Thad F. Schilling, M.D.
Internal Medicine Physician · Worcester, MA
Thad F. Schilling, M.D. is an internal medicine physician with a practice address in Worcester, Massachusetts, and NPI 1801823935, issued on Jun 26, 2006. Check the license (Massachusetts 217424, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Thad F. Schilling
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 217424 MA
Self-reported in NPPES; status is on the state search - Practice location
- 5 Neponset St, Worcester, MA 01606
- Phone
- (508) 595-2300
- Enumerated
- Jun 26, 2006
- Record last updated
- Sep 17, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (508) 853-5226
- Medicaid ID
- 110034171A MA
- Medicare enrollment
- Enrolled (PECOS I20090706000250); accepts Medicare assignment
- Medical or professional school
- Clvlnd Clinic Lerner College Of Med Of Case Wstn Rsv University, 2000
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 6,825 in Massachusetts → Look up another NPI →
Also registered at 5 Neponset St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Sheila Abdallah, MDFamily Medicine Physician1821356312
- Caroline Anastasi, LMHCMental Health Counselor1881140788
- Nicole Barr, NPFamily Nurse Practitioner1700524873
- Kern Bayard, MDInternal Medicine Physician1699777888
- Wendy Bergman, MDInternal Medicine Physician1083674451
- Irene Blair, NPNurse Practitioner1558337824
Verify Thad F. Schilling in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 217424Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average internal medicine physician in 2024
41 Medicare Part D claims for 31 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
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.
Bills Medicare through one group practice
- Reliant Medical Group IncWorcesteer, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Thad F. Schilling among 6,825 internal medicine physician records in Massachusetts
Thad F. Schilling, M.D. is one of 6,825 internal medicine physician records with a practice address in Massachusetts. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 12% of them.
- NPI issued2006 · 12% of these records are older, 54% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2000 · median 2004 among the 4,103 with a school on file
- Record last updated2018 · 64% 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 Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
448 internal medicine physician records list a practice address in Worcester
They are 448 of the 13,166 NPPES records with a practice address in Worcester, and 6,825 internal medicine physician records in Massachusetts.
All 6,825 in Massachusetts → Every provider in Worcester → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Caroline Alper, M.D.Worcester, MA 016061134228992
- Kern Bayard, MDWorcester, MA 016061699777888
- Wendy Bergman, MDWorcester, MA 016061083674451
- Lawrence Garber, MDWorcester, MA 016061912971037
- Kripa Gautam, MDWorcester, MA 016061447712815
- Frederick Georgian, MDWorcester, MA 016061205890746
- George Groussis, MDWorcester, MA 016061184690992
- Robert Honig, MDWorcester, MA 016061386610467
Common questions
What is Thad F. Schilling, M.D.'s NPI number?
Thad F. Schilling, M.D.'s National Provider Identifier (NPI) is 1801823935, issued on Jun 26, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Thad F. Schilling, M.D. located?
The NPPES record lists a practice address at 5 Neponset St, Worcester, MA, 01606. Phone: (508) 595-2300. Providers update this record themselves, so call before visiting.
How can I verify Thad F. Schilling, M.D.'s license?
NPPES lists Massachusetts license number 217424, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://findmydoctor.mass.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Thad F. Schilling, M.D. prescribe under Medicare Part D?
In 2024, Thad F. Schilling, M.D. had 41 Medicare Part D claims for 31 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.