Jessica Kassis, M.D.
NPI 1033394424 · Obstetrics & Gynecology Physician · Portola Valley, CA
Jessica Kassis, M.D. is a Obstetrics & Gynecology Physician provider in Portola Valley, CA (NPI 1033394424).
Provider details
- NPI number
- 1033394424
- Entity type
- Individual
- Primary specialty
- Obstetrics & Gynecology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- A105126 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
18 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
68 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Cervical Or Vaginal Cancer Screening; Pelvic and Clinical Breast ExaminationG0101 | 37 | $48 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 20 | $110 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 11 | $154 |
Typical Medicare-allowed amounts for these services range $48–$154 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 6 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Estradiol | 54 | 19 |
| Estradiolbrand: Estradiol (twice Weekly) | 30 | — |
| Progesterone, Micronizedbrand: Progesterone | 26 | — |
| Estradiolbrand: Dotti | 26 | — |
| Estradiolbrand: Estradiol (once Weekly) | 25 | — |
| Estradiolbrand: Estring | 21 | — |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means , never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Additional practice locations (1)
- 301 Industrial RdSan Carlos, CA 94070-2603Phone: (650) 596-4240Fax: (650) 551-7038
Registry dates
- Enumerated
- 2008-01-03
- Last updated
- 2025-04-14
- Certified
- 2025-04-14
Frequently asked questions
- What is Jessica Kassis's NPI number?
- Jessica Kassis's National Provider Identifier (NPI) is 1033394424, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jessica Kassis's specialty?
- Jessica Kassis is listed in the NPPES registry with a primary specialty of Obstetrics & Gynecology Physician (Allopathic & Osteopathic Physicians).
- Where is Jessica Kassis located?
- Jessica Kassis's practice location on file with NPPES is 150 Portola Rd Ste a, Portola Valley, CA 94028-7852.
- What is Jessica Kassis's phone number?
- The practice phone number listed in the NPPES registry for Jessica Kassis is (650) 585-3272.
- Is Jessica Kassis's NPI active?
- Yes — Jessica Kassis's NPI (1033394424) is active in the NPPES registry as of the last update on 2025-04-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.