Sigrid Gardner Williams, M.D.
Obstetrics & Gynecology Physician · Tucson, AZ
Sigrid Gardner Williams, M.D. is an obstetrics & gynecology physician with a practice address in Tucson, Arizona, and NPI 1033485511, issued on Mar 28, 2012. Check the license (Arizona 57253, as entered in NPPES) on the Arizona Medical Board; the Medicare figures below come from public CMS files.
- Name
- Sigrid Gardner Williams
- Credential
- M.D.
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- 57253 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 655 E River RD Ste 201, Tucson, AZ 85704
- Phone
- (520) 258-0585
- Enumerated
- Mar 28, 2012
- Record last updated
- Oct 3, 2024
- Fax
- (833) 449-2358
- Medicaid ID
- 462098 AZ
- Medicare enrollment
- Enrolled (PECOS I20190513000974); accepts Medicare assignment
- Medical or professional school
- University Of Arizona College Of Medicine, 2012
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 803 in Arizona → Look up another NPI →
Also registered at 655 E River RD Ste 201
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kaitlyn Lucas, APRNFamily Nurse Practitioner1326545336
- Anna Nelson-Moseke, MDObstetrics & Gynecology Physician1518196443
- Melissa Pruitt, FNP-CFamily Nurse Practitioner1700658838
- Rachel Walker, M.D.Obstetrics & Gynecology Physician1902117484
- Janet Warner, MDObstetrics & Gynecology Physician1992706774
Verify Sigrid Gardner Williams in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersArizona Medical Board
Search for license 57253Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
62% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024
63 Medicare Part D claims for 30 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D.
Most prescribed
- Estradiol17 claims
- Clobetasol Propionate11 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: $184.80
8 payments; by number, the most common kind was food and beverage; the largest payer was CooperSurgical, Inc. The 21,429 providers of this specialty with any payment received $1,030.61 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.
Bills Medicare through one group practice
- Genesis OB Gyn PLLCOro Valley, AZ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Sigrid Gardner Williams among 803 obstetrics & gynecology physician records in Arizona
Sigrid Gardner Williams, M.D. is one of 803 obstetrics & gynecology physician records with a practice address in Arizona. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 72% of them.
- NPI issued2012 · 72% of these records are older, 26% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated2012 · median 2005 among the 477 with a school on file
- Record last updated2024 · 49% 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 Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Obstetrics & Gynecology Physician providers in Arizona
There are 803 obstetrics & gynecology physician records in Arizona.
All 803 in Arizona → Every provider in Tucson → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Cassidy Augustinovich, MDTucson, AZ 857041235873670
- Marsha Brooks-Candela, MDTucson, AZ 857041548278294
- Alicia Costantino, M.D.Tucson, AZ 857041992722748
- Carol Dehasse, MDTucson, AZ 857041205811205
- Francisco Garcini, M.D.Tucson, AZ 857041447226873
- Lori Hudson, M.D.Tucson, AZ 857041104908615
- Kevin Kiley, M.D.Tucson, AZ 857041538379847
- Anna Nelson-Moseke, MDTucson, AZ 857041518196443
Common questions
What is Sigrid Gardner Williams, M.D.'s NPI number?
Sigrid Gardner Williams, M.D.'s National Provider Identifier (NPI) is 1033485511, issued on Mar 28, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Sigrid Gardner Williams, M.D. located?
The NPPES record lists a practice address at 655 E River RD Ste 201, Tucson, AZ, 85704. Phone: (520) 258-0585. Providers update this record themselves, so call before visiting.
How can I verify Sigrid Gardner Williams, M.D.'s license?
NPPES lists Arizona license number 57253, as entered by the provider. Search the Arizona Medical Board at https://www.azmd.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Sigrid Gardner Williams, M.D. prescribe under Medicare Part D?
In 2024, Sigrid Gardner Williams, M.D. had 63 Medicare Part D claims for 30 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.