Christen Greenfield, NP-C
NPI 1770716078 · Family Nurse Practitioner · Woodside, CA
Christen Greenfield, NP-C is a Family Nurse Practitioner provider in Woodside, CA (NPI 1770716078).
Provider details
- NPI number
- 1770716078
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- NP-C
- Sex
- Female
- Sole proprietor
- No
- License
- 19652 (CA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
16 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 1 distinct drug on file.
| Drug | Part D claims (2024) |
|---|---|
| Duloxetine Hcl | 24 |
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 no Part D record, 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
Registry dates
- Enumerated
- 2009-09-02
- Last updated
- 2023-06-01
- Certified
- 2023-06-01
Frequently asked questions
- What is Christen Greenfield's NPI number?
- Christen Greenfield's National Provider Identifier (NPI) is 1770716078, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Christen Greenfield's specialty?
- Christen Greenfield is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Christen Greenfield located?
- Christen Greenfield's practice location on file with NPPES is 2995 Woodside Rd Ste 300, Woodside, CA 94062-2447.
- What is Christen Greenfield's phone number?
- The practice phone number listed in the NPPES registry for Christen Greenfield is (650) 275-2326.
- Is Christen Greenfield's NPI active?
- Yes — Christen Greenfield's NPI (1770716078) is active in the NPPES registry as of the last update on 2023-06-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.