NPPES file of Aug 9, 2026

William Lawson Blanchet, MD

Internal Medicine Physician · Boulder, CO

William Lawson Blanchet, MD is an internal medicine physician with a practice address in Boulder, Colorado, and NPI 1659466837, issued on Oct 4, 2006. Check the license (Colorado CO25352, as entered in NPPES) on the Colorado Medical Board; the Medicare figures below come from public CMS files.

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

NPPES recordNPPES file of Aug 9, 2026
1659466837
Name
William Lawson Blanchet
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
CO25352 CO
Self-reported in NPPES; status is on the state search
Practice location
2880 Folsom St, Boulder, CO 80304
Phone
(303) 327-7047
Enumerated
Oct 4, 2006
Record last updated
Mar 7, 2023
Fax
(303) 443-7168
Medicaid ID
01253525 CO
Medicare enrollment
Enrolled (PECOS I20070308000130); accepts Medicare assignment
Medical or professional school
Louisiana State University School Of Medicine In New Orleans, 1979
Telehealth
Offers telehealth (CMS)
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 2880 Folsom St

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

  1. John Campbell, PACPhysician Assistant1669575452

Verify William Lawson Blanchet in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersColorado Medical Board
    Search for license CO25352
    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 Colorado license search

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43% more Medicare Part D claims than the average internal medicine physician in 2024

4,538 Medicare Part D claims for 287 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims. 85 claims were for opioids.

  1. William Blanchet4,538
  2. Specialty average3,176

Most prescribed

  1. Levothyroxine Sodium240 claims
  2. Ezetimibe163 claims
  3. Metoprolol Succinate145 claims
  4. Amlodipine Besylate127 claims
  5. Losartan Potassium120 claims
  6. Gabapentin110 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.

Industry payments in 2024: $169.69

6 payments; by number, the most common kind was food and beverage; the largest payer was Amgen Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. William Blanchet$169.69
  2. Specialty average$1,303.06

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Boulder Internal Medicine PCBoulder, CO

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

William Lawson Blanchet among 2,046 internal medicine physician records in Colorado

William Lawson Blanchet, MD is one of 2,046 internal medicine physician records with a practice address in Colorado. 71% 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 10% of them.

  • NPI issued2006 · 10% of these records are older, 60% newer
  • In a Medicare fileYes · 71% of these records are
  • In the CMS Doctors and Clinicians fileYes · 53% of these records are
  • Graduated1979 · median 2006 among the 1,090 with a school on file
  • Record last updated2023 · 61% 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 Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

74 internal medicine physician records list a practice address in Boulder

They are 74 of the 5,635 NPPES records with a practice address in Boulder, and 2,046 internal medicine physician records in Colorado.

The 8 internal medicine physician records with the nearest ZIP codes

  1. William Brubaker, M.D.Boulder, CO 803041740262559
  2. Amy Campbell, MDBoulder, CO 803041033108642
  3. Jeffrey Carter, M.D.Boulder, CO 803041457441032
  4. Jennifer Christensen, MDBoulder, CO 803041750365417
  5. Jose Delgado, M.D.Boulder, CO 803041275559049
  6. Coco Dughi, M.D.Boulder, CO 803041356325013
  7. Connor Graham, M.D.Boulder, CO 803041669421301
  8. Daniel Kinderlehrer, MDBoulder, CO 803041629131974

Common questions

What is William Lawson Blanchet, MD's NPI number?

William Lawson Blanchet, MD's National Provider Identifier (NPI) is 1659466837, issued on Oct 4, 2006. An NPI identifies a provider in billing; it is not a license.

Where is William Lawson Blanchet, MD located?

The NPPES record lists a practice address at 2880 Folsom St, Boulder, CO, 80304. Phone: (303) 327-7047. Providers update this record themselves, so call before visiting.

How can I verify William Lawson Blanchet, MD's license?

NPPES lists Colorado license number CO25352, as entered by the provider. Search the Colorado Medical Board at https://dpo.colorado.gov/Medical. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does William Lawson Blanchet, MD prescribe under Medicare Part D?

In 2024, William Lawson Blanchet, MD had 4,538 Medicare Part D claims for 287 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.

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.