Tamara L. Lyday, DO
Family Medicine Physician · North Fond Du Lac, WI
Tamara L. Lyday, DO is a family medicine physician with a practice address in North Fond Du Lac, Wisconsin, and NPI 1891903415, issued on May 18, 2007. Check the license (Wisconsin 48503, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Tamara L. Lyday
- Credential
- DO
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License numbers
- 48503 WI
036121487 IL
11013444A IN
Self-reported in NPPES; status is on the state search - Practice location
- 700 Park Ridge LN, North Fond Du Lac, WI 54937
- Phone
- (920) 926-7800
- Enumerated
- May 18, 2007
- Record last updated
- Jul 21, 2022
- Fax
- (920) 496-4705
- Medicaid ID
- 100004109 WI
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 3,765 in Wisconsin → Look up another NPI →
Also registered at 700 Park Ridge LN
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Tamara L. Lyday in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 48503Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
91% fewer Medicare Part D claims than the average family medicine physician in 2024
334 Medicare Part D claims for 49 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims.
Most prescribed
- Colesevelam Hcl40 claims
- Cholestyramine33 claims
- Progesterone23 claims
- Hydroxyzine Hcl17 claims
- Metronidazole13 claims
- Valacyclovir13 claims
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.
Industry payments in 2024: $539.42
2 payments; by number, the most common kind was consulting fee; the largest payer was Takeda Pharmaceuticals U.S.A., Inc. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Tamara L. Lyday among 3,765 family medicine physician records in Wisconsin
Tamara L. Lyday, DO is one of 3,765 family medicine physician records with a practice address in Wisconsin. 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 2007, is newer than 54% of them.
- NPI issued2007 · 54% of these records are older, 41% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileNo · 62% of these records are
- Record last updated2022 · 56% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
5 family medicine physician records list a practice address in North Fond Du Lac
They are 5 of the 29 NPPES records with a practice address in North Fond Du Lac, and 3,765 family medicine physician records in Wisconsin.
All 3,765 in Wisconsin → Every provider in North Fond Du Lac → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Dwayne Clark, MDN Fond Du Lac, WI 549371184695975
- Douglas Fownes, MDNorth Fond Du Lac, WI 549371487645966
- Russell Fredrickson, MDNorth Fond Du Lac, WI 549371881685261
- Daniel Johnson, DON Fond Du Lac, WI 549371801038476
- Michele Lindsey, MDFond Du Lac, WI 549371205992237
- Ramon Pajarillo, MDFond Du Lac, WI 549371609985548
- Marshall Rutherford, MDFond Du Lac, WI 549371235888629
- Elizabeth Strittmatter, DONorth Fond Du Lac, WI 549371962795823
Common questions
What is Tamara L. Lyday, DO's NPI number?
Tamara L. Lyday, DO's National Provider Identifier (NPI) is 1891903415, issued on May 18, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Tamara L. Lyday, DO located?
The NPPES record lists a practice address at 700 Park Ridge LN, North Fond Du Lac, WI, 54937. Phone: (920) 926-7800. Providers update this record themselves, so call before visiting.
How can I verify Tamara L. Lyday, DO's license?
NPPES lists Wisconsin license number 48503, 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.
How much does Tamara L. Lyday, DO prescribe under Medicare Part D?
In 2024, Tamara L. Lyday, DO had 334 Medicare Part D claims for 49 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.