Dennis Demby, M.D.
Internal Medicine Physician · Butler, PA
Dennis Demby, M.D. is an internal medicine physician with a practice address in Butler, Pennsylvania, and NPI 1780612523, issued on Jun 29, 2006. Check the license (Pennsylvania MD023705E, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- Dennis Demby
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- MD023705E PA
Self-reported in NPPES; status is on the state search - Practice location
- 1022B N Main St, Butler, PA 16001
- Phone
- (724) 284-4185
- Enumerated
- Jun 29, 2006
- Entity
- Type 1 · individual
Also registered at 1022B N Main St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Donald Halpin, P.A.Physician Assistant1740218049
- Jennifer Lazor, P.A.Physician Assistant1588692768
- Kevin Leighton, M.D.Family Medicine Physician1568490860
- Hugh Shearer, D.O.Family Medicine Physician1316974579
Verify Dennis Demby in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license MD023705ECheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
2.6 times the Medicare Part D claims of the average internal medicine physician in 2024
7,257 Medicare Part D claims for 476 beneficiaries, against an average of 2,785 among the 127,794 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 186 claims were for opioids.
Most prescribed
- Atorvastatin Calcium453 claims
- Lisinopril350 claims
- Levothyroxine Sodium308 claims
- Simvastatin282 claims
- Pantoprazole Sodium281 claims
- Amlodipine Besylate276 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: $786.65
44 payments, mostly food and beverage; the largest payer was Lilly USA, LLC. The 65,274 providers of this specialty with any payment received $2,536.66 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.
2 hospital and facility affiliations
- Butler Medical ProvidersButler, PA
- Keystone Rehabilitation Systems IncSeven Fields, PA
Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
42 internal medicine physician records list a Butler practice address
They are 42 of the 1,139 NPPES records with a Butler practice address, and 8,636 internal medicine physician records in Pennsylvania.
All 42 in Butler → All 8,636 in Pennsylvania → Every provider in Butler →
Other internal medicine physician records in Pennsylvania
- Erin Aakhus, M.D.Philadelphia, PA1255652087
- Muhammad Aamir, MDAllentown, PA1477039147
- Saira Aamir, MDYork, PA1184515686
- John Aaron, MDWest Grove, PA1427094531
- Todd Aaron, MDPhiladelphia, PA1457350522
- Cybele Abad, M.D.Pittsburgh, PA1619900453
- Mario Abad, MDDuncannon, PA1710022975
- Joseph Abalos, M.D.Seneca, PA1215128434
- Ali Abbas, MDYork, PA1023343779
- Huda Abbas, MDDoylestown, PA1316187024
Common questions
What is Dennis Demby, M.D.'s NPI number?
Dennis Demby, M.D.'s National Provider Identifier (NPI) is 1780612523, issued on Jun 29, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Dennis Demby, M.D. located?
The NPPES record lists a practice address at 1022B N Main St, Butler, PA, 16001. Phone: (724) 284-4185. Providers update this record themselves, so call before visiting.
How can I verify Dennis Demby, M.D.'s license?
NPPES lists Pennsylvania license number MD023705E, as entered by the provider. Search the Pennsylvania Department of State (PALS) at https://www.pals.pa.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Dennis Demby, M.D. prescribe under Medicare Part D?
In 2024, Dennis Demby, M.D. had 7,257 Medicare Part D claims for 476 beneficiaries; the average among internal medicine physician prescribers was 2,785. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.