2026 NPPES data Addiction Medicine (Family Medicine) Physician NPI 1033104518 M.D.
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GEORGE CALLOWAY, M.D.

Addiction Medicine (Family Medicine) Physician in WESTERVILLE, Ohio. 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
640
Medicare Part D claims · 154 beneficiaries · Addiction Medicine (Family Medicine) Physician avg: 1K
Generic prescribing
67%
generic claims · 33% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$18.49
1 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: GEORGE CALLOWAY, M.D. is a Addiction Medicine (Family Medicine) Physician ([object Object]) practicing in WESTERVILLE, Ohio with a Medicare Part D prescribing footprint of 640 claims across 154 beneficiaries — 33% brand-name prescribing . Industry payments of $18.49 across 1 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: GEORGE CALLOWAY, M.D. filed 640 Medicare Part D claims in 2023 across WESTERVILLE, Ohio. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board-eligible specialty (heuristic — not verified)

GEORGE CALLOWAY, M.D. practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).

GEORGE CALLOWAY, M.D. at a glance

Quality data not reported

NPI registry status

Active

Issued 09/12/2005

NPI 1033104518

Primary specialty

Addiction Medicine (Family Medicine) Physician

Niche

763 US NPIs in this specialty

Medicare Part D claims

640 44% vs specialty avg

2023 prescription claims

Specialty avg: 1,134

Specialty distribution in Ohio

How Addiction Medicine (Family Medicine) Physician compares to other specialties among Ohio providers

Ohio providers

Addiction Medicine (Family Medicine) Physician share within Ohio

1. Addiction Medicine (Family Medicine) Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Addiction Medicine (Family Medicine) Physician share within Ohio

Specialty board-certification context

Estimated specialty board-certified rate — Addiction Medicine (Family Medicine) Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Addiction Medicine (Family Medicine) Physician ABMS/AOA estimate

Est. board-certified rate (Addiction Medicine (Family Medicine) Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Addiction Medicine (Family Medicine) 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).

GEORGE CALLOWAY, M.D. is a Addiction Medicine (Family Medicine) Physician provider practicing in WESTERVILLE, Ohio, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1033104518. 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.

GEORGE CALLOWAY, M.D. appears in the CMS NPPES registry as a Addiction Medicine (Family Medicine) Physician provider holding M.D. credentials at 495 COOPER RD, WESTERVILLE, OH, 43081, with a listed phone of (614) 891-7878. NPI 1033104518 was issued on 09/12/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what CALLOWAY 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 640 prescription claims written by this provider, covering 154 Medicare beneficiaries and totaling roughly $83K in drug spend, split 33% brand-name and 67% 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.

Addiction Medicine (Family Medicine) Physician is a narrow specialty nationwide, with 763 enrolled providers across 48 states and an average of 1,134 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

495 COOPER RD
WESTERVILLE, OH 43081

Provider Details

NPI 1033104518
Specialty Addiction Medicine (Family Medicine) Physician
Credentials M.D.
Gender Male
NPI Issued 09/12/2005

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 GEORGE CALLOWAY, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$18

Largest payer

Alkermes, 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 — Ohio OMB 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 ~48K Ohio medical licensees in 2023 — they are NOT specific to GEORGE CALLOWAY, M.D.. To verify GEORGE CALLOWAY, M.D.'s current license status, search the OMB public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

158
Total board actions, Ohio 2023
Across 154 cases
3.29
Actions per 1,000 licensees
Ohio statewide rate
probation
Most common action type
56 cases

OMB 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 Ohio disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Brand vs generic prescribing mix · Above average

GEORGE CALLOWAY, M.D. — brand share 33.0%
Specialty average (est.)

33% brand-name claims vs 67% generic, on 640 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.

640
Total Claims
$83K
Total Drug Cost
154
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,130
Total Day Supply
31,981
Brand vs Generic
33% brand / 67% generic
Brand Drug Cost
$63K
Generic Drug Cost
$20K

Patient Demographics

Average Patient Age
72.8 years
Avg HCC Risk Score
1.77
Gender Split
64% female / 36% male
Age Distribution
<65: 24, 65-74: 52, 75-84: 61, 85+: 17

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Latanoprost
230
Brimonidine Tartrate
60
Timolol Maleate
52
Olopatadine Hcl
35
Tobramycin-Dexamethasone
Tobramycin/Dexamethasone
33
Travoprost
31
Buprenorphine Hcl
21
Ciprofloxacin Hcl
20
Lumigan
Bimatoprost
20
Prednisolone Acetate
18

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

Addiction Medicine (Family Medicine) Physician Overview

How GEORGE CALLOWAY, M.D. fits within the Addiction Medicine (Family Medicine) Physician landscape nationally.

763
Addiction Medicine (Family Medicine) Physician Providers in US
48
States with Addiction Medicine (Family Medicine) Physician
1,134
Avg Claims per Provider

GEORGE CALLOWAY, M.D.'s 640 claims are below the specialty average of 1,134.

Nearby Addiction Medicine (Family Medicine) Physician Providers in Ohio

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

Compare Addiction Medicine (Family Medicine) Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is GEORGE CALLOWAY, M.D.'s specialty?
GEORGE CALLOWAY, M.D. specializes in Addiction Medicine (Family Medicine) Physician and practices in WESTERVILLE, Ohio. Credentials: M.D..
How much does GEORGE CALLOWAY, M.D. prescribe under Medicare Part D?
In 2023, GEORGE CALLOWAY, M.D. wrote 640 Medicare Part D claims totaling $83K in drug costs for 154 beneficiaries.
Where is GEORGE CALLOWAY, M.D. located?
GEORGE CALLOWAY, M.D. is located at 495 COOPER RD, WESTERVILLE, OH, 43081. Phone: (614) 891-7878.
What is GEORGE CALLOWAY, M.D.'s NPI number?
GEORGE CALLOWAY, M.D.'s National Provider Identifier (NPI) is 1033104518, issued on 09/12/2005.
Does GEORGE CALLOWAY, M.D. prescribe more brand-name or generic drugs?
GEORGE CALLOWAY, M.D.'s prescribing is 33% brand-name and 67% generic drugs by claim count, with $63K in brand drug costs.
How many Addiction Medicine (Family Medicine) Physician providers are there in the US?
There are 763 Addiction Medicine (Family Medicine) Physician providers across 48 states in the US. The average Addiction Medicine (Family Medicine) Physician provider writes 1,134 Medicare Part D claims per year.
What drugs does GEORGE CALLOWAY, M.D. prescribe most often?
Based on 2023 Medicare Part D data, GEORGE CALLOWAY, M.D.'s most frequently prescribed drugs include Latanoprost, Brimonidine Tartrate, Timolol Maleate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does GEORGE CALLOWAY, M.D. accept Medicare?
GEORGE CALLOWAY, M.D. appears in CMS Medicare data with 640 Part D claims and 154 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify GEORGE CALLOWAY, M.D.'s credentials?
GEORGE CALLOWAY, M.D.'s NPI is 1033104518 with credentials M.D.. 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