2026 NPPES data In Vivo & In Vitro Nuclear Medicine Physician NPI 1790886745 MD
Verify on CMS →

CONSTANCE WOJTOWICZ, MD

In Vivo & In Vitro Nuclear Medicine Physician in CHICAGO, Illinois. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.

What the federal data shows

CONSTANCE WOJTOWICZ, MD is a In Vivo & In Vitro Nuclear Medicine Physician in CHICAGO, Illinois, listed in the federal CMS National Provider Identifier registry.

Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) — no proprietary rating or editorial opinion is applied.

Board-eligible specialty (heuristic — not verified)

CONSTANCE WOJTOWICZ, MD practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about CONSTANCE WOJTOWICZ, MD?

Quality data not reported

NPI registry status

Active

Issued 09/25/2006

NPI 1790886745

Primary specialty

In Vivo & In Vitro Nuclear Medicine Physician

Rare

14 US NPIs in this specialty

Specialty distribution in Illinois

How In Vivo & In Vitro Nuclear Medicine Physician compares to other specialties among Illinois providers

Illinois providers

In Vivo & In Vitro Nuclear Medicine Physician share within Illinois

1. In Vivo & In Vitro Nuclear Medicine Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
In Vivo & In Vitro Nuclear Medicine Physician share within Illinois

Specialty board-certification context

Estimated specialty board-certified rate — In Vivo & In Vitro Nuclear Medicine Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
In Vivo & In Vitro Nuclear Medicine Physician ABMS/AOA estimate

Est. board-certified rate (In Vivo & In Vitro Nuclear Medicine Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (In Vivo & In Vitro Nuclear Medicine Physician) — ABMS / AOA estimate

The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.

Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).

CONSTANCE WOJTOWICZ, MD appears in the CMS NPPES registry as a In Vivo & In Vitro Nuclear Medicine Physician provider holding MD credentials at 820 S DAMEN AVE, CHICAGO, IL, 60612, with a listed phone of (312) 569-6435. NPI 1790886745 was issued on 09/25/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what WOJTOWICZ most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D prescribing data is not currently published for this NPI, which typically means the provider either wrote fewer than 11 Part D claims in the most recent reporting year, does not participate in Medicare, or practices in a specialty that rarely prescribes outpatient drugs. Absence of prescribing data is not a quality signal — many In Vivo & In Vitro Nuclear Medicine Physician providers operate outside Part D entirely.

In Vivo & In Vitro Nuclear Medicine Physician is a narrow specialty nationwide, with 14 enrolled providers across 11 states and an average of 45 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

820 S DAMEN AVE
CHICAGO, IL 60612

Provider Details

NPI 1790886745
Specialty In Vivo & In Vitro Nuclear Medicine Physician
Credentials MD
Gender Female
NPI Issued 09/25/2006

License & disciplinary context — Illinois IDFPR 2023 annual report

Aggregate state board data only — NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~42K Illinois medical licensees in 2023 — they are NOT specific to CONSTANCE WOJTOWICZ, MD. To verify CONSTANCE WOJTOWICZ, MD's current license status, search the IDFPR public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

106
Total board actions, Illinois 2023
Across 103 cases
2.52
Actions per 1,000 licensees
Illinois statewide rate
probation
Most common action type
38 cases

IDFPR publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Illinois disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

In Vivo & In Vitro Nuclear Medicine Physician Overview

How CONSTANCE WOJTOWICZ, MD fits within the In Vivo & In Vitro Nuclear Medicine Physician landscape nationally.

14
In Vivo & In Vitro Nuclear Medicine Physician Providers in US
11
States with In Vivo & In Vitro Nuclear Medicine Physician
45
Avg Claims per Provider

Frequently Asked Questions

What is CONSTANCE WOJTOWICZ, MD's specialty?
CONSTANCE WOJTOWICZ, MD specializes in In Vivo & In Vitro Nuclear Medicine Physician and practices in CHICAGO, Illinois. Credentials: MD.
Where is CONSTANCE WOJTOWICZ, MD located?
CONSTANCE WOJTOWICZ, MD is located at 820 S DAMEN AVE, CHICAGO, IL, 60612. Phone: (312) 569-6435.
What is CONSTANCE WOJTOWICZ, MD's NPI number?
CONSTANCE WOJTOWICZ, MD's National Provider Identifier (NPI) is 1790886745, issued on 09/25/2006.
How many In Vivo & In Vitro Nuclear Medicine Physician providers are there in the US?
There are 14 In Vivo & In Vitro Nuclear Medicine Physician providers across 11 states in the US. The average In Vivo & In Vitro Nuclear Medicine Physician provider writes 45 Medicare Part D claims per year.
Does CONSTANCE WOJTOWICZ, MD accept Medicare?
CONSTANCE WOJTOWICZ, MD appears in CMS Medicare data. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify CONSTANCE WOJTOWICZ, MD's credentials?
CONSTANCE WOJTOWICZ, MD's NPI is 1790886745 with credentials MD. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.

Data Sources

Provider Directory
CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
Specialty Classification
NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
Limitations
Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.

See our complete data methodology for details on how we collect and process government data.

Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).

Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology