Emma Winfield, N.P
NPI 1033458161 · Family Nurse Practitioner · San Ramon, CA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Emma Winfield, N.P is a Family Nurse Practitioner provider in San Ramon, CA (NPI 1033458161).
Provider details
- NPI number
- 1033458161
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- N.P
- Sex
- Female
- Sole proprietor
- Yes
- License
- 22756 (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 tenure28% of score
13 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
374 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 164 | $111 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 80 | $155 |
| Advance Care Planning, First 30 Minutes99497 | 66 | $70 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 | 37 | $189 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 27 | $78 |
Typical Medicare-allowed amounts for these services range $70–$189 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, 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 · 14 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 168 | 28 |
| Morphine Sulfatebrand: Morphine Sulfate Er | 67 | — |
| Gabapentin | 66 | 14 |
| Morphine Sulfate | 62 | 15 |
| Methadone Hcl | 58 | 13 |
| Trazodone Hcl | 41 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2013-02-08
- Last updated
- 2022-01-20
- Certified
- 2022-01-20
Frequently asked questions
- What is Emma Winfield's NPI number?
- Emma Winfield's National Provider Identifier (NPI) is 1033458161, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Emma Winfield's specialty?
- Emma Winfield is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Emma Winfield located?
- Emma Winfield's practice location on file with NPPES is 6001 Norris Canyon Rd, San Ramon, CA 94583-5400.
- What is Emma Winfield's phone number?
- The practice phone number listed in the NPPES registry for Emma Winfield is (925) 275-9200.
- Does Emma Winfield accept Medicare?
- Emma Winfield is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Emma Winfield's NPI active?
- Yes — Emma Winfield's NPI (1033458161) is active in the NPPES registry as of the last update on 2022-01-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.