What is Corina Gerczak's NPI number?

Corina Gerczak's National Provider Identifier (NPI) is 1821050105, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Corina Gerczak's specialty?

Corina Gerczak is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).

Where is Corina Gerczak located?

Corina Gerczak's practice location on file with NPPES is 1800 Lawrence Dr, De Pere, WI 54115.

What is Corina Gerczak's phone number?

The practice phone number listed in the NPPES registry for Corina Gerczak is (920) 983-3220.

Does Corina Gerczak accept Medicare?

Corina Gerczak is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.

Is Corina Gerczak's NPI active?

Yes — Corina Gerczak's NPI (1821050105) is active in the NPPES registry as of the last update on 2023-09-20.

IndividualActiveAccepts Medicare

Corina Gerczak, PA

NPI 1821050105 · Physician Assistant · De Pere, WI

Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)

Corina Gerczak, PA is a Physician Assistant provider in De Pere, WI (NPI 1821050105).

Provider details

NPI number: 1821050105
Entity type: Individual
Primary specialty: Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
Credential: PA
Sex: Female
Sole proprietor: No
License: 1960 (WI)

Specialties & taxonomies

Physician AssistantPrimary363A00000XLicense 1960 (WI)
Physician Assistants & Advanced Practice Nursing Providers

Profile Score

Established profile(74/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure28% of score
20 yrs in NPPES registry
Profile completeness28% of score
100% of core fields populated
Practice footprint17% of score
8 documented practice locations
Medicare service volume (vs. specialty peers)28% of score
67 Medicare services, 2024 (ranked within specialty)

Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.

What this provider does (Medicare)

Based on Medicare fee-for-service claims, 2024; not all care is captured.

Service (HCPCS)	Medicare services	Typical Medicare-allowed (2024)
Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214	36	$103
Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439	17	$103
Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213	14	$73

Typical Medicare-allowed amounts for these services range $73–$103 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.

What this provider prescribes (Medicare Part D)

Top drugs by Medicare Part D claim volume, 2024 · 47 distinct drugs on file.

Drug	Part D claims (2024)	Beneficiaries
Atorvastatin Calcium	162	46
Lisinopril	124	33
Losartan Potassium	75	22
Famotidine	68	26
Simvastatin	66	16
Amlodipine Besylate	57	18
Metformin Hcl	48	13

Practice location

1800 Lawrence Dr

De Pere, WI 54115

Phone: (920) 983-3220

Fax: (920) 983-3226

Street-level locationGet directions

More WI providers

Mailing address

Po Box 22487

Green Bay, WI 54305-2487

Additional practice locations (7)

831 Parker Ave
Algoma, WI 54201-1808
Phone: (920) 487-3676
Fax: (920) 487-3084
401 W Mill St
Bonduel, WI 54107-9246
Phone: (715) 758-2167
Fax: (715) 758-6701
2430 E Mason St
Green Bay, WI 54302-3759
Phone: (920) 406-9865
Fax: (920) 406-9867
2318 Lineville Rd
Green Bay, WI 54313-8836
Phone: (920) 434-3127
Fax: (920) 434-3136
301 Bay Park Sq
Green Bay, WI 54304-5104
Phone: (920) 592-9475
Fax: (920) 592-9479
3415 Custer St Ste D
Manitowoc, WI 54220-4328
Phone: (920) 652-9310
Fax: (920) 652-9316
555 Quality Ct
Wrightstown, WI 54180-9006
Phone: (920) 532-6320
Fax: (920) 532-6269

Enumerated: 2006-04-04
Last updated: 2023-09-20
Certified: 2023-09-20

Frequently asked questions

What is Corina Gerczak's NPI number?: Corina Gerczak's National Provider Identifier (NPI) is 1821050105, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Corina Gerczak's specialty?: Corina Gerczak is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
Where is Corina Gerczak located?: Corina Gerczak's practice location on file with NPPES is 1800 Lawrence Dr, De Pere, WI 54115.
What is Corina Gerczak's phone number?: The practice phone number listed in the NPPES registry for Corina Gerczak is (920) 983-3220.
Does Corina Gerczak accept Medicare?: Corina Gerczak is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
Is Corina Gerczak's NPI active?: Yes — Corina Gerczak's NPI (1821050105) is active in the NPPES registry as of the last update on 2023-09-20.

Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.