NPPES file of Aug 9, 2026

Stavropoula Ioannis Tjoumakaris, MD

Neurological Surgery Physician · Philadelphia, PA

Stavropoula Ioannis Tjoumakaris, MD is a neurological surgery physician with a practice address in Philadelphia, Pennsylvania, and NPI 1629286018, issued on May 18, 2007. Check the license (Pennsylvania MD434545, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1629286018
Name
Stavropoula Ioannis Tjoumakaris
Credential
MD
Primary taxonomy
Neurological Surgery Physician 207T00000X
License numbers
MD434545 PA
25MA08528700 NJ
Self-reported in NPPES; status is on the state search
Practice location
909 Walnut Street, 2RD Floor, Philadelphia, PA 19107
Phone
(215) 955-7000
Enumerated
May 18, 2007
Record last updated
May 22, 2014 (not updated in 12 years: call before relying on the address or phone)
Fax
(215) 503-7007
Medicaid IDs
0200336 NJ
1023224090001 PA
Medicare enrollment
Enrolled (PECOS I20090728000147); accepts Medicare assignment
Medical or professional school
Jefferson Medical College Of Thomas Jefferson University, 2003
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Verify Stavropoula Ioannis Tjoumakaris in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
    Search for license MD434545
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Pennsylvania license search

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22% fewer Medicare Part D claims than the average neurological surgery physician in 2024

134 Medicare Part D claims for 34 beneficiaries, against an average of 172 among the 4,378 providers of this specialty who prescribed in Part D. Brand-name drugs were 33% of claims.

  1. Stavropoula Tjoumakaris134
  2. Specialty average172

Most prescribed

  1. Clopidogrel55 claims
  2. Brilinta43 claims
  3. Methylprednisolone14 claims
  4. Famotidine13 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: $23,299.41

25 payments; by number, the most common kind was consulting fee; the largest payer was MicroVention, Inc. The 5,377 providers of this specialty with any payment received $14,925.58 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Stavropoula Tjoumakaris$23,299
  2. Specialty average$14,926

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

  1. Jefferson University PhysiciansPhiladelphia, PA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Stavropoula Ioannis Tjoumakaris among 447 neurological surgery physician records in Pennsylvania

Stavropoula Ioannis Tjoumakaris, MD is one of 447 neurological surgery physician records with a practice address in Pennsylvania. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 37% of them.

  • NPI issued2007 · 37% of these records are older, 53% newer
  • In a Medicare fileYes · 85% of these records are
  • In the CMS Doctors and Clinicians fileYes · 70% of these records are
  • Graduated2003 · median 2006 among the 311 with a school on file
  • Record last updated2014 · 54% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207T00000X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Neurological Surgery Physician providers in Pennsylvania

There are 447 neurological surgery physician records in Pennsylvania.

The 8 neurological surgery physician records with the nearest ZIP codes

  1. David Andrews, M.D.Philadelphia, PA 191071518987890
  2. Christopher Farrell, MDPhiladelphia, PA 191071922134394
  3. Casey Halpern, MDPhiladelphia, PA 191071710185525
  4. James Harrop, M.D.Philadelphia, PA 191071215957337
  5. Pascal Jabbour, MDPhiladelphia, PA 191071710196100
  6. Jack Jallo, MDPhiladelphia, PA 191071720076706
  7. Kevin Judy, MDPhiladelphia, PA 191071144257452
  8. Henry Kesler, MDPhiladelphia, PA 191071376554360

Common questions

What is Stavropoula Ioannis Tjoumakaris, MD's NPI number?

Stavropoula Ioannis Tjoumakaris, MD's National Provider Identifier (NPI) is 1629286018, issued on May 18, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Stavropoula Ioannis Tjoumakaris, MD located?

The NPPES record lists a practice address at 909 Walnut Street, 2RD Floor, Philadelphia, PA, 19107. Phone: (215) 955-7000. Providers update this record themselves, so call before visiting.

How can I verify Stavropoula Ioannis Tjoumakaris, MD's license?

NPPES lists Pennsylvania license number MD434545, 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 Stavropoula Ioannis Tjoumakaris, MD prescribe under Medicare Part D?

In 2024, Stavropoula Ioannis Tjoumakaris, MD had 134 Medicare Part D claims for 34 beneficiaries; the average among neurological surgery physician prescribers was 172. 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.