2026 NPPES data Clinical Genetics (M.D.) Physician NPI 1871599050 MD
Verify on CMS →

Dennis Bartholomew, MD

Clinical Genetics (M.D.) 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 825 in Clinical Genetics (M.D.) 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
12
Medicare Part D claims · Clinical Genetics (M.D.) Physician avg: 261
Generic prescribing
0%
generic claims · 100% brand-name · higher generic rates reduce patient out-of-pocket costs
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Dennis Bartholomew, MD filed 12 Medicare Part D claims in 2023 as a Clinical Genetics (M.D.) Physician in Columbus, Ohio, prescribing 0% generic.

12
Part D claims, 2023
0%
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.

Dennis Bartholomew, MD's Medicare Part D volume vs every U.S. prescriber

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

12 0th percentile higher than 0% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). This entry sits in this band. 200–400: 182,923 prescribers (13%). Above this entry. 400–600: 90,619 prescribers (7%). Above this entry. 600–800: 56,224 prescribers (4%). Above this entry. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2K+: 213,991 prescribers (16%). Above this entry. 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.

Source CMS Medicare Part D Prescriber Public Use File · 2023

Board-eligible specialty (heuristic, not verified)

Dennis Bartholomew, 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 Dennis Bartholomew, MD?

Quality data not reported

NPI registry status

Active

Issued 06/22/2005

NPI 1871599050

Primary specialty

Clinical Genetics (M.D.) Physician

Niche

825 US NPIs in this specialty

Medicare Part D claims

12 95% vs specialty avg

2023 prescription claims

Specialty avg: 261

Specialty distribution in Ohio

How Clinical Genetics (M.D.) Physician compares to other specialties among Ohio providers

Ohio providers

Largest specialties in Ohio (% of in-state providers)

Case Manager/Care Coordinator - 10.9%Case Manager/Care Coordinator10.9%Student in an Organized Health Care Education/Training Program - 4.7%Student in an Organized Health Care Education/Training Program4.7%Licensed Practical Nurse - 4%Licensed Practical Nurse4%Addiction (Substance Use Disorder) Counselor - 3.5%Addiction (Substance Use Disorder) Counselor3.5%Registered Nurse - 3.4%Registered Nurse3.4%Pharmacist - 3.4%Pharmacist3.4%Clinical Genetics (M.D.) Physician - 0%Clinical Genetics (M.D.) Physician0%
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 Clinical Genetics (M.D.) Physician. Verify directly:

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).

Dennis Bartholomew, MD appears in the CMS NPPES registry as a Clinical Genetics (M.D.) Physician provider holding MD credentials at 700 CHILDREN'S DRIVE, Columbus, OH, 43205, with a listed phone of (614) 722-3545. NPI 1871599050 was issued on 06/22/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Bartholomew 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 12 prescription claims written by this provider, covering N/A Medicare beneficiaries and totaling roughly $584K in drug spend, split 100% brand-name and 0% 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.

Clinical Genetics (M.D.) Physician is a narrow specialty nationwide, with 825 enrolled providers across 50 states and an average of 261 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

700 CHILDREN'S DRIVE
Columbus, OH 43205

Provider Details

NPI 1871599050
Specialty Clinical Genetics (M.D.) Physician
Credentials MD
Gender Male
NPI Issued 06/22/2005

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 Dennis Bartholomew, MD. To verify Dennis Bartholomew, 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 · Brand-heavy

Dennis Bartholomew, MD - brand share 100.0%
Clinical Genetics (M.D.) Physician average

100% brand-name claims vs 0% generic, on 12 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.

12
Total Claims
$584K
Total Drug Cost
N/A
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
12
Total Day Supply
336
Brand vs Generic
100% brand / 0% generic
Brand Drug Cost
$584K
Generic Drug Cost
$0

Patient Demographics

Average Patient Age
34.0 years
Avg HCC Risk Score
1.49

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Aldurazyme
Laronidase
12

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

Clinical Genetics (M.D.) Physician Overview

How Dennis Bartholomew, MD fits within the Clinical Genetics (M.D.) Physician landscape nationally.

825
Clinical Genetics (M.D.) Physician Providers in US
50
States with Clinical Genetics (M.D.) Physician
261
Avg Claims per Provider

Dennis Bartholomew, MD's 12 claims are below the specialty average of 261.

Nearby Clinical Genetics (M.D.) Physician Providers in Ohio

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

Compare Clinical Genetics (M.D.) 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 Clinical Genetics (M.D.) 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 Dennis Bartholomew, MD's specialty?
Dennis Bartholomew, MD specializes in Clinical Genetics (M.D.) Physician and practices in Columbus, Ohio. Credentials: MD.
How much does Dennis Bartholomew, MD prescribe under Medicare Part D?
In 2023, Dennis Bartholomew, MD wrote 12 Medicare Part D claims totaling $584K in drug costs for N/A beneficiaries.
Where is Dennis Bartholomew, MD located?
Dennis Bartholomew, MD is located at 700 CHILDREN'S DRIVE, Columbus, OH, 43205. Phone: (614) 722-3545.
What is Dennis Bartholomew, MD's NPI number?
Dennis Bartholomew, MD's National Provider Identifier (NPI) is 1871599050, issued on 06/22/2005.
Does Dennis Bartholomew, MD prescribe more brand-name or generic drugs?
Dennis Bartholomew, MD's prescribing is 100% brand-name and 0% generic drugs by claim count, with $584K in brand drug costs.
How many Clinical Genetics (M.D.) Physician providers are there in the US?
There are 825 Clinical Genetics (M.D.) Physician providers across 50 states in the US. The average Clinical Genetics (M.D.) Physician provider writes 261 Medicare Part D claims per year.
What drugs does Dennis Bartholomew, MD prescribe most often?
Based on 2023 Medicare Part D data, Dennis Bartholomew, MD's most frequently prescribed drugs include Aldurazyme. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Dennis Bartholomew, MD accept Medicare?
Dennis Bartholomew, MD appears in CMS Medicare data with 12 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 Dennis Bartholomew, MD's credentials?
Dennis Bartholomew, MD's NPI is 1871599050 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

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.