NPPES file of Aug 9, 2026

William T. Gerson, M.D.

Pediatrics Physician · South Burlington, VT

William T. Gerson, M.D. is a pediatrics physician with a practice address in South Burlington, Vermont, and NPI 1528072212, issued on Jul 28, 2006. Check the license (Vermont 0420007748, as entered in NPPES) on the Vermont Board of Medical Practice; 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
1528072212
Name
William T. Gerson
Credential
M.D.
Primary taxonomy
Pediatrics Physician 208000000X
License number
0420007748 VT
Self-reported in NPPES; status is on the state search
Practice location
52 Timberlane, South Burlington, VT 05403
Phone
(802) 658-2320
Enumerated
Jul 28, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(802) 863-6933
Medicaid ID
1002259 VT
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 52 Timberlane

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

  1. Bradley Friesen, M.D.Pediatrics Physician1952315996
  2. Debra Hartswick, M.D.Pediatrics Physician1205840261
  3. Marshall Land, M.D.Pediatrics Physician1760496541

Verify William T. Gerson in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersVermont Board of Medical Practice
    Search for license 0420007748
    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 Vermont license search

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95% fewer Medicare Part D claims than the average pediatrics physician in 2024

17 Medicare Part D claims, against an average of 375 among the 5,609 providers of this specialty who prescribed in Part D.

  1. William Gerson17
  2. Specialty average375

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.

William T. Gerson among 181 pediatrics physician records in Vermont

William T. Gerson, M.D. is one of 181 pediatrics physician records with a practice address in Vermont. 18% 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 9% of them.

  • NPI issued2006 · 9% of these records are older, 51% newer
  • In a Medicare fileYes · 18% of these records are
  • In the CMS Doctors and Clinicians fileNo · 14% of these records are
  • Record last updated2007 · 57% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208000000X and a Vermont practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

15 pediatrics physician records list a practice address in South Burlington

They are 15 of the 843 NPPES records with a practice address in South Burlington, and 181 pediatrics physician records in Vermont.

The 8 pediatrics physician records with the nearest ZIP codes

  1. Lisa Burns, MDSouth Burlington, VT 054031366764243
  2. Jennifer Carlson, MDSouth Burlington, VT 054031710939814
  3. Leah Costello, MDSouth Burlington, VT 054031326292269
  4. Monica Fiorenza, MDSouth Burlington, VT 054031235194333
  5. Bradley Friesen, M.D.South Burlington, VT 054031952315996
  6. Karin Gray, MDSouth Burlington, VT 054031922217009
  7. Debra Hartswick, M.D.South Burlington, VT 054031205840261
  8. Elizabeth Hunt, M.D.South Burlington, VT 054031366575771

Common questions

What is William T. Gerson, M.D.'s NPI number?

William T. Gerson, M.D.'s National Provider Identifier (NPI) is 1528072212, issued on Jul 28, 2006. An NPI identifies a provider in billing; it is not a license.

Where is William T. Gerson, M.D. located?

The NPPES record lists a practice address at 52 Timberlane, South Burlington, VT, 05403. Phone: (802) 658-2320. Providers update this record themselves, so call before visiting.

How can I verify William T. Gerson, M.D.'s license?

NPPES lists Vermont license number 0420007748, as entered by the provider. Search the Vermont Board of Medical Practice at https://www.healthvermont.gov/systems/board-medical-practice. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does William T. Gerson, M.D. prescribe under Medicare Part D?

In 2024, William T. Gerson, M.D. had 17 Medicare Part D claims; the average among pediatrics physician prescribers was 375. 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.