Lauren Allison Dennisuk Westerfield, M.D.
Obstetrics & Gynecology Physician · Ann Arbor, MI
Lauren Allison Dennisuk Westerfield, M.D. is an obstetrics & gynecology physician with a practice address in Ann Arbor, Michigan, and NPI 1053723650, issued on May 30, 2014. Check the license (Michigan 4301504645, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- Lauren Allison Dennisuk Westerfield
- Credential
- M.D.
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License numbers
- 4301504645 MI
35.133690 OH
Self-reported in NPPES; status is on the state search - Practice location
- 4200 Whitehall Dr Ste 330, Ann Arbor, MI 48105
- Phone
- (734) 434-0477
- Enumerated
- May 30, 2014
- Record last updated
- Aug 6, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (734) 434-6240
- Medicare enrollment
- Enrolled (PECOS I20210630003558); accepts Medicare assignment
- Medical or professional school
- University Of Michigan Medical School, 2014
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 1,776 in Michigan → Look up another NPI →
Also registered at 4200 Whitehall Dr Ste 330
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Colleen Bates, WHNP-BCWomen's Health Nurse Practitioner1326612425
- Meghan Bugosh, MDObstetrics & Gynecology Physician1760864482
- Lisa Desmond, MDObstetrics & Gynecology Physician1063919298
- Jennifer O'NeillObstetrics & Gynecology Physician1437545431
- Alia Shah, MDObstetrics & Gynecology Physician1609360015
- Maureen Westfall, WHNPObstetrics & Gynecology Nurse Practitioner1255607032
Verify Lauren Allison Dennisuk Westerfield in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 4301504645Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
38% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024
103 Medicare Part D claims for 39 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. Brand-name drugs were 18% of claims.
Most prescribed
- Estradiol31 claims
- Premarin15 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.
Bills Medicare through one group practice
- Iha Health Services CorporationAnn Arbor, MI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Lauren Allison Dennisuk Westerfield among 1,776 obstetrics & gynecology physician records in Michigan
Lauren Allison Dennisuk Westerfield, M.D. is one of 1,776 obstetrics & gynecology physician records with a practice address in Michigan. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2014, is newer than 66% of them.
- NPI issued2014 · 66% of these records are older, 31% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 56% of these records are
- Graduated2014 · median 2007 among the 1,003 with a school on file
- Record last updated2021 · 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 207V00000X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
143 obstetrics & gynecology physician records list a practice address in Ann Arbor
They are 143 of the 15,616 NPPES records with a practice address in Ann Arbor, and 1,776 obstetrics & gynecology physician records in Michigan.
All 1,776 in Michigan → Every provider in Ann Arbor → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Meghan Bugosh, MDAnn Arbor, MI 481051760864482
- Lisa Desmond, MDAnn Arbor, MI 481051063919298
- Stephen Hickner, MDAnn Arbor, MI 481051386699098
- Mangaladevi Menon, M.D.Ann Arbor, MI 481051285646356
- Stephanie Menon, MDAnn Arbor, MI 481051235440348
- Jennifer O'NeillAnn Arbor, MI 481051437545431
- Alia Shah, MDAnn Arbor, MI 481051609360015
- Katherine Zdrada, M.D.Ann Arbor, MI 481051912296138
Common questions
What is Lauren Allison Dennisuk Westerfield, M.D.'s NPI number?
Lauren Allison Dennisuk Westerfield, M.D.'s National Provider Identifier (NPI) is 1053723650, issued on May 30, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Lauren Allison Dennisuk Westerfield, M.D. located?
The NPPES record lists a practice address at 4200 Whitehall Dr Ste 330, Ann Arbor, MI, 48105. Phone: (734) 434-0477. Providers update this record themselves, so call before visiting.
How can I verify Lauren Allison Dennisuk Westerfield, M.D.'s license?
NPPES lists Michigan license number 4301504645, as entered by the provider. Search the Michigan Board of Medicine (LARA) at https://aca-prod.accela.com/MILARA/GeneralProperty/PropertyLookUp.aspx?isLicensee=Y&TabName=APO. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Lauren Allison Dennisuk Westerfield, M.D. prescribe under Medicare Part D?
In 2024, Lauren Allison Dennisuk Westerfield, M.D. had 103 Medicare Part D claims for 39 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. 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.