MOLLY WILLIS
NPI 1275921264
Nurse Practitioner - Psychiatric/Mental Health in San Diego, CA

Active since December 30, 2014PECOS EnrolledAccepts Medicare Assignment
140 ARBOR DR, SAN DIEGO, CA 92103(619) 543-7795 Get Directions Write a Review

NPPES record last updated: December 13, 2016. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Dec 13, 2016, Oct 24, 2016, Oct 18, 2016 (3 updates tracked since 2016).

About Molly Willis NPPES

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

MOLLY WILLIS (NPI 1275921264) is an individual psychiatric/mental health provider in San Diego, California, licensed in California (95004719) and active in the NPI registry since December 2014. She is enrolled in Medicare PECOS and is a graduate of Brody School Of Medicine At East Carolina University (2013).

NPPES Registry Identity

NPI1275921264
Entity TypeIndividualFemale
Primary Taxonomy363LP0808X
Provider Legal NameMOLLY WILLIS
Location Address140 ARBOR DRSan Diego, CA 92103-2007
Mailing Address140 Arbor DrSan Diego, CA 92103-2007 · (619) 543-6699
Sole ProprietorNo
Medical School CMSBrody School Of Medicine At East Carolina UniversityGraduated 2013
Enumeration DateDecember 30, 2014
Last NPPES UpdateDecember 13, 20163 updates tracked since enumeration
✔ NPI 1275921264 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyNurse Practitioner · Psychiatric/Mental HealthPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LP0808X
License✔ Licensed in CA · 95004719
Also ListedRegistered NurseTaxonomy 163W00000X · License 95042597 (CA)
140 ARBOR DR, San Diego, CA 92103

Other Identifiers 2

Other95042597CA · California Board Of Registered Nursing
Other95004719CA · California Board Of Registered Nursing

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Molly Willis 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 ID1355623430
PECOS Enrollment IDI20170125001549
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.

Medicare Billing Reassignments

3

Medicare enrollment records show Molly Willis reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Psychiatry
200 W ARBOR DR
San Diego, CA 92103
  • Reassigned Medicare billing, California enrollment
  • 220 clinicians in this Medicare group
Community/Behavioral Health
545 LAUREL ST
San Diego, CA 92101
  • Reassigned Medicare billing, California enrollment
  • 147 clinicians in this Medicare group
Federally Qualified Health Center (FQHC)
1023 E FLORIDA AVE
Hemet, CA 92543
  • Reassigned Medicare billing, California enrollment
  • 135 clinicians in this Medicare group

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 2

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.

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
75 services30 patients
Residence visit for established patient with straightforward medical decision making, per day, if using time, at least 15 minutes 99347
An established patient home visit is a service where a healthcare professional visits your home for a 15-minute check-up. It's designed for patients who have previously seen the professional. The visit may include basic health assessments and discussions about your ongoing care.
46 services11 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92103 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.

Other Providers at the Same Location NPPES 20

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

Student in an Organized Health Care Education/Training Program
140 ARBOR DR
SAN DIEGO, CA 92103
Psychiatry & Neurology (Psychiatry)
140 ARBOR DR, #0851
SAN DIEGO, CA 92103
Student in an Organized Health Care Education/Training Program
140 ARBOR DR, UCSD OUTPATIENT SERVICES
SAN DIEGO, CA 92103
Counselor
140 ARBOR DR
SAN DIEGO, CA 92103
Counselor (Mental Health)
140 ARBOR DR
SAN DIEGO, CA 92103
Psychologist (Clinical)
140 ARBOR DR
SAN DIEGO, CA 92103
Student in an Organized Health Care Education/Training Program
140 ARBOR DR, UCSD OUTPATIENT PSYCHIATRIC SERVICES
SAN DIEGO, CA 92103
Social Worker (Clinical)
140 ARBOR DR
SAN DIEGO, CA 92103

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 Molly Willis's NPI number?

The NPI number for Molly Willis is 1275921264. It was assigned to this individual provider in the NPPES registry on December 30, 2014.

Where is Molly Willis located?

Molly Willis practices at 140 Arbor Dr, San Diego, CA 92103. The listed phone number is (619) 543-7795.

What is Molly Willis's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Psychiatric/Mental Health, with taxonomy code 363LP0808X.

Is Molly Willis enrolled in Medicare?

Yes. Molly Willis 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.

Which organizations bill Medicare for Molly Willis's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Molly Willis reassigns Medicare benefits to 3 organizations: Regents Of The University Of California (San Diego, CA), Community Research Foundation Inc (San Diego, CA) and Clinicas De Salud Del Pueblo Inc. (Hemet, CA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Molly Willis's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Molly Willis was last updated on December 13, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.