Diane S. Spieker, M.D.
Obstetrics & Gynecology Physician · Phoenix, AZ
Diane S. Spieker, M.D. is an obstetrics & gynecology physician with a practice address in Phoenix, Arizona, and NPI 1851356554, issued on Apr 18, 2006. Check the license (Arizona AZ19995, as entered in NPPES) on the Arizona Medical Board; the Medicare figures below come from public CMS files.
- Name
- Diane S. Spieker
- Credential
- M.D.
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- AZ19995 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 1313 E Osborn RD, Phoenix, AZ 85014
- Phone
- (602) 265-9161
- Enumerated
- Apr 18, 2006
- Record last updated
- Mar 7, 2017 (not updated in 9 years: call before relying on the address or phone)
- Fax
- (602) 265-1823
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 803 in Arizona → Look up another NPI →
Also registered at 1313 E Osborn RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Emily Cyr, M.D.Obstetrics & Gynecology Physician1972777134
- Adrian Feng, M.D.Urology Physician1689648685
- Carol Hahn, M.D.Obstetrics & Gynecology Physician1609831486
- Marc Lato, M.D.Family Medicine Physician1386846681
- Melody Melrose, FNP-BCFamily Nurse Practitioner1366869638
- Sarah Moore, AGNP-CPrimary Care Nurse Practitioner1841648698
Verify Diane S. Spieker in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersArizona Medical Board
Search for license AZ19995Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
92% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024
14 Medicare Part D claims, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of 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: $69.29
1 payment: 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.
Diane S. Spieker among 803 obstetrics & gynecology physician records in Arizona
Diane S. Spieker, 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 2006, is newer than 14% of them.
- NPI issued2006 · 14% of these records are older, 52% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileNo · 59% of these records are
- Record last updated2017 · 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 Phoenix → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Emily Cyr, M.D.Phoenix, AZ 850141972777134
- Angela Du, MDPhoenix, AZ 850141689164022
- Carol Hahn, M.D.Phoenix, AZ 850141609831486
- Celeste Mendez, MDPhoenix, AZ 850141932370244
- Kaitlyn Oelkers, MDPhoenix, AZ 850141972182491
- Seth Stabinsky, M.D.Phoenix, AZ 850141831279413
- Suhitha VeeravelliPhoenix, AZ 850141821678053
- Kenneth Welch, MDPhoenix, AZ 850141770616351
Common questions
What is Diane S. Spieker, M.D.'s NPI number?
Diane S. Spieker, M.D.'s National Provider Identifier (NPI) is 1851356554, issued on Apr 18, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Diane S. Spieker, M.D. located?
The NPPES record lists a practice address at 1313 E Osborn RD, Phoenix, AZ, 85014. Phone: (602) 265-9161. Providers update this record themselves, so call before visiting.
How can I verify Diane S. Spieker, M.D.'s license?
NPPES lists Arizona license number AZ19995, 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 Diane S. Spieker, M.D. prescribe under Medicare Part D?
In 2024, Diane S. Spieker, M.D. had 14 Medicare Part D claims; 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.