2026 NPPES data Ophthalmology Physician NPI 1821017674 D.O
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THOMAS CLARINGBOLD, D.O

Ophthalmology Physician in CLARE, Michigan. 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
1K
Medicare Part D claims · 365 beneficiaries · Ophthalmology Physician avg: 1K
Generic prescribing
73%
generic claims · 27% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$149.13
6 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: THOMAS CLARINGBOLD, D.O is a Ophthalmology Physician ([object Object]) practicing in CLARE, Michigan with a Medicare Part D prescribing footprint of 1K claims across 365 beneficiaries — 27% brand-name prescribing . Industry payments of $149.13 across 6 transactions are disclosed under CMS Open Payments (Sunshine Act).

What the federal data shows

THOMAS CLARINGBOLD, D.O filed 1,266 Medicare Part D claims in 2023 as a Ophthalmology Physician in CLARE, Michigan, prescribing 73% generic.

1K
Part D claims, 2023
73%
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.

Board certification likely (heuristic — not verified)

THOMAS CLARINGBOLD, D.O practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

THOMAS CLARINGBOLD, D.O at a glance

Quality data not reported

NPI registry status

Active

Issued 07/19/2006

NPI 1821017674

Primary specialty

Ophthalmology Physician

Mid-sized

22,090 US NPIs in this specialty

Medicare Part D claims

1,266 11% vs specialty avg

2023 prescription claims

Specialty avg: 1,420

Specialty distribution in Michigan

How Ophthalmology Physician compares to other specialties among Michigan providers

Michigan providers

Ophthalmology Physician share within Michigan

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

Specialty board-certification context

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

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

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

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

THOMAS CLARINGBOLD, D.O is a Ophthalmology Physician provider practicing in CLARE, Michigan, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: D.O. NPI: 1821017674. 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.

THOMAS CLARINGBOLD, D.O appears in the CMS NPPES registry as a Ophthalmology Physician provider holding D.O credentials at 1509 N MCEWAN ST, CLARE, MI, 48617, with a listed phone of (989) 802-8811. NPI 1821017674 was issued on 07/19/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what CLARINGBOLD 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 1,266 prescription claims written by this provider, covering 365 Medicare beneficiaries and totaling roughly $79K in drug spend, split 27% brand-name and 73% 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.

Ophthalmology Physician is a mid-sized specialty nationwide, with 22,090 enrolled providers across 56 states and an average of 1,420 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

1509 N MCEWAN ST
CLARE, MI 48617

Provider Details

NPI 1821017674
Specialty Ophthalmology Physician
Credentials D.O
Gender Male
NPI Issued 07/19/2006

Hospital and facility affiliations

Facilities where THOMAS CLARINGBOLD, D.O 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.

MYMICHIGAN MEDICAL CENTER CLARE
★★☆☆☆ 2/5
CLARE, MI
Acute Care Hospitals
CMS CCN: 230180

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 THOMAS CLARINGBOLD, D.O. Source: openpaymentsdata.cms.gov.

Total received

$149

Largest payer

Johnson & Johnson Surgical Vision, 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 — Michigan MI-BOM 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 ~41K Michigan medical licensees in 2023 — they are NOT specific to THOMAS CLARINGBOLD, D.O. To verify THOMAS CLARINGBOLD, D.O's current license status, search the MI-BOM public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

123
Total board actions, Michigan 2023
Across 120 cases
3.00
Actions per 1,000 licensees
Michigan statewide rate
probation
Most common action type
44 cases

MI-BOM 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 Michigan disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Brand vs generic prescribing mix · Above average

THOMAS CLARINGBOLD, D.O — brand share 27.0%
Specialty average (est.)

27% brand-name claims vs 73% generic, on 1,266 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.

1,266
Total Claims
$79K
Total Drug Cost
365
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
2,052
Total Day Supply
56,473
Brand vs Generic
27% brand / 73% generic
Brand Drug Cost
$35K
Generic Drug Cost
$44K
Antibiotic Claims
53

Patient Demographics

Average Patient Age
74.9 years
Avg HCC Risk Score
1.23
Gender Split
56% female / 44% male
Age Distribution
<65: 23, 65-74: 160, 75-84: 143, 85+: 39

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Moxifloxacin
Moxifloxacin Hcl
240
Latanoprost
239
Prednisolone Acetate
179
Difluprednate
132
Timolol Maleate
81
Ketorolac Tromethamine
62
Brimonidine Tartrate
47
Dorzolamide-Timolol
Dorzolamide Hcl/Timolol Maleat
40
Doxycycline Hyclate
37
Ciprofloxacin Hcl
33

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

Ophthalmology Physician Overview

How THOMAS CLARINGBOLD, D.O fits within the Ophthalmology Physician landscape nationally.

22,090
Ophthalmology Physician Providers in US
56
States with Ophthalmology Physician
1,420
Avg Claims per Provider

THOMAS CLARINGBOLD, D.O's 1,266 claims are below the specialty average of 1,420.

Nearby Ophthalmology Physician Providers in Michigan

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

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

Frequently Asked Questions

What is THOMAS CLARINGBOLD, D.O's specialty?
THOMAS CLARINGBOLD, D.O specializes in Ophthalmology Physician and practices in CLARE, Michigan. Credentials: D.O.
How much does THOMAS CLARINGBOLD, D.O prescribe under Medicare Part D?
In 2023, THOMAS CLARINGBOLD, D.O wrote 1,266 Medicare Part D claims totaling $79K in drug costs for 365 beneficiaries.
Where is THOMAS CLARINGBOLD, D.O located?
THOMAS CLARINGBOLD, D.O is located at 1509 N MCEWAN ST, CLARE, MI, 48617. Phone: (989) 802-8811.
What is THOMAS CLARINGBOLD, D.O's NPI number?
THOMAS CLARINGBOLD, D.O's National Provider Identifier (NPI) is 1821017674, issued on 07/19/2006.
Does THOMAS CLARINGBOLD, D.O prescribe more brand-name or generic drugs?
THOMAS CLARINGBOLD, D.O's prescribing is 27% brand-name and 73% generic drugs by claim count, with $35K in brand drug costs.
How many Ophthalmology Physician providers are there in the US?
There are 22,090 Ophthalmology Physician providers across 56 states in the US. The average Ophthalmology Physician provider writes 1,420 Medicare Part D claims per year.
What drugs does THOMAS CLARINGBOLD, D.O prescribe most often?
Based on 2023 Medicare Part D data, THOMAS CLARINGBOLD, D.O's most frequently prescribed drugs include Moxifloxacin, Latanoprost, Prednisolone Acetate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does THOMAS CLARINGBOLD, D.O accept Medicare?
THOMAS CLARINGBOLD, D.O appears in CMS Medicare data with 1,266 Part D claims and 365 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify THOMAS CLARINGBOLD, D.O's credentials?
THOMAS CLARINGBOLD, D.O's NPI is 1821017674 with credentials D.O. 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