Katherine I. Zombik
Physician Assistant · Boston, MA
Katherine I. Zombik is a physician assistant with a practice address in Boston, Massachusetts, and NPI 1912658279, issued on Jan 18, 2022. Check the license (Massachusetts PA100498, as entered in NPPES) with the Massachusetts board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Katherine I. Zombik
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- PA100498 MA
Self-reported in NPPES; status is on the state search - Practice location
- 399 Boylston St, Boston, MA 02116
- Phone
- (857) 384-6986
- Enumerated
- Jan 18, 2022
- Record last updated
- Jun 14, 2024
- Medicare enrollment
- Enrolled (PECOS I20240624005085); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 4,713 in Massachusetts → Look up another NPI →
Also registered at 399 Boylston St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- James Meyers, M.D.Family Medicine Physician1952369332
- Vladimir Odinets, PA-CMedical Physician Assistant1871982124
- Jackie Peterson, LICSW, LCSWMental Health Counselor1932685252
Verify Katherine I. Zombik in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
Search for license PA100498Check 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 physician assistant in 2024
45 Medicare Part D claims for 33 beneficiaries, against an average of 830 among the 101,058 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 2 group practices
- Carbon Health Medical Group OF Florida PABoston, MA
- Carbon Health Medical Group OF Massachusetts PCBoston, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Katherine I. Zombik among 4,713 physician assistant records in Massachusetts
Katherine I. Zombik is one of 4,713 physician assistant records with a practice address in Massachusetts. 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 2022, is newer than 68% of them.
- NPI issued2022 · 68% of these records are older, 25% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated2021 · median 2019 among the 3,217 with a school on file
- Record last updated2024 · 38% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
1,660 physician assistant records list a practice address in Boston
They are 1,660 of the 41,865 NPPES records with a practice address in Boston, and 4,713 physician assistant records in Massachusetts.
All 4,713 in Massachusetts → Every provider in Boston → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Kelly Danek, PA-CBoston, MA 021161457901373
- Alexandra Derosa, PA-CBoston, MA 021161710726948
- Joseph English, PABoston, MA 021161508916693
- Stacy Fickler, PABoston, MA 021161750796942
- Katlin Fister, PA-CBoston, MA 021161215424189
- Jessica Frawley, PA-CBoston, MA 021161336718618
- Nicole Green, PA-CBoston, MA 021161346297256
- Gina JosephBoston, MA 021161043941784
Common questions
What is Katherine I. Zombik's NPI number?
Katherine I. Zombik's National Provider Identifier (NPI) is 1912658279, issued on Jan 18, 2022. An NPI identifies a provider in billing; it is not a license.
Where is Katherine I. Zombik located?
The NPPES record lists a practice address at 399 Boylston St, Boston, MA, 02116. Phone: (857) 384-6986. Providers update this record themselves, so call before visiting.
How can I verify Katherine I. Zombik's license?
NPPES lists Massachusetts license number PA100498, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.
How much does Katherine I. Zombik prescribe under Medicare Part D?
In 2024, Katherine I. Zombik had 45 Medicare Part D claims for 33 beneficiaries; the average among physician assistant prescribers was 830. 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.