2026 NPPES data Neurology Physician NPI 1548243819 MD
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REGINA BIELKUS, MD

Neurology Physician in ROCKFORD, 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.
Prescribing volume
4K
Medicare Part D claims · 647 beneficiaries · Neurology Physician avg: 1K
Generic prescribing
97%
generic claims · 3% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
0/100
▼ 83 pts below national avg 83.1 · [object Object]

What the federal data shows

REGINA BIELKUS, MD reported a CMS MIPS final score of 0/100 — below the 83.1 national average — and filed 3,624 Medicare Part D claims in 2023.

0/100
MIPS score · -83 vs avg
4K
Part D claims, 2023
97%
generic prescribing
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.

REGINA BIELKUS, MD's MIPS score vs every scored U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023 — the federal quality measure

0 0th percentile higher than 0% of 477,587 scored providers

0–10: 8,684 scored providers (2%). This entry sits in this band. 10–20: 3,008 scored providers (1%). Above this entry. 20–30: 3,069 scored providers (1%). Above this entry. 30–40: 2,746 scored providers (1%). Above this entry. 40–50: 2,928 scored providers (1%). Above this entry. 50–60: 5,882 scored providers (1%). Above this entry. 60–70: 13,906 scored providers (3%). Above this entry. 70–80: 118,074 scored providers (25%). Above this entry. 80–90: 129,887 scored providers (27%). Above this entry. 90–100: 189,403 scored providers (40%). Above this entry. This provider 0 100 every MIPS-scored clinician, bucketed by value

Each bar is a band; taller bars hold more scored providers. 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 Merit-based Incentive Payment System (MIPS) · 2023

Board certification likely (heuristic — not verified)

REGINA BIELKUS, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting — 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 REGINA BIELKUS, MD?

Below national average

NPI registry status

Active

Issued 11/21/2005

NPI 1548243819

Primary specialty

Neurology Physician

Mid-sized

19,866 US NPIs in this specialty

Medicare Part D claims

3,624 177% vs specialty avg

2023 prescription claims

Specialty avg: 1,309

MIPS final score

0/100 83.1% pts

Penalty band band

vs 83.1 national avg

Specialty distribution in Illinois

How Neurology Physician compares to other specialties among Illinois providers

Illinois providers

Neurology Physician share within Illinois

1. Neurology Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Neurology Physician share within Illinois

Medicare quality performance — MIPS

REGINA BIELKUS, MD's 2023 MIPS final score plotted against the Neurology Physician national average

Below national average
MIPS Final Score
0/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Neurology Physician) — 0/100 vs national avg 83.1

0%100%National avg83%0%
MIPS final score (Neurology Physician) — 0/100 vs national avg 83.1

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).

REGINA BIELKUS, MD appears in the CMS NPPES registry as a Neurology Physician provider holding MD credentials at 1055 FEATHERSTONE RD, ROCKFORD, IL, 61107, with a listed phone of (815) 231-2502. NPI 1548243819 was issued on 11/21/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what BIELKUS 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 records for calendar year 2023 show 3,624 prescription claims written by this provider, covering 647 Medicare beneficiaries and totaling roughly $560K in drug spend, split 3% brand-name and 97% generic by claim count. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 0/100 for the 2023 performance year (Quality 0), compared with the national average of 83.1.

Neurology Physician is a mid-sized specialty nationwide, with 19,866 enrolled providers across 54 states and an average of 1,309 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

1055 FEATHERSTONE RD
ROCKFORD, IL 61107

Provider Details

NPI 1548243819
Specialty Neurology Physician
Credentials MD
Gender Female
NPI Issued 11/21/2005

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

0
Final Score
Avg: 83.1
0
Quality

Reporting: Individual

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 REGINA BIELKUS, MD. To verify REGINA BIELKUS, 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.

Brand vs generic prescribing mix · Generic-heavy

REGINA BIELKUS, MD — brand share 3.0%
Specialty average (est.)

3% brand-name claims vs 97% generic, on 3,624 2023 Medicare Part D claims.

The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

3,624
Total Claims
$560K
Total Drug Cost
647
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
9,050
Total Day Supply
269,565
Brand vs Generic
3% brand / 97% generic
Brand Drug Cost
$312K
Generic Drug Cost
$244K

Patient Demographics

Average Patient Age
73.6 years
Avg HCC Risk Score
1.41
Gender Split
61% female / 39% male
Age Distribution
<65: 82, 65-74: 244, 75-84: 245, 85+: 76

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

What REGINA BIELKUS, MD prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Gabapentin
517
Memantine Hcl
374
Carbidopa-Levodopa
Carbidopa/Levodopa
351
Donepezil Hcl
349
Levetiracetam
344
Topiramate
310
Nortriptyline Hcl
141
Carbamazepine Er
Carbamazepine
96
Primidone
82
Baclofen
77

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Neurology Physician Overview

How REGINA BIELKUS, MD fits within the Neurology Physician landscape nationally.

19,866
Neurology Physician Providers in US
54
States with Neurology Physician
1,309
Avg Claims per Provider

REGINA BIELKUS, MD's 3,624 claims are above the specialty average of 1,309.

Nearby Neurology Physician Providers in Illinois

Other clinicians with the same primary specialty enrolled in Illinois, drawn from the same CMS NPPES roster as BIELKUS.

Compare Neurology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is REGINA BIELKUS, MD's specialty?
REGINA BIELKUS, MD specializes in Neurology Physician and practices in ROCKFORD, Illinois. Credentials: MD.
How much does REGINA BIELKUS, MD prescribe under Medicare Part D?
In 2023, REGINA BIELKUS, MD wrote 3,624 Medicare Part D claims totaling $560K in drug costs for 647 beneficiaries.
What is REGINA BIELKUS, MD's Medicare quality score?
REGINA BIELKUS, MD has a CMS MIPS Final Score of 0/100 (Quality: 0). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is REGINA BIELKUS, MD located?
REGINA BIELKUS, MD is located at 1055 FEATHERSTONE RD, ROCKFORD, IL, 61107. Phone: (815) 231-2502.
What is REGINA BIELKUS, MD's NPI number?
REGINA BIELKUS, MD's National Provider Identifier (NPI) is 1548243819, issued on 11/21/2005.
Does REGINA BIELKUS, MD prescribe more brand-name or generic drugs?
REGINA BIELKUS, MD's prescribing is 3% brand-name and 97% generic drugs by claim count, with $312K in brand drug costs.
How many Neurology Physician providers are there in the US?
There are 19,866 Neurology Physician providers across 54 states in the US. The average Neurology Physician provider writes 1,309 Medicare Part D claims per year.
What drugs does REGINA BIELKUS, MD prescribe most often?
Based on 2023 Medicare Part D data, REGINA BIELKUS, MD's most frequently prescribed drugs include Gabapentin, Memantine Hcl, Carbidopa-Levodopa. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does REGINA BIELKUS, MD accept Medicare?
REGINA BIELKUS, MD appears in CMS Medicare data with 3,624 Part D claims and 647 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify REGINA BIELKUS, MD's credentials?
REGINA BIELKUS, MD's NPI is 1548243819 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.
Prescribing Data
CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
Quality Performance
CMS Merit-based Incentive Payment System (MIPS) — 2023 performance year.
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