NPPES file of Aug 9, 2026

William F. Rees, MD

Internal Medicine Physician · Lees Summit, MO

William F. Rees, MD is an internal medicine physician with a practice address in Lees Summit, Missouri, and NPI 1811952278, issued on Apr 19, 2006. Check the license (Missouri 2005029314, as entered in NPPES) on the Missouri Board of Registration for the Healing Arts; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1811952278
Name
William F. Rees
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
2005029314 MO
Self-reported in NPPES; status is on the state search
Practice location
2100 SE Blue Pkwy, Lees Summit, MO 64063
Phone
(913) 498-8787
Enumerated
Apr 19, 2006
Record last updated
Aug 2, 2021 (not updated in 5 years: call before relying on the address or phone)
Fax
(913) 498-1744
Medicaid ID
1811952278 MO
Medicare enrollment
Enrolled (PECOS I20051003000498); accepts Medicare assignment
Medical or professional school
University Of Missouri, Kansas City, School Of Medicine, 2001
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 2100 SE Blue Pkwy

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Caitlin Aaron, NP-CNurse Practitioner1649934340
  2. Deanna Bailey, RPSGT, CRTOther Specialist/Technologist1013318310
  3. Colton Bitely, MDEmergency Medicine Physician1003349994
  4. Urooge Boda, MDStudent in an Organized Health Care Education/Training Program1518520253
  5. Cristie Bruening, D.O.Anesthesiology Physician1407892409
  6. Charlene Carino-Warren, M.D.Anesthesiology Physician1386860583

Verify William F. Rees in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMissouri Board of Registration for the Healing Arts
    Search for license 2005029314
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Missouri license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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35% more Medicare Part D claims than the average internal medicine physician in 2024

4,290 Medicare Part D claims for 247 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 18% of claims. 161 claims were for opioids.

  1. William Rees4,290
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium354 claims
  2. Amlodipine Besylate272 claims
  3. Gabapentin185 claims
  4. Albuterol Sulfate Hfa152 claims
  5. Carvedilol134 claims
  6. Losartan Potassium127 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

The practice group's MIPS final score for 2023 (Medicare payment program): 86.9 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score77.5
  2. Costout of 100 · 30%57.7
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Bills Medicare through one group practice

  1. University Health PhysiciansKansas City, MO

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

William F. Rees among 2,604 internal medicine physician records in Missouri

William F. Rees, MD is one of 2,604 internal medicine physician records with a practice address in Missouri. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 8% of them.

  • NPI issued2006 · 8% of these records are older, 59% newer
  • In a Medicare fileYes · 77% of these records are
  • In the CMS Doctors and Clinicians fileYes · 55% of these records are
  • Graduated2001 · median 2006 among the 1,443 with a school on file
  • Record last updated2021 · 48% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Internal Medicine Physician providers in Missouri

There are 2,604 internal medicine physician records in Missouri.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Marcus Hernandez, MDLees Summit, MO 640631851898027
  2. David Knauss, DOLees Summit, MO 640631235754722
  3. Saira MemonLees Summit, MO 640631912522236
  4. Minar RaneLees Summit, MO 640631457976839
  5. Alyson Raymond, DOLees Summit, MO 640631386271534
  6. Mohd Boda, MDLees Summit, MO 640641285673038
  7. Rosemary Jones, MDLees Summit, MO 640641285919779
  8. Jeffrey Sattler, D.O.Lexington, MO 640671225078116

Common questions

What is William F. Rees, MD's NPI number?

William F. Rees, MD's National Provider Identifier (NPI) is 1811952278, issued on Apr 19, 2006. An NPI identifies a provider in billing; it is not a license.

Where is William F. Rees, MD located?

The NPPES record lists a practice address at 2100 SE Blue Pkwy, Lees Summit, MO, 64063. Phone: (913) 498-8787. Providers update this record themselves, so call before visiting.

How can I verify William F. Rees, MD's license?

NPPES lists Missouri license number 2005029314, as entered by the provider. Search the Missouri Board of Registration for the Healing Arts at https://www.fsmb.org/contact-a-state-medical-board/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does William F. Rees, MD prescribe under Medicare Part D?

In 2024, William F. Rees, MD had 4,290 Medicare Part D claims for 247 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.

What is William F. Rees, MD's MIPS final score?

The 2023 MIPS final score is 86.9 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.