2026 NPPES data Family Medicine Physician NPI 1932166345 MD
Verify on CMS →

Bonnie McNamara, MD

Family Medicine Physician in Lima, Ohio.

This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 147,760 in Family Medicine Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.

Federal data, no proprietary rating. We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
5K
Medicare Part D claims · 373 beneficiaries · Family Medicine Physician avg: 3K
Generic prescribing
88%
generic claims · 11% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

Bonnie McNamara, MD filed 5,473 Medicare Part D claims in 2023 as a Family Medicine Physician in Lima, Ohio, prescribing 88% generic.

5K
Part D claims, 2023
88%
generic prescribing
≥94th
pct by Part D claim volume (lower-bound band)

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.

Bonnie McNamara, MD's Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023, across all CMS prescribers nationally

5,473 ≥ 94th percentile 94% of 1,370,886 prescribers are in lower value bands

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). Below this entry. 600–800: 56,224 prescribers (4%). Below this entry. 800–1,000: 40,919 prescribers (3%). Below this entry. 1,000–1,200: 31,827 prescribers (2%). Below this entry. 1,200–1,400: 26,224 prescribers (2%). Below this entry. 1,400–1,600: 21,710 prescribers (2%). Below this entry. 1,600–1,800: 19,072 prescribers (1%). Below this entry. 1,800–2,000: 16,451 prescribers (1%). Below this entry. 2K+: 213,991 prescribers (16%). This entry sits in this band. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

Each bar is a band; taller bars hold more prescribers. 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.

The percentile is a conservative 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.

Source CMS Medicare Part D Prescriber Public Use File · 2023

Board-eligible specialty (heuristic, not verified)

Bonnie McNamara, MD 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).

What does the federal data show about Bonnie McNamara, MD?

Quality data not reported

NPI registry status

Active

Issued 04/28/2006

NPI 1932166345

Primary specialty

Family Medicine Physician

High-volume

147,760 US NPIs in this specialty

Medicare Part D claims

5,473 60% vs specialty avg

2023 prescription claims

Specialty avg: 3,418

Specialty distribution in Ohio

How Family Medicine Physician compares to other specialties among Ohio providers

Ohio providers
Case Manager/Care Coordinator10.9%Student in an Organized Heal…4.7%Licensed Practical Nurse4%Addiction (Substance Use Dis…3.5%Registered Nurse3.4%Pharmacist3.4%Family Medicine Physician1.7%
Largest specialties in Ohio (% of in-state providers)

Board certification

Not published by CMS

CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Family Medicine Physician. Verify directly:

How MIPS and board certification work

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).

Bonnie McNamara, MD appears in the CMS NPPES registry as a Family Medicine Physician provider holding MD credentials at 1005 BELLEFONTAINE AVE STE 300, Lima, OH, 45804, with a listed phone of (419) 334-3869. NPI 1932166345 was issued on 04/28/2006.

Medicare Part D records for calendar year 2023 show 5,473 prescription claims written by this provider, covering 373 Medicare beneficiaries and totaling roughly $426K in drug spend, split 11% brand-name and 88% generic by claim count, with an opioid prescribing rate of 1.0%.

Family Medicine Physician is a high-volume specialty nationwide, with 147,760 enrolled providers across 56 states and an average of 3,418 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

1005 BELLEFONTAINE AVE STE 300
Lima, OH 45804

Provider Details

NPI 1932166345
Specialty Family Medicine Physician
Credentials MD
Gender Female
NPI Issued 04/28/2006

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 Bonnie McNamara, MD. To verify Bonnie McNamara, MD'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 · Typical

Bonnie McNamara, MD - brand share 11.0%
Family Medicine Physician average

11% brand-name claims vs 88% generic, on 5,473 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.

5,473
Total Claims
$426K
Total Drug Cost
373
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
12,084
Total Day Supply
348,979
Brand vs Generic
11% brand / 88% generic
Brand Drug Cost
$331K
Generic Drug Cost
$94K
Opioid Claims
56 (1.0% rate)
Antibiotic Claims
115

Patient Demographics

Average Patient Age
73.4 years
Avg HCC Risk Score
1.18
Gender Split
71% female / 29% male
Age Distribution
<65: 39, 65-74: 183, 75-84: 94, 85+: 57

Top Prescribed Drugs (Medicare Part D)

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

What Bonnie McNamara, 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
Levothyroxine Sodium
397
Atorvastatin Calcium
274
Losartan Potassium
218
Amlodipine Besylate
212
Rosuvastatin Calcium
184
Lisinopril
155
Pantoprazole Sodium
140
Omeprazole
134
Pravastatin Sodium
123
Hydrochlorothiazide
120

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

Family Medicine Physician Overview

How Bonnie McNamara, MD fits within the Family Medicine Physician landscape nationally.

147,760
Family Medicine Physician Providers in US
56
States with Family Medicine Physician
3,418
Avg Claims per Provider

Bonnie McNamara, MD's 5,473 claims are above the specialty average of 3,418.

Nearby Family Medicine Physician Providers in Ohio

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

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

Before you book an appointment

Use this federal record as your verification checklist, not as a recommendation.

  • Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
  • Check the active license and any disciplinary history with the Ohio medical board, federal registration is not a license check. Credential verification guide
  • Weigh a second option: compare this provider with a nearby Family Medicine Physician peer on Medicare volume and prescribing patterns. Compare providers

Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.

Frequently Asked Questions

What is Bonnie McNamara, MD's specialty?
Bonnie McNamara, MD specializes in Family Medicine Physician and practices in Lima, Ohio. Credentials: MD.
How much does Bonnie McNamara, MD prescribe under Medicare Part D?
In 2023, Bonnie McNamara, MD wrote 5,473 Medicare Part D claims totaling $426K in drug costs for 373 beneficiaries.
Where is Bonnie McNamara, MD located?
Bonnie McNamara, MD is located at 1005 BELLEFONTAINE AVE STE 300, Lima, OH, 45804. Phone: (419) 334-3869.
What is Bonnie McNamara, MD's NPI number?
Bonnie McNamara, MD's National Provider Identifier (NPI) is 1932166345, issued on 04/28/2006.
Does Bonnie McNamara, MD prescribe more brand-name or generic drugs?
Bonnie McNamara, MD's prescribing is 11% brand-name and 88% generic drugs by claim count, with $331K in brand drug costs.
Does Bonnie McNamara, MD prescribe opioids?
Yes, Bonnie McNamara, MD had 56 opioid claims in 2023 with an opioid prescribing rate of 1.0%.
How many Family Medicine Physician providers are there in the US?
There are 147,760 Family Medicine Physician providers across 56 states in the US. The average Family Medicine Physician provider writes 3,418 Medicare Part D claims per year.
What drugs does Bonnie McNamara, MD prescribe most often?
Based on 2023 Medicare Part D data, Bonnie McNamara, MD's most frequently prescribed drugs include Levothyroxine Sodium, Atorvastatin Calcium, Losartan Potassium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Bonnie McNamara, MD accept Medicare?
Bonnie McNamara, MD appears in CMS Medicare data with 5,473 Part D claims and 373 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Bonnie McNamara, MD's credentials?
Bonnie McNamara, MD's NPI is 1932166345 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

View source datasets and methodology notes
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

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 2026.