Patricia Rehfield, DO
Patricia Rehfield, DO is a Public Health & General Preventive Medicine Physician in Walnut Creek, CA, registered under NPI 1487693701. This provider registers 2 separate taxonomy codes, which usually means they practise across more than one recognised specialty.
Getting there
The practice address on file is 2960 CAMINO DIABLO STE 105, Walnut Creek, CA 94597. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.
Credentials and Medicare
| Licence | State | Specialty |
|---|---|---|
| 20A10854 | CA | Public Health & General Preventive… primary |
| 5101007713 | MI | Family Medicine Physician |
| 20A10854 | CA | Family Medicine Physician |
| 5101007713 | MI | Public Health & General Preventive… |
Licences are recorded in 2 states: CA, MI. Providers licensed in several states often practise near a state border or deliver telehealth across state lines.
- Status
- Approved
- Provider type
- Practitioner - Family Practice
- PAC ID
- 2062440357
Medicare enrolment is recorded as approved under the provider type Practitioner - Family Practice. This means the provider is enrolled to bill Medicare, though it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.
Licensed in 2 states
This provider holds licences in 2 states: California and Michigan. The practice address on file is in Walnut Creek, CA, but a licence in another state usually means they see patients there too — either at a second location or by telehealth. If the address above is far from you, it is worth calling to ask whether they practise closer to where you live.
- Licence
- 20A10854
- Specialty
- Public Health & General Preventive…
Licence numbers are self-reported to NPPES at registration. They do not confirm a licence is currently active, in good standing, or valid for the specialty shown — only the state board can tell you that, which is why we link to each one.
What Public Health & General Preventive Medicine covers
Public health and general preventive medicine focuses on promoting health, preventing disease, and managing the health of communities and defined populations. These practitioners combine population-based public health skills with knowledge of primary, secondary, and tertiary prevention-oriented clinical practice in a wide variety of settings. NUCC Health Care Provider Taxonomy, code 2083P0901X
All registered taxonomy codes
This provider registers 4 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 2083P0901X | Public Health & General Preventive Medicine Physician Public Health & General Preventive Medicine | 20A10854 | CA | primary |
| 207Q00000X | Family Medicine Physician | 5101007713 | MI | |
| 207Q00000X | Family Medicine Physician | 20A10854 | CA | |
| 2083P0901X | Public Health & General Preventive Medicine Physician Public Health & General Preventive Medicine | 5101007713 | MI |
The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.
Full NPPES record
An NPI-1 identifies a single person. It stays with the clinician for life, even if they move practice or change state, which is why the address on file can lag behind where they actually work today.
| NPI | 1487693701 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Jun 5, 2006 |
| Last updated | Nov 16, 2022 |
| Status | Active |
| Sole proprietor | No |
| Credential | DO |
| Practice address |
2960 CAMINO DIABLO STE 105 Walnut Creek, CA 94597 (800) 892-2695 |
| Other identifiers |
519693
(MI) |
Number check
How the check works, step by step
Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.
| Digit | 8 | 0 | 8 | 4 | 0 | 1 | 4 | 8 | 7 | 6 | 9 | 3 | 7 | 0 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 4 | 7 | 7 | 3 | 9 | 6 | 7 | 0 |
Sum = 69 · next multiple of 10 = 70 · check digit = 1 · actual last digit = 1
A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.