Cynthia Cork, M.D.
NPI 1134229602 · Obstetrics & Gynecology Physician · Fountain Valley, CA
Enrolled with Medicare as Practitioner - Obstetrics/Gynecology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Cynthia Cork, M.D. is a Obstetrics & Gynecology Physician provider in Fountain Valley, CA (NPI 1134229602).
Provider details
- NPI number
- 1134229602
- Entity type
- Individual
- Primary specialty
- Obstetrics & Gynecology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- G053015 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
969 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Urinalysis, Manual Test81002 | 190 | $3 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 183 | $99 |
| Colorectal Cancer Screening; Fecal Occult Blood Test, Immunoassay, 1-3 SimultaneousG0328 | 151 | $18 |
| Cervical Or Vaginal Cancer Screening; Pelvic and Clinical Breast ExaminationG0101 | 109 | $42 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 76 | $139 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 70 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 12 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Estradiol | 131 | 58 |
| Alendronate Sodium | 87 | 28 |
| Clobetasol Propionate | 40 | 23 |
| Valacyclovir Hclbrand: Valacyclovir | 34 | 12 |
| Estradiolbrand: Yuvafem | 28 | 12 |
| Levothyroxine Sodium | 21 | — |
| Progesterone, Micronizedbrand: Progesterone | 17 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$26 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-09-25
- Last updated
- 2013-03-14
Frequently asked questions
- What is Cynthia Cork's NPI number?
- Cynthia Cork's National Provider Identifier (NPI) is 1134229602, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Cynthia Cork's specialty?
- Cynthia Cork is listed in the NPPES registry with a primary specialty of Obstetrics & Gynecology Physician (Allopathic & Osteopathic Physicians).
- Where is Cynthia Cork located?
- Cynthia Cork's practice location on file with NPPES is 11180 Warner Avenue, Fountain Valley, CA 92708.
- What is Cynthia Cork's phone number?
- The practice phone number listed in the NPPES registry for Cynthia Cork is (714) 556-0536.
- Does Cynthia Cork accept Medicare?
- Cynthia Cork is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Cynthia Cork's NPI active?
- Yes — Cynthia Cork's NPI (1134229602) is active in the NPPES registry as of the last update on 2013-03-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.