Kathy Theall, MD
Medical Oncology Physician · Boston, MA
Kathy Theall, MD is a medical oncology physician with a practice address in Boston, Massachusetts, and NPI 1881679462, issued on Dec 7, 2005. Check the license (Massachusetts 81285, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Kathy Theall
- Credential
- MD
- Primary taxonomy
- Medical Oncology Physician 207RX0202X
- License numbers
- 81285 MA
MD10105 RI
Self-reported in NPPES; status is on the state search - Practice location
- 800 Washington St # 245, Boston, MA 02111
- Phone
- (617) 636-8148
- Enumerated
- Dec 7, 2005
- Record last updated
- Nov 5, 2009 (not updated in 17 years: call before relying on the address or phone)
- Fax
- (617) 636-8538
- Medicaid IDs
- 9002761 RI
2127091 MA - Entity
- Type 1 · individual
8 nearest medical oncology physician records → All 421 in Massachusetts → Look up another NPI →
Also registered at 800 Washington St # 245
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Ruchi Hamal, MDHematology & Oncology Physician1447670823
- Susan Waisgerber, ACNPAcute Care Nurse Practitioner1831626464
Verify Kathy Theall in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 81285Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Kathy Theall among 421 medical oncology physician records in Massachusetts
Kathy Theall, MD is one of 421 medical oncology physician records with a practice address in Massachusetts. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 90% newer
- In a Medicare fileNo · 76% of these records are
- In the CMS Doctors and Clinicians fileNo · 69% of these records are
- Record last updated2009 · 51% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RX0202X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Medical Oncology Physician providers in Massachusetts
There are 421 medical oncology physician records in Massachusetts. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 421 in Massachusetts → Every provider in Boston → Medical Oncology Physician nationwide →
The 8 medical oncology physician records with the nearest ZIP codes
- Frank Haluska, M.D.Boston, MA 021111942302559
- Richard Junghans, MDBoston, MA 021111124029376
- Paul Mathew, M.D.Boston, MA 021111447341284
- Glen Weiss, MDBoston, MA 021111770639353
- Jason Fisherman, M.D.Boston, MA 021101265557102
- Lawrence Blaszkowsky, MDBoston, MA 021141225028137
- Leif Ellisen, MD PHDBoston, MA 021141225028533
- Rajesh Gandhi, MDBoston, MA 021141992795512
Common questions
What is Kathy Theall, MD's NPI number?
Kathy Theall, MD's National Provider Identifier (NPI) is 1881679462, issued on Dec 7, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Kathy Theall, MD located?
The NPPES record lists a practice address at 800 Washington St # 245, Boston, MA, 02111. Phone: (617) 636-8148. Providers update this record themselves, so call before visiting.
How can I verify Kathy Theall, MD's license?
NPPES lists Massachusetts license number 81285, 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.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.