Nickolas E. Klingos, DO
Internal Medicine Physician · Philadelphia, PA
Nickolas E. Klingos, DO is an internal medicine physician with a practice address in Philadelphia, Pennsylvania, and NPI 1497331391, issued on Mar 22, 2021. Check the license (Pennsylvania OS023352, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- Nickolas E. Klingos
- Credential
- DO
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- OS023352 PA
Self-reported in NPPES; status is on the state search - Practice location
- 4190 City Ave, Philadelphia, PA 19131
- Phone
- (609) 408-5212
- Enumerated
- Mar 22, 2021
- Record last updated
- Jul 3, 2024
- Medicare enrollment
- Enrolled (PECOS I20240610001162); accepts Medicare assignment
- Medical or professional school
- Philadelphia College Of Osteopathic Medicine, 2021
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 7,300 in Pennsylvania → Look up another NPI →
Also registered at 4190 City Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Donald Allison, D.O.Neuromusculoskeletal Medicine & OMM Physician1457658015
Verify Nickolas E. Klingos in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license OS023352Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
95% fewer Medicare Part D claims than the average internal medicine physician in 2024
164 Medicare Part D claims for 79 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of 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: $423.55
7 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 50,334 providers of this specialty with any payment received $1,303.06 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
- Abington Memorial HospitalAbington, PA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Nickolas E. Klingos among 7,300 internal medicine physician records in Pennsylvania
Nickolas E. Klingos, DO is one of 7,300 internal medicine physician records with a practice address in Pennsylvania. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 81% of them.
- NPI issued2021 · 81% of these records are older, 15% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated2021 · median 2008 among the 4,208 with a school on file
- Record last updated2024 · 56% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
1,855 internal medicine physician records list a practice address in Philadelphia
They are 1,855 of the 42,849 NPPES records with a practice address in Philadelphia, and 7,300 internal medicine physician records in Pennsylvania.
All 7,300 in Pennsylvania → Every provider in Philadelphia → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Walter Bantom, M.D.Philadelphia, PA 191311194741710
- Daniel Jones, M.D.Philadelphia, PA 191311598785115
- Azad Khan, M.DPhiladelphia, PA 191311154471621
- Karen Krich, MDPhiladelphia, PA 191311306862180
- Sumit Kumar, M.D.Philadelphia, PA 191311922259431
- Pat Lannutti, DOPhiladelphia, PA 191311356343388
- Sophie Parker, M.D.Philadelphia, PA 191311760416796
- Brian Penza, D.O.Philadelphia, PA 191311962726893
Common questions
What is Nickolas E. Klingos, DO's NPI number?
Nickolas E. Klingos, DO's National Provider Identifier (NPI) is 1497331391, issued on Mar 22, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Nickolas E. Klingos, DO located?
The NPPES record lists a practice address at 4190 City Ave, Philadelphia, PA, 19131. Phone: (609) 408-5212. Providers update this record themselves, so call before visiting.
How can I verify Nickolas E. Klingos, DO's license?
NPPES lists Pennsylvania license number OS023352, 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 Nickolas E. Klingos, DO prescribe under Medicare Part D?
In 2024, Nickolas E. Klingos, DO had 164 Medicare Part D claims for 79 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
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.