NPI registry status
Active
2026 NPPES data Pediatric Cardiology Physician NPI 1174673123
Verify on CMS → Frank Zimmerman
Pediatric Cardiology Physician in Chicago, Illinois.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 2,558 in Pediatric Cardiology Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
55
Medicare Part D claims · 11 beneficiaries · Pediatric Cardiology Physician avg: 77
Industry payments
$114.72
2 payments · CMS Open Payments (Sunshine Act)
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Frank Zimmerman filed 55 Medicare Part D claims in 2023 as a Pediatric Cardiology Physician in Chicago, Illinois.
- 55
- Part D claims, 2023
- Likely
- board-certified (heuristic)
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.
Frank Zimmerman's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
55 0th percentile higher than 0% of 1,370,886 prescribers
Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source CMS Medicare Part D Prescriber Public Use File · 2023
✓
Board certification likely (heuristic, not verified)
Frank Zimmerman practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 2 hospital affiliations - signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Frank Zimmerman?
Quality data not reportedPrimary specialty
Pediatric Cardiology Physician
Medicare Part D claims
55 29% vs specialty avg
Specialty distribution in Illinois
How Pediatric Cardiology Physician compares to other specialties among Illinois providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Pediatric Cardiology Physician. Verify directly:
How MIPS and board certification work
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).
Frank Zimmerman appears in the CMS NPPES registry as a Pediatric Cardiology Physician provider at 5841 S MARYLAND AVE, Chicago, IL, 60637, with a listed phone of (888) 824-0200. NPI 1174673123 was issued on 01/11/2007.
Medicare Part D records for calendar year 2023 show 55 prescription claims written by this provider, covering 11 Medicare beneficiaries and totaling roughly $10K in drug spend.
Pediatric Cardiology Physician is a narrow specialty nationwide, with 2,558 enrolled providers across 51 states and an average of 77 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
Provider Details
| NPI | 1174673123 |
|---|---|
| Specialty | Pediatric Cardiology Physician |
| Gender | Male |
| NPI Issued | 01/11/2007 |
Hospital and facility affiliations
Facilities where Frank Zimmerman bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" - a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.
Advocate Health And Hospitals Corporation
Park Ridge, IL
University OF Chicago
Chicago, IL
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
Industry payments received (2024) - CMS Open Payments transparency data
The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for Frank Zimmerman. Source: openpaymentsdata.cms.gov.
Total received
$115
Largest payer
BIOTRONIK INC.
Most common payment type
Food and Beverage
Industry payments are not necessarily indicators of bias, they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.
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 Frank Zimmerman. To verify Frank Zimmerman'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.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
55
Total Claims
$10K
Total Drug Cost
11
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 92
- Total Day Supply
- 2,638
- Generic Drug Cost
- $1K
Patient Demographics
- Average Patient Age
- 36.9 years
- Avg HCC Risk Score
- 0.84
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
| Drug | Claims |
|---|---|
| Digoxin | 13 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Pediatric Cardiology Physician Overview
How Frank Zimmerman fits within the Pediatric Cardiology Physician landscape nationally.
2,558
Pediatric Cardiology Physician Providers in US
51
States with Pediatric Cardiology Physician
77
Avg Claims per Provider
Frank Zimmerman's 55 claims are below the specialty average of 77.
Nearby Pediatric Cardiology Physician Providers in Illinois
Other clinicians with the same primary specialty enrolled in Illinois, drawn from the same CMS NPPES roster as Zimmerman.
Dr. Brojendra Agarwala
M.D.
Chicago, IL
Dr. William Albers
MD
Peoria, IL
Dr. Stephen Bash
MD
Peoria, IL
Dr. Sanmit Basu
MD
Chicago, IL
Dr. Stuart Berger
MD
Chicago, IL
Compare Pediatric Cardiology Physician nationally: see state-by-state distribution →
Before you book an appointment
Use this federal record as your verification checklist, not as a recommendation.
- Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
- Check the active license and any disciplinary history with the Illinois medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Pediatric Cardiology Physician peer on Medicare volume and prescribing patterns. Compare providers
Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.
Healthcare Guides
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How to Find a Doctor
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Medical Specialties Explained
Who treats what and how specialties differ
Understanding Medicare Claims Data
What prescribing data reveals about a provider
In-Network vs Out-of-Network
How insurance networks affect your costs
Telehealth Guide
Virtual care options and coverage in 2026
Explore Illinois
Frequently Asked Questions
What is Frank Zimmerman's specialty? ▼
Frank Zimmerman specializes in Pediatric Cardiology Physician and practices in Chicago, Illinois.
How much does Frank Zimmerman prescribe under Medicare Part D? ▼
In 2023, Frank Zimmerman wrote 55 Medicare Part D claims totaling $10K in drug costs for 11 beneficiaries.
Where is Frank Zimmerman located? ▼
Frank Zimmerman is located at 5841 S MARYLAND AVE, Chicago, IL, 60637. Phone: (888) 824-0200.
What is Frank Zimmerman's NPI number? ▼
Frank Zimmerman's National Provider Identifier (NPI) is 1174673123, issued on 01/11/2007.
How many Pediatric Cardiology Physician providers are there in the US? ▼
There are 2,558 Pediatric Cardiology Physician providers across 51 states in the US. The average Pediatric Cardiology Physician provider writes 77 Medicare Part D claims per year.
What drugs does Frank Zimmerman prescribe most often? ▼
Based on 2023 Medicare Part D data, Frank Zimmerman's most frequently prescribed drugs include Digoxin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Frank Zimmerman accept Medicare? ▼
Frank Zimmerman appears in CMS Medicare data with 55 Part D claims and 11 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Frank Zimmerman's credentials? ▼
Frank Zimmerman's NPI is 1174673123. 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
View source datasets and methodology notes
- 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.
- Prescribing Data
- CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
- 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
Compiled from official public sources by the PlainDoctor editorial team.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 2026.