DR. DEMETRIOS SPYRIDON THEODOROPOULOS M.D.
NPI 1326299488
Allergy & Immunology - Clinical & Laboratory Immunology in Onalaska, WI

Active since October 08, 2008PECOS EnrolledAccepts Medicare Assignment
2727 MIDWEST DRIVE, ONALASKA, WI 54650(608) 782-2027(608) 782-6172 Get Directions Write a Review

NPPES record last updated: December 14, 2015. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dr. Demetrios Spyridon Theodoropoulos M.d. NPPES

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

DR. DEMETRIOS SPYRIDON THEODOROPOULOS M.D. (NPI 1326299488) is an individual clinical & laboratory immunology provider in Onalaska, Wisconsin, licensed in Wisconsin (44060-20) and active in the NPI registry since October 2008. He is enrolled in Medicare PECOS and is a graduate of Other (1987).

NPPES Registry Identity

NPI1326299488
Entity TypeIndividualMale
Primary Taxonomy207KI0005X
Provider Legal NameDR. DEMETRIOS SPYRIDON THEODOROPOULOSCredential: M.D.
Location Address2727 MIDWEST DRIVEOnalaska, WI 54650
Mailing Address2727 Midwest DriveOnalaska, WI 54650 · (608) 782-2027 · Fax (608) 782-6172
Fax(608) 782-6172
Sole ProprietorNo
Medical School CMSOtherGraduated 1987
Enumeration DateOctober 8, 2008
Last NPPES UpdateDecember 14, 2015
NPI 1326299488 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyAllergy & Immunology · Clinical & Laboratory ImmunologyAllopathic & Osteopathic Physicians
Taxonomy Code207KI0005X
License Licensed in WI · 44060-20
Definition
An allergy and immunology physician who specializes in clinical and laboratory immunology disease management. Source: National Uniform Claim Committee, 2022 Additional Resources: A certification was, but is no longer, issued by the American Board of Allergy and Immunology.
2727 MIDWEST DRIVE, Onalaska, WI 54650

Other Identifiers 1

Medicare UPIN17911WI

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

Dr. Demetrios Spyridon Theodoropoulos 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 ID9032143649
PECOS Enrollment IDI20050922001172
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 12

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.

Test for allergy using allergenic extract injected into skin 95024
An allergy skin test involves injecting a small amount of allergenic extract into your skin. This test helps determine if you're allergic to specific substances. If allergic, a small red bump appears at the test site. It's safe and quick.
2,025 services154 patients
Measurement of antibody (ige) to allergic substance, crude allergen extract, each 86003
This procedure measures the level of IgE antibodies in your blood that react to a specific allergen. It's done using a crude allergen extract. The test helps determine your sensitivity to certain allergens, aiding in diagnosis and treatment of allergies.
208 services32 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.
97 services93 patients
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.
58 services55 patients
Ige (immune system protein) level 82785
The IgE level test measures the amount of immunoglobulin E, a type of antibody, in your blood. It's used to help diagnose allergies or asthma. A high IgE level can indicate an allergic reaction or immune system disorder. It's a simple blood test.
33 services33 patients
Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212
This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.
25 services25 patients

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 Demetrios Theodoropoulos's NPI number?

The NPI number for Demetrios Theodoropoulos is 1326299488. It was assigned to this individual provider in the NPPES registry on October 8, 2008.

Where is Demetrios Theodoropoulos located?

Demetrios Theodoropoulos practices at 2727 Midwest Drive, Onalaska, WI 54650. The listed phone number is (608) 782-2027.

What is Demetrios Theodoropoulos's specialty?

The primary specialty registered for this NPI is Allergy & Immunology, specializing in Clinical & Laboratory Immunology, with taxonomy code 207KI0005X.

Is Demetrios Theodoropoulos enrolled in Medicare?

Yes. Demetrios Theodoropoulos 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 Demetrios Theodoropoulos accept?

Health plans from Anthem Blue Cross and Blue Shield and HealthPartners list Demetrios Theodoropoulos 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 Demetrios Theodoropoulos was last updated on December 14, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.