Alison Slack, M.D.
Obstetrics & Gynecology Physician · Fremont, CA
Alison Slack, M.D. is an obstetrics & gynecology physician with a practice address in Fremont, California, and NPI 1194787713, issued on Apr 6, 2006. Check the license (California A85884, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Alison Slack
- Credential
- M.D.
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- A85884 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2299 Mowry Ave, Fremont, CA 94538
- Phone
- (510) 796-7057
- Enumerated
- Apr 6, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (510) 796-5198
- Medicare enrollment
- Enrolled (PECOS I20040814000251); accepts Medicare assignment
- Medical or professional school
- University Of Texas Southwestern Medical School At Dallas, 2000
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 5,088 in California → Look up another NPI →
Also registered at 2299 Mowry Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Margie Aleman-Martin, MDObstetrics & Gynecology Physician1932180494
- Siobhan Calhoun, MDObstetrics & Gynecology Physician1396726295
- Jing Dai, M.D.Obstetrics & Gynecology Physician1609904085
- Elizabeth Kurkjian, MDObstetrics & Gynecology Physician1598727414
- Victoria Leiphart, M.D.Gynecology Physician1912976754
- Jelriza Claire Mansouri, M.D.Obstetrics & Gynecology Physician1184762015
Verify Alison Slack in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A85884Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
50% more Medicare Part D claims than the average obstetrics & gynecology physician in 2024
247 Medicare Part D claims for 65 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. Brand-name drugs were 25% of claims.
Most prescribed
- Estradiol58 claims
- Progesterone34 claims
- Estradiol (Twice Weekly)23 claims
- Estradiol (Once Weekly)20 claims
- Yuvafem15 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
- Sutter Valley Medical FoundationRoseville, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Alison Slack among 5,088 obstetrics & gynecology physician records in California
Alison Slack, M.D. is one of 5,088 obstetrics & gynecology physician records with a practice address in California. 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 5% of them.
- NPI issued2006 · 5% of these records are older, 52% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 53% of these records are
- Graduated2000 · median 2004 among the 2,700 with a school on file
- Record last updated2007 · 64% 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 California 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 California
There are 5,088 obstetrics & gynecology physician records in California.
All 5,088 in California → Every provider in Fremont → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Margie Aleman-Martin, MDFremont, CA 945381932180494
- Gene Barrie, MDFremont, CA 945381851369649
- Stacey Barrie, MDFremont, CA 945381841268646
- Irene Beissner, MDFremont, CA 945381922100908
- Siobhan Calhoun, MDFremont, CA 945381396726295
- Craig Johnson, MDFremont, CA 945381871561670
- Shakira Karipineni, MDFremont, CA 945381780684761
- Elizabeth Kurkjian, MDFremont, CA 945381598727414
Common questions
What is Alison Slack, M.D.'s NPI number?
Alison Slack, M.D.'s National Provider Identifier (NPI) is 1194787713, issued on Apr 6, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Alison Slack, M.D. located?
The NPPES record lists a practice address at 2299 Mowry Ave, Fremont, CA, 94538. Phone: (510) 796-7057. Providers update this record themselves, so call before visiting.
How can I verify Alison Slack, M.D.'s license?
NPPES lists California license number A85884, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Alison Slack, M.D. prescribe under Medicare Part D?
In 2024, Alison Slack, M.D. had 247 Medicare Part D claims for 65 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.