Constantine Chaknos, MD
Internal Medicine Physician · Philadelphia, PA
Constantine Chaknos, MD is an internal medicine physician with a practice address in Philadelphia, Pennsylvania, and NPI 1588870901, issued on May 15, 2007. Check the license on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- Constantine Chaknos
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- Practice location
- 3400 Civic Center Blvd., Philadelphia, PA 19104
- Phone
- (215) 662-2638
- Enumerated
- May 15, 2007
- Entity
- Type 1 · individual
Also registered at 3400 Civic Center Blvd.
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Mona Al Mukaddam, MDInternal Medicine Physician1043400567
- Stephen Armenti, MDOphthalmology Physician1457739443
- Brian Capell, MDDermatology Physician1265660567
- Emily Chu, MDDermatology Physician1689874935
- Kaitlin Ciotoli, CRNPWomen's Health Nurse Practitioner1346588258
- Celina Clifton, PA-CPhysician Assistant1861119257
Verify Constantine Chaknos in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)Check the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
36% fewer Medicare Part D claims than the average internal medicine physician in 2024
1,796 Medicare Part D claims for 279 beneficiaries, against an average of 2,785 among the 127,794 providers of this specialty who prescribed in Part D. Brand-name drugs were 18% of claims.
Most prescribed
- Amlodipine Besylate150 claims
- Calcitriol116 claims
- Potassium Citrate Er98 claims
- Losartan Potassium92 claims
- Chlorthalidone80 claims
- Lisinopril62 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.
One hospital or facility affiliation
- University OF Penn - Medical GroupRadnor, 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.
2,259 internal medicine physician records list a Philadelphia practice address
They are 2,259 of the 42,849 NPPES records with a Philadelphia practice address, and 8,636 internal medicine physician records in Pennsylvania.
All 2,259 in Philadelphia → All 8,636 in Pennsylvania → Every provider in Philadelphia →
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 Constantine Chaknos, MD's NPI number?
Constantine Chaknos, MD's National Provider Identifier (NPI) is 1588870901, issued on May 15, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Constantine Chaknos, MD located?
The NPPES record lists a practice address at 3400 Civic Center Blvd., Philadelphia, PA, 19104. Phone: (215) 662-2638. Providers update this record themselves, so call before visiting.
How can I verify Constantine Chaknos, MD's license?
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 Constantine Chaknos, MD prescribe under Medicare Part D?
In 2024, Constantine Chaknos, MD had 1,796 Medicare Part D claims for 279 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.