2026 NPPES data Specialist NPI 1548284730 MD
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GRANT CHAVIN, MD

Specialist in HOMEWOOD, 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
3K
Medicare Part D claims · 875 beneficiaries · Specialist avg: 1K
MIPS score
75/100
▼ 8 pts below national avg 83.1 · [object Object]
Industry payments
$1.9K
83 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

GRANT CHAVIN, MD reported a CMS MIPS final score of 75/100 — below the 83.1 national average — and filed 3,077 Medicare Part D claims in 2023.

75/100
MIPS score · -8 vs avg
3K
Part D claims, 2023
$1.9K
industry payments (Sunshine Act)

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.

GRANT CHAVIN, MD's MIPS score vs every scored U.S. clinician

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

75 15th percentile higher than 15% of 477,587 scored providers

0–10: 8,684 scored providers (2%). Below this entry. 10–20: 3,008 scored providers (1%). Below this entry. 20–30: 3,069 scored providers (1%). Below this entry. 30–40: 2,746 scored providers (1%). Below this entry. 40–50: 2,928 scored providers (1%). Below this entry. 50–60: 5,882 scored providers (1%). Below this entry. 60–70: 13,906 scored providers (3%). Below this entry. 70–80: 118,074 scored providers (25%). This entry sits in this band. 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

What does the federal data show about GRANT CHAVIN, MD?

Below national average

NPI registry status

Active

Issued 07/27/2006

NPI 1548284730

Primary specialty

Specialist

High-volume

69,658 US NPIs in this specialty

Medicare Part D claims

3,077 109% vs specialty avg

2023 prescription claims

Specialty avg: 1,474

MIPS final score

75/100 8.099999999999994% pts

Above neutral band

vs 83.1 national avg

Specialty distribution in Illinois

How Specialist compares to other specialties among Illinois providers

Illinois providers

Specialist share within Illinois

1. Specialist42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Specialist share within Illinois

Medicare quality performance — MIPS

GRANT CHAVIN, MD's 2023 MIPS final score plotted against the Specialist national average

Below national average
MIPS Final Score
75/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Specialist) — 75/100 vs national avg 83.1

0%100%National avg83%75%
MIPS final score (Specialist) — 75/100 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).

GRANT CHAVIN, MD is a Specialist provider practicing in HOMEWOOD, Illinois, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1548284730. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

GRANT CHAVIN, MD appears in the CMS NPPES registry as a Specialist provider holding MD credentials at 17901 GOVERNORS HWY, HOMEWOOD, IL, 60430, with a listed phone of (708) 888-8287. NPI 1548284730 was issued on 07/27/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what CHAVIN 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 3,077 prescription claims written by this provider, covering 875 Medicare beneficiaries and totaling roughly $559K in drug spend, with an opioid prescribing rate of 0.4%. 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 75/100 for the 2023 performance year, compared with the national average of 83.1.

Specialist is a high-volume specialty nationwide, with 69,658 enrolled providers across 55 states and an average of 1,474 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

17901 GOVERNORS HWY
HOMEWOOD, IL 60430

Provider Details

NPI 1548284730
Specialty Specialist
Credentials MD
Gender Male
NPI Issued 07/27/2006

CMS Quality Score (MIPS)

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

75
Final Score
Avg: 83.1

Reporting: Group practice

Hospital and facility affiliations

Facilities where GRANT CHAVIN, MD 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.

UROPARTNERS LLC
HARVEY, 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 GRANT CHAVIN, MD. Source: openpaymentsdata.cms.gov.

Total received

$1.9K

Largest payer

Sumitomo Pharma America, 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 GRANT CHAVIN, MD. To verify GRANT CHAVIN, 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.

Medicare Part D Prescribing Data

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

3,077
Total Claims
$559K
Total Drug Cost
875
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
6,662
Total Day Supply
186,316
Generic Drug Cost
$89K
Opioid Claims
13 (0.4% rate)
Antibiotic Claims
332

Patient Demographics

Average Patient Age
74.2 years
Avg HCC Risk Score
1.46
Gender Split
21% female / 79% male
Age Distribution
<65: 59, 65-74: 420, 75-84: 303, 85+: 93

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Tamsulosin Hcl
841
Finasteride
685
Myrbetriq
Mirabegron
271
Oxybutynin Chloride Er
Oxybutynin Chloride
128
Levofloxacin
112
Trospium Chloride
98
Sulfamethoxazole-Trimethoprim
Sulfamethoxazole/Trimethoprim
71
Gemtesa
Vibegron
62
Sildenafil Citrate
62
Diclofenac Sodium
60

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

Specialist Overview

How GRANT CHAVIN, MD fits within the Specialist landscape nationally.

69,658
Specialist Providers in US
55
States with Specialist
1,474
Avg Claims per Provider

GRANT CHAVIN, MD's 3,077 claims are above the specialty average of 1,474.

Nearby Specialist Providers in Illinois

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

Compare Specialist nationally: see state-by-state distribution →

Frequently Asked Questions

What is GRANT CHAVIN, MD's specialty?
GRANT CHAVIN, MD specializes in Specialist and practices in HOMEWOOD, Illinois. Credentials: MD.
How much does GRANT CHAVIN, MD prescribe under Medicare Part D?
In 2023, GRANT CHAVIN, MD wrote 3,077 Medicare Part D claims totaling $559K in drug costs for 875 beneficiaries.
What is GRANT CHAVIN, MD's Medicare quality score?
GRANT CHAVIN, MD has a CMS MIPS Final Score of 75/100. The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is GRANT CHAVIN, MD located?
GRANT CHAVIN, MD is located at 17901 GOVERNORS HWY, HOMEWOOD, IL, 60430. Phone: (708) 888-8287.
What is GRANT CHAVIN, MD's NPI number?
GRANT CHAVIN, MD's National Provider Identifier (NPI) is 1548284730, issued on 07/27/2006.
Does GRANT CHAVIN, MD prescribe opioids?
Yes, GRANT CHAVIN, MD had 13 opioid claims in 2023 with an opioid prescribing rate of 0.4%.
How many Specialist providers are there in the US?
There are 69,658 Specialist providers across 55 states in the US. The average Specialist provider writes 1,474 Medicare Part D claims per year.
What drugs does GRANT CHAVIN, MD prescribe most often?
Based on 2023 Medicare Part D data, GRANT CHAVIN, MD's most frequently prescribed drugs include Tamsulosin Hcl, Finasteride, Myrbetriq. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does GRANT CHAVIN, MD accept Medicare?
GRANT CHAVIN, MD appears in CMS Medicare data with 3,077 Part D claims and 875 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify GRANT CHAVIN, MD's credentials?
GRANT CHAVIN, MD's NPI is 1548284730 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