Gregory Machen Duck, PA
Physician Assistant · Fort Worth, TX
Gregory Machen Duck, PA is a physician assistant with a practice address in Fort Worth, Texas, and NPI 1386165439, issued on Jun 29, 2017. Check the license with the Texas board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Gregory Machen Duck
- Credential
- PA
- Primary taxonomy
- Physician Assistant 363A00000X
- Practice location
- 1400 S Main St, Fort Worth, TX 76104
- Phone
- (817) 702-6926
- Enumerated
- Jun 29, 2017
- Record last updated
- Sep 10, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (817) 702-6930
- Medicare enrollment
- Enrolled (PECOS I20170815002488); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 10,999 in Texas → Look up another NPI →
Also registered at 1400 S Main St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Gregory Machen Duck in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Texas board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
21% fewer Medicare Part D claims than the average physician assistant in 2024
655 Medicare Part D claims for 127 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 23% of claims.
Most prescribed
- Carvedilol114 claims
- Furosemide81 claims
- Spironolactone69 claims
- Jardiance56 claims
- Metoprolol Succinate42 claims
- Eliquis37 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): 92 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: $1,284.47
11 payments; by number, the most common kind was travel and lodging; the largest payer was Abbott Laboratories. The 64,719 providers of this specialty with any payment received $841.65 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.
Bills Medicare through one group practice
- Acclaim Physician Group IncFort Worth, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gregory Machen Duck among 10,999 physician assistant records in Texas
Gregory Machen Duck, PA is one of 10,999 physician assistant records with a practice address in Texas. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 52% of them.
- NPI issued2017 · 52% of these records are older, 45% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 55% of these records are
- Graduated2017 · median 2017 among the 6,096 with a school on file
- Record last updated2018 · 40% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
599 physician assistant records list a practice address in Fort Worth
They are 599 of the 15,511 NPPES records with a practice address in Fort Worth, and 10,999 physician assistant records in Texas.
All 10,999 in Texas → Every provider in Fort Worth → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Mark Arneson, PAFort Worth, TX 761041033145099
- Molly Boggs, PA-CFort Worth, TX 761041154369155
- Clyde Hartman, PAFort Worth, TX 761041154371771
- Ruth Kested, PAFort Worth, TX 761041407822570
- Karen Kindler, PA-CFort Worth, TX 761041326002205
- Stephanie Lawrence, PAFort Worth, TX 761041417974007
- Dan Person, PAFort Worth, TX 761041942234521
- Pamela Plake, P.A.-CFort Worth, TX 761041023018645
Common questions
What is Gregory Machen Duck, PA's NPI number?
Gregory Machen Duck, PA's National Provider Identifier (NPI) is 1386165439, issued on Jun 29, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Gregory Machen Duck, PA located?
The NPPES record lists a practice address at 1400 S Main St, Fort Worth, TX, 76104. Phone: (817) 702-6926. Providers update this record themselves, so call before visiting.
How can I verify Gregory Machen Duck, PA's license?
Search the Texas board that licenses this profession; the NPPES record confirms identity only.
How much does Gregory Machen Duck, PA prescribe under Medicare Part D?
In 2024, Gregory Machen Duck, PA had 655 Medicare Part D claims for 127 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions only.
What is Gregory Machen Duck, PA's MIPS final score?
The 2023 MIPS final score is 92 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.