2026 NPPES data Prosthodontics NPI 1780672121
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GRANT SIMS

Prosthodontics 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.
Prescribing volume
24
Medicare Part D claims · 17 beneficiaries · Prosthodontics avg: 85
What the federal data reveals: GRANT SIMS is a Prosthodontics ([object Object]) practicing in CHICAGO, Illinois with a Medicare Part D prescribing footprint of 24 claims across 17 beneficiaries .

What stands out: GRANT SIMS filed 24 Medicare Part D claims in 2023 across CHICAGO, Illinois. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

GRANT SIMS at a glance

Quality data not reported

NPI registry status

Active

Issued 10/10/2005

NPI 1780672121

Primary specialty

Prosthodontics

Niche

3,510 US NPIs in this specialty

Medicare Part D claims

24 72% vs specialty avg

2023 prescription claims

Specialty avg: 85

Specialty distribution in Illinois

How Prosthodontics compares to other specialties among Illinois providers

Illinois providers

Prosthodontics share within Illinois

1. Prosthodontics42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Prosthodontics share within Illinois

Specialty board-certification context

Estimated specialty board-certified rate — Prosthodontics (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Prosthodontics ABMS/AOA estimate

Est. board-certified rate (Prosthodontics) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Prosthodontics) — 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).

GRANT SIMS is a Prosthodontics provider practicing in CHICAGO, Illinois, according to the CMS National Plan and Provider Enumeration System (NPPES). NPI: 1780672121. 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 SIMS appears in the CMS NPPES registry as a Prosthodontics provider at 5333 N CLARK ST, CHICAGO, IL, 60640, with a listed phone of (773) 728-5333. NPI 1780672121 was issued on 10/10/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what SIMS 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 24 prescription claims written by this provider, covering 17 Medicare beneficiaries and totaling roughly $99 in drug spend, with an opioid prescribing rate of 70.8%. 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.

Prosthodontics is a narrow specialty nationwide, with 3,510 enrolled providers across 51 states and an average of 85 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

5333 N CLARK ST
CHICAGO, IL 60640

Provider Details

NPI 1780672121
Specialty Prosthodontics
Gender Male
NPI Issued 10/10/2005

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 SIMS. To verify GRANT SIMS'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.

24
Total Claims
$99
Total Drug Cost
17
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
24
Total Day Supply
126
Brand Drug Cost
$0
Generic Drug Cost
$99
Opioid Claims
17 (70.8% rate)

Patient Demographics

Average Patient Age
67.6 years
Avg HCC Risk Score
1.61

Prosthodontics Overview

How GRANT SIMS fits within the Prosthodontics landscape nationally.

3,510
Prosthodontics Providers in US
51
States with Prosthodontics
85
Avg Claims per Provider

GRANT SIMS's 24 claims are below the specialty average of 85.

Nearby Prosthodontics Providers in Illinois

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

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

Frequently Asked Questions

What is GRANT SIMS's specialty?
GRANT SIMS specializes in Prosthodontics and practices in CHICAGO, Illinois.
How much does GRANT SIMS prescribe under Medicare Part D?
In 2023, GRANT SIMS wrote 24 Medicare Part D claims totaling $99 in drug costs for 17 beneficiaries.
Where is GRANT SIMS located?
GRANT SIMS is located at 5333 N CLARK ST, CHICAGO, IL, 60640. Phone: (773) 728-5333.
What is GRANT SIMS's NPI number?
GRANT SIMS's National Provider Identifier (NPI) is 1780672121, issued on 10/10/2005.
Does GRANT SIMS prescribe opioids?
Yes, GRANT SIMS had 17 opioid claims in 2023 with an opioid prescribing rate of 70.8%.
How many Prosthodontics providers are there in the US?
There are 3,510 Prosthodontics providers across 51 states in the US. The average Prosthodontics provider writes 85 Medicare Part D claims per year.
Does GRANT SIMS accept Medicare?
GRANT SIMS appears in CMS Medicare data with 24 Part D claims and 17 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify GRANT SIMS's credentials?
GRANT SIMS's NPI is 1780672121. 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.
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