NPPES file of Aug 9, 2026

Sylvia J. Dennison, MD

Psychiatry Physician · Antigo, WI

Sylvia J. Dennison, MD is a psychiatry physician with a practice address in Antigo, Wisconsin, and NPI 1700838836, issued on May 17, 2006. Check the license (Wisconsin 44166-20, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1700838836
Name
Sylvia J. Dennison
Credential
MD
Primary taxonomy
Psychiatry Physician 2084P0800X
License number
44166-20 WI
Self-reported in NPPES; status is on the state search
Practice location
110 E 5TH Ave, Antigo, WI 54409
Phone
(715) 623-2351
Enumerated
May 17, 2006
Record last updated
Dec 7, 2015 (not updated in 11 years: call before relying on the address or phone)
Medicaid ID
34264800 WI
Medicare enrollment
Enrolled (PECOS I20060531000211); accepts Medicare assignment
Medical or professional school
Indiana University School Of Medicine, 1983
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 110 E 5TH Ave

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

  1. Kathleen Bender, R.D.Registered Dietitian1033309315
  2. Jessica Brandt, DPTPhysical Therapist1548406416
  3. Angela Buchman, PAPhysician Assistant1114037363
  4. Noel Deep, MDInternal Medicine Physician1467470864
  5. Kristine Flowers, MDFamily Medicine Physician1669405676
  6. Gary Hegranes, MDFamily Medicine Physician1477586402

Verify Sylvia J. Dennison in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWisconsin Medical Examining Board
    Search for license 44166-20
    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 Wisconsin license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Bills Medicare through one group practice

  1. Forest County Potawatomi CommunityCrandon, WI

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

Sylvia J. Dennison among 929 psychiatry physician records in Wisconsin

Sylvia J. Dennison, MD is one of 929 psychiatry physician records with a practice address in Wisconsin. 68% 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 6% of them.

  • NPI issued2006 · 6% of these records are older, 50% newer
  • In a Medicare fileYes · 68% of these records are
  • In the CMS Doctors and Clinicians fileYes · 47% of these records are
  • Graduated1983 · median 2005 among the 439 with a school on file
  • Record last updated2015 · 52% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Psychiatry Physician providers in Wisconsin

There are 929 psychiatry physician records in Wisconsin.

The 8 psychiatry physician records with the nearest ZIP codes

  1. Shamim Anwar, MDWausau, WI 544031104916352
  2. James Billings, MDWausau, WI 544031528563400
  3. Brian Eggener, MDWausau, WI 544031598860363
  4. Charles Garvey, MDWausau, WI 544031275565632
  5. Daniel Hoppe, MDWausau, WI 544031891228607
  6. Richard Minnihan, MDWausau, WI 544031184656548
  7. Joshua Shupe, MDWausau, WI 544031033746425
  8. Gabriel Ticho, MDWausau, WI 544031992711071

Common questions

What is Sylvia J. Dennison, MD's NPI number?

Sylvia J. Dennison, MD's National Provider Identifier (NPI) is 1700838836, issued on May 17, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Sylvia J. Dennison, MD located?

The NPPES record lists a practice address at 110 E 5TH Ave, Antigo, WI, 54409. Phone: (715) 623-2351. Providers update this record themselves, so call before visiting.

How can I verify Sylvia J. Dennison, MD's license?

NPPES lists Wisconsin license number 44166-20, as entered by the provider. Search the Wisconsin Medical Examining Board at https://dsps.wi.gov/Pages/BoardsCouncils/MEB/Default.aspx. 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. 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.