NPI registry status
Active
2026 NPPES data Physical Medicine & Rehabilitation Physician NPI 1881620888 MD
Verify on CMS → Karl Klamar, MD
Physical Medicine & Rehabilitation Physician in Columbus, 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 15,306 in Physical Medicine & Rehabilitation 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
119
Medicare Part D claims · Physical Medicine & Rehabilitation Physician avg: 781
Generic prescribing
86%
generic claims · 14% brand-name · higher generic rates reduce patient out-of-pocket costs
Source: CMS Medicare Part D Prescriber Public Use File, 2023
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Karl Klamar, MD filed 119 Medicare Part D claims in 2023 as a Physical Medicine & Rehabilitation Physician in Columbus, Ohio, prescribing 86% generic.
- 119
- Part D claims, 2023
- 86%
- generic prescribing
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.
Karl Klamar, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
119 35th percentile higher than 35% of 1,370,886 prescribers
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.
Source CMS Medicare Part D Prescriber Public Use File · 2023
◑
Board-eligible specialty (heuristic, not verified)
Karl Klamar, 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 Karl Klamar, MD?
Quality data not reportedPrimary specialty
Physical Medicine & Rehabilitation Physician
Medicare Part D claims
119 85% vs specialty avg
Specialty distribution in Ohio
How Physical Medicine & Rehabilitation Physician compares to other specialties among Ohio 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 Physical Medicine & Rehabilitation 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).
Karl Klamar, MD appears in the CMS NPPES registry as a Physical Medicine & Rehabilitation Physician provider holding MD credentials at 700 CHILDRENS DR, Columbus, OH, 43205, with a listed phone of (614) 722-5050. NPI 1881620888 was issued on 06/23/2006.
Medicare Part D records for calendar year 2023 show 119 prescription claims written by this provider, covering N/A Medicare beneficiaries and totaling roughly $12K in drug spend, split 14% brand-name and 86% generic by claim count.
Physical Medicine & Rehabilitation Physician is a mid-sized specialty nationwide, with 15,306 enrolled providers across 54 states and an average of 781 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
Provider Details
| NPI | 1881620888 |
|---|---|
| Specialty | Physical Medicine & Rehabilitation Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 06/23/2006 |
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 Karl Klamar, MD. To verify Karl Klamar, 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
Karl Klamar, MD - brand share 14.0%
Physical Medicine & Rehabilitation Physician average
14% brand-name claims vs 86% generic, on 119 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.
119
Total Claims
$12K
Total Drug Cost
N/A
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 128
- Total Day Supply
- 3,749
- Brand vs Generic
- 14% brand / 86% generic
- Brand Drug Cost
- $9K
- Generic Drug Cost
- $3K
Patient Demographics
- Average Patient Age
- 26.6 years
- Avg HCC Risk Score
- 1.44
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Karl Klamar, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Baclofen
Baclofen
57 claims
- Diazepam
Diazepam
37 claims
- Tizanidine Hcl 12
Tizanidine Hcl
12 claims
| Drug | Claims |
|---|---|
| Baclofen | 57 |
| Diazepam | 37 |
| Tizanidine Hcl | 12 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Physical Medicine & Rehabilitation Physician in OH →
All providers in Ohio →
Compare specialties →
Physical Medicine & Rehabilitation Physician Overview
How Karl Klamar, MD fits within the Physical Medicine & Rehabilitation Physician landscape nationally.
15,306
Physical Medicine & Rehabilitation Physician Providers in US
54
States with Physical Medicine & Rehabilitation Physician
781
Avg Claims per Provider
Karl Klamar, MD's 119 claims are below the specialty average of 781.
Nearby Physical Medicine & Rehabilitation Physician Providers in Ohio
Other clinicians with the same primary specialty enrolled in Ohio, drawn from the same CMS NPPES roster as Klamar.
Aaron Abner
Fairborn, OH
Dr. Laura Abounader
APRN-CNP
Parma, OH
Dr. Jaimie Adams
DPT
North Royalton, OH
Dr. Tandra Adams
PT
Gahanna, OH
Dr. Richard Glenn Aguilera
MD
Cleveland, OH
Compare Physical Medicine & Rehabilitation 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 Physical Medicine & Rehabilitation 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.
Healthcare Guides
Learn more about finding, verifying, and understanding healthcare providers.
How to Find a Doctor
Step-by-step guide to choosing a provider
Verify Credentials
Check NPI, board certification & license status
Medical Specialties Explained
Who treats what and how specialties differ
Understanding Medicare Claims Data
What prescribing data reveals about a provider
In-Network vs Out-of-Network
How insurance networks affect your costs
Telehealth Guide
Virtual care options and coverage in 2026
Explore Ohio
Frequently Asked Questions
What is Karl Klamar, MD's specialty? ▼
Karl Klamar, MD specializes in Physical Medicine & Rehabilitation Physician and practices in Columbus, Ohio. Credentials: MD.
How much does Karl Klamar, MD prescribe under Medicare Part D? ▼
In 2023, Karl Klamar, MD wrote 119 Medicare Part D claims totaling $12K in drug costs for N/A beneficiaries.
Where is Karl Klamar, MD located? ▼
Karl Klamar, MD is located at 700 CHILDRENS DR, Columbus, OH, 43205. Phone: (614) 722-5050.
What is Karl Klamar, MD's NPI number? ▼
Karl Klamar, MD's National Provider Identifier (NPI) is 1881620888, issued on 06/23/2006.
Does Karl Klamar, MD prescribe more brand-name or generic drugs? ▼
Karl Klamar, MD's prescribing is 14% brand-name and 86% generic drugs by claim count, with $9K in brand drug costs.
How many Physical Medicine & Rehabilitation Physician providers are there in the US? ▼
There are 15,306 Physical Medicine & Rehabilitation Physician providers across 54 states in the US. The average Physical Medicine & Rehabilitation Physician provider writes 781 Medicare Part D claims per year.
What drugs does Karl Klamar, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Karl Klamar, MD's most frequently prescribed drugs include Baclofen, Diazepam, Tizanidine Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Karl Klamar, MD accept Medicare? ▼
Karl Klamar, MD appears in CMS Medicare data with 119 Part D claims and N/A Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Karl Klamar, MD's credentials? ▼
Karl Klamar, MD's NPI is 1881620888 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
Compiled from official public sources by the PlainDoctor editorial team.