Mary Wyckoff, PHD, ACNP, BC, NNP
Mary Wyckoff, PHD, ACNP, BC, NNP is an Acute Care Nurse Practitioner in Sacramento, CA, registered under NPI 1952457467. This provider registers 4 separate taxonomy codes, which usually means they practise across more than one recognised specialty.
Getting there
The practice address on file is 2315 STOCKTON AVE, Sacramento, CA 95817. 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 |
|---|---|---|
| 21525 | CA | Acute Care Nurse Practitioner primary |
| 1703712 | FL | Acute Care Nurse Practitioner |
| 21525 | CA | Family Nurse Practitioner |
| 21525 | CA | Critical Care Neonatal Nurse Practitioner |
| 3812 | CA | Acute Care Clinical Nurse Specialist |
Licences are recorded in 2 states: CA, FL. Providers licensed in several states often practise near a state border or deliver telehealth across state lines.
This NPI does not appear in the PECOS Medicare enrolment file. Providers who do not bill Medicare — or who bill only through a group's enrolment — will not appear here. It is not a sign of any problem with the registration.
Licensed in 2 states
This provider holds licences in 2 states: California and Florida. The practice address on file is in Sacramento, 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
- 21525
- Specialty
- Acute Care Nurse Practitioner
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 Acute Care covers
Definition to come... NUCC Health Care Provider Taxonomy, code 363LA2100X
All registered taxonomy codes
This provider registers 5 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 363LA2100X | Acute Care Nurse Practitioner Acute Care | 21525 | CA | primary |
| 363LA2100X | Acute Care Nurse Practitioner Acute Care | 1703712 | FL | |
| 363LF0000X | Family Nurse Practitioner Family | 21525 | CA | |
| 363LN0005X | Critical Care Neonatal Nurse Practitioner Neonatal, Critical Care | 21525 | CA | |
| 364SA2100X | Acute Care Clinical Nurse Specialist Acute Care | 3812 | CA |
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 | 1952457467 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Jan 26, 2007 |
| Last updated | Oct 29, 2012 |
| Status | Active |
| Sole proprietor | No |
| Credential | PHD, ACNP, BC, NNP |
| Practice address |
2315 STOCKTON AVE Sacramento, CA 95817 (916) 703-3395 |
| Mailing address |
5373 MONALEE AVE Sacramento, CA 95819 |
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 | 9 | 5 | 2 | 4 | 5 | 7 | 4 | 6 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 9 | 1 | 2 | 8 | 5 | 5 | 4 | 3 |
Sum = 63 · next multiple of 10 = 70 · check digit = 7 · actual last digit = 7
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.