Mariana C. Locke, FNP-C
Nurse Practitioner · Sacramento, CA
Mariana C. Locke, FNP-C is a nurse practitioner with a practice address in Sacramento, California, and NPI 1649482894, issued on May 3, 2007. Check the license (California 1267, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Mariana C. Locke
- Credential
- FNP-C
- Primary taxonomy
- Nurse Practitioner 363L00000X
- License number
- 1267 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1750 Wright St, Sacramento, CA 95825
- Phone
- (855) 354-2242
- Enumerated
- May 3, 2007
- Record last updated
- Jun 2, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (916) 550-5003
- Entity
- Type 1 · individual
8 nearest nurse practitioner records → All 8,223 in California → Look up another NPI →
Also registered at 1750 Wright St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Mariana C. Locke in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 1267Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
85% fewer Medicare Part D claims than the average nurse practitioner in 2024
164 Medicare Part D claims for 58 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D.
Most prescribed
- Lisinopril18 claims
- Amlodipine Besylate16 claims
- Metformin Hcl12 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Mariana C. Locke among 8,223 nurse practitioner records in California
Mariana C. Locke, FNP-C is one of 8,223 nurse practitioner records with a practice address in California. 65% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 18% of them.
- NPI issued2007 · 18% of these records are older, 73% newer
- In a Medicare fileYes · 65% of these records are
- In the CMS Doctors and Clinicians fileNo · 42% of these records are
- Record last updated2018 · 45% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363L00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Nurse Practitioner providers in California
There are 8,223 nurse practitioner records in California.
All 8,223 in California → Every provider in Sacramento → Nurse Practitioner nationwide →
The 8 nurse practitioner records with the nearest ZIP codes
- Meghan AndersonSacramento, CA 958251790935419
- Steven Augustine, NPSacramento, CA 958251245697713
- Nancy Bender, FNPSacramento, CA 958251700864394
- Michael BergSacramento, CA 958251548326978
- Joel Bresolin, N.P.Sacramento, CA 958251780667360
- Vladimir Bulanin, NPSacramento, CA 958251619141710
- Nancy Derthick, N.P.Sacramento, CA 958251164626644
- Tracey Fremd, NPSacramento, CA 958251801907159
Common questions
What is Mariana C. Locke, FNP-C's NPI number?
Mariana C. Locke, FNP-C's National Provider Identifier (NPI) is 1649482894, issued on May 3, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Mariana C. Locke, FNP-C located?
The NPPES record lists a practice address at 1750 Wright St, Sacramento, CA, 95825. Phone: (855) 354-2242. Providers update this record themselves, so call before visiting.
How can I verify Mariana C. Locke, FNP-C's license?
NPPES lists California license number 1267, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Mariana C. Locke, FNP-C prescribe under Medicare Part D?
In 2024, Mariana C. Locke, FNP-C had 164 Medicare Part D claims for 58 beneficiaries; the average among nurse practitioner prescribers was 1,109. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.