Marcus Nielson, PMHNP-BC
NPI 1376257170 · Psychiatric/Mental Health Nurse Practitioner · Phoenix, AZ
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marcus Nielson, PMHNP-BC is a Psychiatric/Mental Health Nurse Practitioner provider in Phoenix, AZ (NPI 1376257170).
Provider details
- NPI number
- 1376257170
- Entity type
- Individual
- Primary specialty
- Psychiatric/Mental Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PMHNP-BC
- Sex
- Male
- Sole proprietor
- Yes
- License
- 301764 (AZ)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Nursing Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
3 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
8 documented practice locations
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$899 across 51 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (7)
- 1760 E Pecos Rd Ste 247Gilbert, AZ 85295-3214Phone: (480) 626-7584
- 1501 N Gilbert Rd Ste 206Gilbert, AZ 85234-2394Phone: (480) 626-7584
- 2046 W Riverview Auto Dr Ste 401Mesa, AZ 85201-7597Phone: (480) 626-7584
- 1860 N 95th Ln Ste 300Phoenix, AZ 85037-5074Phone: (480) 626-7584
- 4545 E Chandler Blvd Ste 308Phoenix, AZ 85048-7646Phone: (480) 626-7584
- 20950 N Tatum Blvd Ste 380Phoenix, AZ 85050-4258Phone: (480) 626-7584
- 36457 N Gantzel Rd Ste 102San Tan Valley, AZ 85140-7343Phone: (480) 626-7584
Registry dates
- Enumerated
- 2023-01-06
- Last updated
- 2026-05-29
- Certified
- 2026-05-29
Frequently asked questions
- What is Marcus Nielson's NPI number?
- Marcus Nielson's National Provider Identifier (NPI) is 1376257170, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marcus Nielson's specialty?
- Marcus Nielson is listed in the NPPES registry with a primary specialty of Psychiatric/Mental Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Marcus Nielson located?
- Marcus Nielson's practice location on file with NPPES is 2355 E Camelback Rd Ste 625, Phoenix, AZ 85016-3458.
- What is Marcus Nielson's phone number?
- The practice phone number listed in the NPPES registry for Marcus Nielson is (480) 581-8536.
- Does Marcus Nielson accept Medicare?
- Marcus Nielson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marcus Nielson's NPI active?
- Yes — Marcus Nielson's NPI (1376257170) is active in the NPPES registry as of the last update on 2026-05-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.