, Munster, IN 46321

Accepted 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

Alexander A Stemer Md 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 ID2567357809
PECOS Enrollment IDI20100311000974
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 4

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.

Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes 99310
A follow-up nursing facility visit is a routine check-up that typically lasts about 35 minutes. During this visit, your health status is evaluated, any changes in your condition are noted, and necessary adjustments to your care plan are made. It's an essential part of maintaining your health.
325 services294 patients
Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes 99309
A follow-up nursing facility visit per day is a daily check-in by a healthcare professional. This 25-minute visit typically involves monitoring your health progress, addressing any concerns, and adjusting treatment plans as necessary. It's a vital part of ensuring your ongoing wellbeing.
161 services145 patients
Initial nursing facility care with high level of medical decision making, per day, if using time, 50 minutes or more 99306
An initial nursing facility visit is your first meeting with your healthcare team at a nursing facility. Lasting typically 45 minutes, this appointment involves a comprehensive health assessment and the creation of your personalized care plan. It's a crucial step to ensure your health and well-being.
43 services43 patients
Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and G0180
This is a service where a doctor or authorized practitioner certifies that you require Medicare-covered home health services. They will communicate with the home health agency and review reports on your health status to ensure you receive appropriate care. This does not involve an in-person visit.
26 services25 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 46321 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
$122.49 typical visit price
range $53.07 – $161.76
Typical copayment $30.62 (range $13.26 – $40.44)
Most-billed visit code 99204
Established Patient
$94.22 typical visit price
range $16.93 – $132.22
Typical copayment $23.55 (range $4.23 – $33.05)
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 28

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

Walker, folding, wheeled, adjustable or fixed height E0143
DME-Other DME · category DE000N
6 suppliers38 claims38 services$41.83 avg. paid by Medicare
Seat attachment, walker E0156
DME-Other DME · category DE000N
4 suppliers14 claims14 services$14.53 avg. paid by Medicare
Commode chair, mobile or stationary, with fixed arms E0163
DME-Other DME · category DE000N
5 suppliers28 claims28 services$47.83 avg. paid by Medicare
Commode chair, mobile or stationary, with detachable arms E0165
DME-Other DME · category DE000N
2 suppliers21 claims21 services$5.87 avg. paid by Medicare
Dry pressure mattress E0184
DME-Other DME · category DE000N
1 supplier11 claims11 services$13.02 avg. paid by Medicare
Gel or gel-like pressure pad for mattress, standard mattress length and width E0185
DME-Other DME · category DE000N
2 suppliers15 claims15 services$151.43 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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 Alexander Stemer's NPI number?

The NPI number for Alexander Stemer is 1861451429. It was assigned to this individual provider in the NPPES registry on March 22, 2006.

Where is Alexander Stemer located?

Alexander Stemer practices at 10110 Don S Powers Drive Ste 101D, Munster, IN 46321. The listed phone number is (219) 922-3002.

What is Alexander Stemer's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Infectious Disease, with taxonomy code 207RI0200X.

Is Alexander Stemer enrolled in Medicare?

Yes. Alexander Stemer 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 Alexander Stemer accept?

Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian and CareSource list Alexander Stemer 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.

When was this NPI record last updated?

The NPPES record for Alexander Stemer was last updated on April 14, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.