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MARTI L. WILLEY N.P.
NPI 1144574062
Nurse Practitioner in Encinitas, CA

Active since October 30, 2012PECOS EnrolledAccepts Medicare Assignment
100/100
CMS Quality Rating
326 SANTA FE DR STE 105, ENCINITAS, CA 92024(760) 452-3340(760) 452-3344 Get Directions Write a Review

NPPES record last updated: December 22, 2025. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Dec 22, 2025, Dec 2, 2025, Jul 22, 2024 and 2 more (5 updates tracked since 2020).

About Marti L. Willey N.p. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MARTI L. WILLEY N.P. (NPI 1144574062) is an individual nurse practitioner in Encinitas, California, licensed in California (22548) and active in the NPI registry since October 2012. She is enrolled in Medicare PECOS, maintains 7 additional practice locations, and is a graduate of Other (2012).

NPPES Registry Identity

NPI1144574062
Entity TypeIndividualFemale
Primary Taxonomy363L00000X
Provider Legal NameMARTI L. WILLEYCredential: N.P.
Location Address326 SANTA FE DR STE 105Encinitas, CA 92024-5157
Mailing AddressFile 53726Los Angeles, CA 90074-0001 · (800) 926-8273 · Fax (888) 539-8781
Phone(760) 452-3340
Fax(760) 452-3344
Sole ProprietorYes
Medical School CMSOtherGraduated 2012
Enumeration DateOctober 30, 2012
Last NPPES UpdateDecember 22, 20255 updates tracked since enumeration
NPPES CertifiedDecember 22, 2025
✔ NPI 1144574062 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363L00000X
License✔ Licensed in CA · 22548
Definition
(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.
326 SANTA FE DR STE 105, Encinitas, CA 92024
Open in Google Maps ↗

Secondary Practice Locations 7

Location 1200 W Arbor DrSan Diego, CA 92103-9000 · Phone (800) 926-8273 · Fax (888) 539-8781
Location 23855 Health Sciences DrLA Jolla, CA 92093-1375 · Phone (800) 926-8273 · Fax (888) 539-8781
Location 34250 1st AveSan Diego, CA 92103 · Phone (800) 926-8273 · Fax (888) 539-8781
Location 4910 Sycamore AveVista, CA 92081-7832 · Phone (800) 926-8273 · Fax (888) 539-8781
Location 528078 Baxter Rd Ste 140Murrieta, CA 92563-1403 · Phone (760) 733-9191
Location 616950 Via TazonSan Diego, CA 92127-1607 · Phone (800) 926-8273 · Fax (888) 539-8781
Location 71200 Garden View RdEncinitas, CA 92024-2477 · Phone (800) 926-8273 · Fax (888) 539-8781

Other Identifiers 4

OtherGT229ZCA · Medicare Ptan
Other2012003305CA · Ancc National Certification
Other22548CA · Nurse Practitioner Medical License
Other588647CA · Rn Medical License

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Marti L. Willey N.p. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID9830341478
PECOS Enrollment IDI20121206000328
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 7

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Injection, denosumab, 1 mg J0897
Denosumab is a medication given via injection to strengthen your bones. It works by slowing down the cells that break down bone, improving bone density and reducing the risk of fractures. It's often used for osteoporosis treatment.
1,140 services12 patients
Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212
This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.
149 services109 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
84 services63 patients
Injection of drug or substance under skin or into muscle 96372
This procedure involves administering medication directly under the skin or into a muscle. A small needle is used to inject the drug, allowing it to be absorbed quickly into the bloodstream. It's a common method for delivering a variety of medications.
57 services43 patients
Insertion of needle into vein for collection of blood sample 36415
This procedure involves inserting a small needle into a vein, typically in your arm, to collect a blood sample. It's a quick and simple process to help diagnose or monitor health conditions. You may feel a small prick, but discomfort is minimal.
18 services16 patients
Administration of chemotherapy into vein, 1 hour or less 96413
Chemotherapy is a treatment that uses drugs to destroy cancer cells. When administered into a vein, it's often through an IV. This procedure usually lasts 1 hour or less. You may feel a slight pinch as the needle is inserted, but it's generally painless.
12 services11 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92024 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$94.87 typical visit price
range $62.10 – $184.71
Typical copayment $23.71 (range $15.52 – $46.17)
Most-billed visit code 99203
Established Patient
$108.42 typical visit price
range $20.62 – $151.42
Typical copayment $27.10 (range $5.15 – $37.85)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

100/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Promoting Interoperability100
Improvement Activities40

Other Providers at the Same Location NPPES 4

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

ALBERTO BESSUDO M.D.
Internal Medicine (Hematology & Oncology)
326 SANTA FE DR STE 105
ENCINITAS, CA 92024
San Diego County (760) 452-3340
LAURIE FRAKES M.D.
Internal Medicine (Hematology & Oncology)
326 SANTA FE DR STE 105
ENCINITAS, CA 92024
San Diego County (760) 452-3340
DR. JOHN PHILIP SCHWERKOSKE MD
Internal Medicine (Hematology & Oncology)
326 SANTA FE DR STE 105
ENCINITAS, CA 92024
San Diego County (760) 452-3340
BARBARA MAE MADRIAGA FNP
Nurse Practitioner (Family)
326 SANTA FE DR STE 105
ENCINITAS, CA 92024
San Diego County (760) 452-3340

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Marti Willey's NPI number?

The NPI number for Marti Willey is 1144574062. It was assigned to this individual provider in the NPPES registry on October 30, 2012.

Where is Marti Willey located?

Marti Willey practices at 326 Santa Fe Dr Ste 105, Encinitas, CA 92024. The listed phone number is (760) 452-3340.

What is Marti Willey's specialty?

The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.

Is Marti Willey enrolled in Medicare?

Yes. Marti Willey is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

When was this NPI record last updated?

The NPPES record for Marti Willey was last updated on December 22, 2025. NPI Profile syncs with the weekly NPPES data releases published by CMS.