DR. MARCUS W FOSSMEYER DNP, PMHNP
NPI 1447773478
Nurse Practitioner - Psychiatric/Mental Health in Mesa, AZ

Active since July 21, 2017PECOS EnrolledAccepts Medicare Assignment
2120 W GUADALUPE RD STE 6, MESA, AZ 85202(602) 230-7373(480) 628-8577 Get Directions Write a Review

NPPES record last updated: July 10, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Jul 10, 2026, Mar 1, 2023, Jul 21, 2022 and 3 more (6 updates tracked since 2017).

About Dr. Marcus W Fossmeyer Dnp, Pmhnp NPPES

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

DR. MARCUS W FOSSMEYER DNP, PMHNP (NPI 1447773478) is an individual psychiatric/mental health provider in Mesa, Arizona, licensed in Arizona (AP10434) and active in the NPI registry since July 2017. He is enrolled in Medicare PECOS, maintains a secondary practice location in Phoenix, and is a graduate of Other (2017).

NPPES Registry Identity

NPI1447773478
Entity TypeIndividualMale
Primary Taxonomy363LP0808X
Provider Legal NameDR. MARCUS W FOSSMEYERCredential: DNP, PMHNP
Location Address2120 W GUADALUPE RD STE 6Mesa, AZ 85202-7366
Mailing Address3101 N Central Ave Ste 550Phoenix, AZ 85012-2635 · (602) 230-7373 · Fax (602) 682-7455
Fax(480) 628-8577
Sole ProprietorNo
Medical School CMSOtherGraduated 2017
Enumeration DateJuly 21, 2017
Last NPPES UpdateJuly 10, 20266 updates tracked since enumeration
NPPES CertifiedJuly 10, 2026
✔ NPI 1447773478 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 AZ · AP10434
Also ListedRegistered NurseTaxonomy 163W00000X · License RN175917 (AZ)
2120 W GUADALUPE RD STE 6, Mesa, AZ 85202

Secondary Practice Location 1

Location 13330 N 2nd St Ste 601Phoenix, AZ 85012-2395 · Phone (602) 230-7373 · Fax (602) 230-5105

Accepted Insurance

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

Dr. Marcus W Fossmeyer Dnp, Pmhnp 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 ID648543306
PECOS Enrollment IDI20170831003308
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 Reassignment

Medicare enrollment records show Marcus Fossmeyer reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Multi-Specialty
2120 W GUADALUPE RD STE 6
Mesa, AZ 85202
  • Reassigned Medicare billing, Arizona enrollment
  • 282 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

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 moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
63 services23 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 85202 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
$85.89 typical visit price
range $55.44 – $168.60
Typical copayment $21.47 (range $13.86 – $42.15)
Most-billed visit code 99203
Established Patient
$98.00 typical visit price
range $17.72 – $137.41
Typical copayment $24.50 (range $4.43 – $34.35)
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 15

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

Nurse Practitioner (Psychiatric/Mental Health)
2120 W GUADALUPE RD STE 6
MESA, AZ 85202
Nurse Practitioner (Psychiatric/Mental Health)
2120 W GUADALUPE RD STE 6
MESA, AZ 85202
Clinic/Center (Multi-Specialty)
2120 W GUADALUPE RD STE 6
MESA, AZ 85202
Counselor (Professional)
2120 W GUADALUPE RD STE 6
MESA, AZ 85202
Marriage & Family Therapist
2120 W GUADALUPE RD STE 6
MESA, AZ 85202
Counselor (Mental Health)
2120 W GUADALUPE RD STE 6
MESA, AZ 85202
Social Worker (Clinical)
2120 W GUADALUPE RD STE 6
MESA, AZ 85202
Nurse Practitioner (Psychiatric/Mental Health)
2120 W GUADALUPE RD STE 6
MESA, AZ 85202

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 Marcus Fossmeyer's NPI number?

The NPI number for Marcus Fossmeyer is 1447773478. It was assigned to this individual provider in the NPPES registry on July 21, 2017.

Where is Marcus Fossmeyer located?

Marcus Fossmeyer practices at 2120 W Guadalupe Rd Ste 6, Mesa, AZ 85202. The listed phone number is (602) 230-7373.

What is Marcus Fossmeyer's specialty?

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

Is Marcus Fossmeyer enrolled in Medicare?

Yes. Marcus Fossmeyer 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 organization bills Medicare for Marcus Fossmeyer's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Marcus Fossmeyer reassigns Medicare benefits to Denova Collaborative Health, LLC (Mesa, AZ). The 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 Marcus Fossmeyer's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Marcus Fossmeyer accept?

Health plans from Antidote Health Plan of Arizona, Inc., Blue Cross Blue Shield of Arizona, Oscar Health Plan, Inc. and UnitedHealthcare list Marcus Fossmeyer as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Marcus Fossmeyer was last updated on July 10, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 months 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.