William James Calhoun, MD
Pulmonary Disease Physician · Galveston, TX
William James Calhoun, MD is a pulmonary disease physician with a practice address in Galveston, Texas, and NPI 1811056567, issued on Dec 8, 2006. Check the license (Texas N1274, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- William James Calhoun
- Credential
- MD
- Primary taxonomy
- Pulmonary Disease Physician 207RP1001X
- License number
- N1274 TX
Self-reported in NPPES; status is on the state search - Practice location
- 301 University Blvd, Galveston, TX 77555
- Phone
- (409) 772-2222
- Enumerated
- Dec 8, 2006
- Record last updated
- Jan 24, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicaid ID
- 178345801 TX
- Entity
- Type 1 · individual
8 nearest pulmonary disease physician records → All 967 in Texas → Look up another NPI →
Also registered at 301 University Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify William James Calhoun in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license N1274Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
78% fewer Medicare Part D claims than the average pulmonary disease physician in 2024
307 Medicare Part D claims for 42 beneficiaries, against an average of 1,425 among the 11,596 providers of this specialty who prescribed in Part D. Brand-name drugs were 64% of claims.
Most prescribed
- Albuterol Sulfate Hfa43 claims
- Symbicort30 claims
- Trelegy Ellipta28 claims
- Incruse Ellipta26 claims
- Fluticasone Propionate20 claims
- Dupixent Pen18 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): 75 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.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $137,818.53
71 payments; by number, the most common kind was travel and lodging; the largest payer was Genzyme Corporation. The 8,806 providers of this specialty with any payment received $5,159.88 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
William James Calhoun among 967 pulmonary disease physician records in Texas
William James Calhoun, MD is one of 967 pulmonary disease physician records with a practice address in Texas. 88% 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 16% of them.
- NPI issued2006 · 16% of these records are older, 52% newer
- In a Medicare fileYes · 88% of these records are
- In the CMS Doctors and Clinicians fileNo · 80% of these records are
- Record last updated2020 · 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 207RP1001X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Pulmonary Disease Physician providers in Texas
There are 967 pulmonary disease physician records in Texas.
All 967 in Texas → Every provider in Galveston → Pulmonary Disease Physician nationwide →
The 8 pulmonary disease physician records with the nearest ZIP codes
- Victor Cardenas, MDGalveston, TX 775551730248378
- Alexander Duarte, MDGalveston, TX 775551780744730
- Philip Foster, MDGalveston, TX 775551548416340
- Mahmoud Ibrahim, MDGalveston, TX 775551649791567
- Joseph Nagan, D.O.Galveston, TX 775551164798591
- Gayatri NairGalveston, TX 775551992369383
- Shawn Nishi, M.D.Galveston, TX 775551013105816
- Justin SeashoreGalveston, TX 775551851634471
Common questions
What is William James Calhoun, MD's NPI number?
William James Calhoun, MD's National Provider Identifier (NPI) is 1811056567, issued on Dec 8, 2006. An NPI identifies a provider in billing; it is not a license.
Where is William James Calhoun, MD located?
The NPPES record lists a practice address at 301 University Blvd, Galveston, TX, 77555. Phone: (409) 772-2222. Providers update this record themselves, so call before visiting.
How can I verify William James Calhoun, MD's license?
NPPES lists Texas license number N1274, as entered by the provider. Search the Texas Medical Board at https://profile.tmb.state.tx.us/Search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does William James Calhoun, MD prescribe under Medicare Part D?
In 2024, William James Calhoun, MD had 307 Medicare Part D claims for 42 beneficiaries; the average among pulmonary disease physician prescribers was 1,425. Part D covers Medicare prescriptions only.
What is William James Calhoun, MD's MIPS final score?
The 2023 MIPS final score is 75 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.