Donald Douglas Merrill, PA-C
Physician Assistant · Fort Hood, TX
Donald Douglas Merrill, PA-C is a physician assistant with a practice address in Fort Hood, Texas, and NPI 1073798567, issued on Jan 3, 2008. Check the license with the Texas board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Donald Douglas Merrill
- Credential
- PA-C
- Primary taxonomy
- Physician Assistant 363A00000X
- Practice location
- 36000 Darnall Loop, Fort Hood, TX 76544
- Phone
- (254) 288-8025
- Enumerated
- Jan 3, 2008
- Record last updated
- Jan 3, 2008 (not updated in 18 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20141010000408); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 10,999 in Texas → Look up another NPI →
Also registered at 36000 Darnall Loop
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Donald Douglas Merrill 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
40% more Medicare Part D claims than the average physician assistant in 2024
1,166 Medicare Part D claims for 472 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 44 claims were for opioids.
Most prescribed
- Cephalexin130 claims
- Ondansetron Hcl97 claims
- Meclizine Hcl73 claims
- Dicyclomine Hcl63 claims
- Cyclobenzaprine Hcl41 claims
- Tramadol Hcl41 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): 92.7 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: $14.29
1 payment: food and beverage; the largest payer was Lilly USA, LLC. 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
- Scoccia Medical Services PLLCKerrville, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Donald Douglas Merrill among 10,999 physician assistant records in Texas
Donald Douglas Merrill, PA-C 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 2008, is newer than 20% of them.
- NPI issued2008 · 20% of these records are older, 76% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 55% of these records are
- Graduated2007 · median 2017 among the 6,096 with a school on file
- Record last updated2008 · 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).
92 physician assistant records list a practice address in Fort Hood
They are 92 of the 1,141 NPPES records with a practice address in Fort Hood, and 10,999 physician assistant records in Texas.
All 10,999 in Texas → Every provider in Fort Hood → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Juan Briones, PACFort Hood, TX 765441740372184
- Jason Caldwell, MPAS, PA-CFort Cavazos, TX 765441609886829
- Anna Ferguson, MPASFort Hood, TX 765441306950068
- Darren Hightower, PA-CFort Hood, TX 765441114017761
- Vaneesh Hofler, PACFt Hood, TX 765441336194091
- Robert Houser, P.A.-C.Fort Hood, TX 765441326046574
- Kohji Kure, PHYSICIAN ASSISTANTFort Hood, TX 765441366433765
- Alex Morales, PA-CFort Hood, TX 765441043287782
Common questions
What is Donald Douglas Merrill, PA-C's NPI number?
Donald Douglas Merrill, PA-C's National Provider Identifier (NPI) is 1073798567, issued on Jan 3, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Donald Douglas Merrill, PA-C located?
The NPPES record lists a practice address at 36000 Darnall Loop, Fort Hood, TX, 76544. Phone: (254) 288-8025. Providers update this record themselves, so call before visiting.
How can I verify Donald Douglas Merrill, PA-C's license?
Search the Texas board that licenses this profession; the NPPES record confirms identity only.
How much does Donald Douglas Merrill, PA-C prescribe under Medicare Part D?
In 2024, Donald Douglas Merrill, PA-C had 1,166 Medicare Part D claims for 472 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions only.
What is Donald Douglas Merrill, PA-C's MIPS final score?
The 2023 MIPS final score is 92.7 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.