2026 NPPES data Cardiovascular Disease Physician NPI 1386702348 M.D.
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Charles Freeman, M.D.

Cardiovascular Disease Physician in Oklahoma City, Oklahoma. This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 24,795 in Cardiovascular Disease 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
96
Medicare Part D claims · 43 beneficiaries · Cardiovascular Disease Physician avg: 3K
Generic prescribing
84%
generic claims · 16% 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

Charles Freeman, M.D. filed 96 Medicare Part D claims in 2023 as a Cardiovascular Disease Physician in Oklahoma City, Oklahoma, prescribing 84% generic.

96
Part D claims, 2023
84%
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.

Charles Freeman, M.D.'s Medicare Part D volume vs every U.S. prescriber

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

96 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)

Charles Freeman, 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).

What does the federal data show about Charles Freeman, M.D.?

Quality data not reported

NPI registry status

Active

Issued 12/04/2006

NPI 1386702348

Primary specialty

Cardiovascular Disease Physician

Mid-sized

24,795 US NPIs in this specialty

Medicare Part D claims

96 97% vs specialty avg

2023 prescription claims

Specialty avg: 3,033

Specialty distribution in Oklahoma

How Cardiovascular Disease Physician compares to other specialties among Oklahoma providers

Oklahoma providers
Case Manager/Care Coordinator - 9.7%Case Manager/Care Coordinator9.7%Mental Health Counselor - 7.2%Mental Health Counselor7.2%Behavior Technician - 6.2%Behavior Technician6.2%Peer Specialist - 5.5%Peer Specialist5.5%Counselor - 5%Counselor5%Student in an Organized Health Care Education/Training Program - 4.2%Student in an Organized Health Care Education/Training Program4.2%Cardiovascular Disease Physician - 0.2%Cardiovascular Disease Physician0.2%
Largest specialties in Oklahoma (% 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 Cardiovascular Disease 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).

Charles Freeman, M.D. appears in the CMS NPPES registry as a Cardiovascular Disease Physician provider holding M.D. credentials at 4525 S KLEIN AVE STE 1000, Oklahoma City, OK, 73109, with a listed phone of (405) 608-4624. NPI 1386702348 was issued on 12/04/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Freeman 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 96 prescription claims written by this provider, covering 43 Medicare beneficiaries and totaling roughly $17K in drug spend, split 16% brand-name and 84% 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.

Cardiovascular Disease Physician is a mid-sized specialty nationwide, with 24,795 enrolled providers across 54 states and an average of 3,033 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

4525 S KLEIN AVE STE 1000
Oklahoma City, OK 73109

Provider Details

NPI 1386702348
Specialty Cardiovascular Disease Physician
Credentials M.D.
Gender Male
NPI Issued 12/04/2006

Brand vs generic prescribing mix · Typical

Charles Freeman, M.D. - brand share 16.0%
Cardiovascular Disease Physician average

16% brand-name claims vs 84% generic, on 96 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.

96
Total Claims
$17K
Total Drug Cost
43
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
231
Total Day Supply
6,796
Brand vs Generic
16% brand / 84% generic
Brand Drug Cost
$16K
Generic Drug Cost
$1K

Patient Demographics

Average Patient Age
77.2 years
Avg HCC Risk Score
1.32
Gender Split
42% female / 58% male

Cardiovascular Disease Physician Overview

How Charles Freeman, M.D. fits within the Cardiovascular Disease Physician landscape nationally.

24,795
Cardiovascular Disease Physician Providers in US
54
States with Cardiovascular Disease Physician
3,033
Avg Claims per Provider

Charles Freeman, M.D.'s 96 claims are below the specialty average of 3,033.

Nearby Cardiovascular Disease Physician Providers in Oklahoma

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

Compare Cardiovascular Disease 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 Oklahoma medical board, federal registration is not a license check. Credential verification guide
  • Weigh a second option: compare this provider with a nearby Cardiovascular Disease 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 Charles Freeman, M.D.'s specialty?
Charles Freeman, M.D. specializes in Cardiovascular Disease Physician and practices in Oklahoma City, Oklahoma. Credentials: M.D..
How much does Charles Freeman, M.D. prescribe under Medicare Part D?
In 2023, Charles Freeman, M.D. wrote 96 Medicare Part D claims totaling $17K in drug costs for 43 beneficiaries.
Where is Charles Freeman, M.D. located?
Charles Freeman, M.D. is located at 4525 S KLEIN AVE STE 1000, Oklahoma City, OK, 73109. Phone: (405) 608-4624.
What is Charles Freeman, M.D.'s NPI number?
Charles Freeman, M.D.'s National Provider Identifier (NPI) is 1386702348, issued on 12/04/2006.
Does Charles Freeman, M.D. prescribe more brand-name or generic drugs?
Charles Freeman, M.D.'s prescribing is 16% brand-name and 84% generic drugs by claim count, with $16K in brand drug costs.
How many Cardiovascular Disease Physician providers are there in the US?
There are 24,795 Cardiovascular Disease Physician providers across 54 states in the US. The average Cardiovascular Disease Physician provider writes 3,033 Medicare Part D claims per year.
Does Charles Freeman, M.D. accept Medicare?
Charles Freeman, M.D. appears in CMS Medicare data with 96 Part D claims and 43 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Charles Freeman, M.D.'s credentials?
Charles Freeman, M.D.'s NPI is 1386702348 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

Compiled from official public sources by the PlainDoctor editorial team.