Nadine Graven, MD
NPI 1295899847 · Obstetrics & Gynecology Physician · Campbell, CA
Enrolled with Medicare as Practitioner - Obstetrics/Gynecology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Nadine Graven, MD is a Obstetrics & Gynecology Physician provider in Campbell, CA (NPI 1295899847).
Provider details
- NPI number
- 1295899847
- Entity type
- Individual
- Primary specialty
- Obstetrics & Gynecology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- Yes
- License
- G079068 (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
78 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 35 | $97 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 28 | $137 |
| Ultrasound Scan of Uterus, Ovaries, Tubes, Cervix and Pelvic Area Through Vagina76830 | 15 | $135 |
Typical Medicare-allowed amounts for these services range $97–$137 (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 · 9 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Estradiol | 109 | 48 |
| Estradiolbrand: Estradiol (twice Weekly) | 59 | 19 |
| Progesterone, Micronizedbrand: Progesterone | 58 | 23 |
| Mirabegronbrand: Myrbetriq | 23 | — |
| Estradiolbrand: Imvexxy | 18 | — |
| Medroxyprogesterone Acetate | 18 | — |
| Tolterodine Tartratebrand: Tolterodine Tartrate Er | 18 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$488 across 33 records (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
- 2006-12-20
- Last updated
- 2012-04-09
Frequently asked questions
- What is Nadine Graven's NPI number?
- Nadine Graven's National Provider Identifier (NPI) is 1295899847, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nadine Graven's specialty?
- Nadine Graven is listed in the NPPES registry with a primary specialty of Obstetrics & Gynecology Physician (Allopathic & Osteopathic Physicians).
- Where is Nadine Graven located?
- Nadine Graven's practice location on file with NPPES is 476 E Campbell Avenue, Campbell, CA 95008.
- What is Nadine Graven's phone number?
- The practice phone number listed in the NPPES registry for Nadine Graven is (408) 378-1888.
- Does Nadine Graven accept Medicare?
- Nadine Graven is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Nadine Graven's NPI active?
- Yes — Nadine Graven's NPI (1295899847) is active in the NPPES registry as of the last update on 2012-04-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.