NPPES file of Aug 9, 2026

Sheldon Ygnacio Freeberg, M.D.

Interventional Cardiology Physician · Tyler, TX

Sheldon Ygnacio Freeberg, M.D. is an interventional cardiology physician with a practice address in Tyler, Texas, and NPI 1639344310, issued on Apr 24, 2008. Check the license (Texas P6615, as entered in NPPES) on the Texas Medical Board; 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
1639344310
Name
Sheldon Ygnacio Freeberg
Credential
M.D.
Primary taxonomy
Interventional Cardiology Physician 207RI0011X
License numbers
P6615 TX
036.123679 IL
57012461 OH
Self-reported in NPPES; status is on the state search
Practice location
703 S Fleishel Ave, Tyler, TX 75701
Phone
(903) 606-7000
Enumerated
Apr 24, 2008
Record last updated
Jun 2, 2023
Medicaid ID
323308201 TX
Medicare enrollment
Enrolled (PECOS I20130812000518); accepts Medicare assignment
Medical or professional school
University Of Texas Medical Branch At Galveston, 2006
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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Also registered at 703 S Fleishel Ave

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. James Caccitolo, MDThoracic Surgery (Cardiothoracic Vascular Surgery) Physician1528074317
  2. Bethany Cowan, FNP-CFamily Nurse Practitioner1164094744
  3. Neelan Doolabh, M.D.Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician1598789117
  4. Marina Flaskas, MDCardiovascular Disease Physician1811048697
  5. Brandi Holcomb, ACNPNurse Practitioner1578915633
  6. Ramon Kumar, M.D.Interventional Cardiology Physician1093030934

Verify Sheldon Ygnacio Freeberg in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license P6615
    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 Texas license search

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45% more Medicare Part D claims than the average interventional cardiology physician in 2024

4,601 Medicare Part D claims for 795 beneficiaries, against an average of 3,179 among the 6,605 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims.

  1. Sheldon Freeberg4,601
  2. Specialty average3,179

Most prescribed

  1. Atorvastatin Calcium391 claims
  2. Rosuvastatin Calcium310 claims
  3. Carvedilol309 claims
  4. Furosemide273 claims
  5. Metoprolol Succinate268 claims
  6. Amlodipine Besylate261 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: $3,270.25

105 payments; by number, the most common kind was food and beverage; the largest payer was Medtronic, Inc. The 6,394 providers of this specialty with any payment received $7,062.29 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Sheldon Freeberg$3,270.25
  2. Specialty average$7,062.29

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. Christus Trinity ClinicGrapeland, TX

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

Interventional Cardiology Physician providers in Texas

There are 724 interventional cardiology physician records in Texas.

Other interventional cardiology physician records in Texas

  1. Aamer Abbas, MDEl Paso, TX1508975772
  2. Danish Abbasi, MDPearland, TX1629466610
  3. John Naeim Nakhla Abdelmalek, MDLubbock, TX1437719127
  4. Ramy AbdelmaseihGalveston, TX1922569466
  5. Yasir Abdul Ghaffar, M.D.San Antonio, TX1053674408
  6. Arif Abdullah, M.D.Conroe, TX1801803069
  7. Ghassan Abusaid, M.D.San Antonio, TX1487858072
  8. Ashraf Abusara, MDVictoria, TX1265745715
  9. John Adan, MDEl Paso, TX1295709665
  10. Tayo Addo, MDDallas, TX1457328403

Common questions

What is Sheldon Ygnacio Freeberg, M.D.'s NPI number?

Sheldon Ygnacio Freeberg, M.D.'s National Provider Identifier (NPI) is 1639344310, issued on Apr 24, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Sheldon Ygnacio Freeberg, M.D. located?

The NPPES record lists a practice address at 703 S Fleishel Ave, Tyler, TX, 75701. Phone: (903) 606-7000. Providers update this record themselves, so call before visiting.

How can I verify Sheldon Ygnacio Freeberg, M.D.'s license?

NPPES lists Texas license number P6615, as entered by the provider. Search the Texas Medical Board at https://profile.tmb.state.tx.us/Search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Sheldon Ygnacio Freeberg, M.D. prescribe under Medicare Part D?

In 2024, Sheldon Ygnacio Freeberg, M.D. had 4,601 Medicare Part D claims for 795 beneficiaries; the average among interventional cardiology physician prescribers was 3,179. 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.