ALYSSA MARES MSN, APRN-CNP
NPI 1356986947
Nurse Practitioner in Santa Fe, NM

Q: What is Alyssa Mares's NPI number?

The NPI number for Alyssa Mares is 1356986947. It was assigned to this individual provider in the NPPES registry on November 7, 2019.

Q: What is Alyssa Mares's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Alyssa Mares was last updated on April 27, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.

Active since November 07, 2019PECOS EnrolledAccepts Medicare Assignment

87.86/100

CMS Quality Rating

1421 LUISA ST STE I, SANTA FE, NM 87505(505) 982-8338 Get Directions Write a Review

NPPES record last updated: April 27, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Apr 27, 2026, Nov 7, 2019 (2 updates tracked since 2019).

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About Alyssa Mares Msn, Aprn-cnp NPPES

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

ALYSSA MARES MSN, APRN-CNP (NPI 1356986947) is an individual nurse practitioner in Santa Fe, New Mexico, licensed in New Mexico (58005) and active in the NPI registry since November 2019. She is enrolled in Medicare PECOS, is affiliated with Christus St Vincent Regional Medical Center, and is a graduate of Other (2019).

NPPES Registry Identity

NPI1356986947

Entity TypeIndividualFemale

Primary Taxonomy363L00000X

Provider Legal NameALYSSA MARESCredential: MSN, APRN-CNP

Location Address1421 LUISA ST STE ISanta Fe, NM 87505-4073

Mailing Address2 Nacimiento PeakSanta Fe, NM 87508-1438

Phone(505) 982-8338

Sole ProprietorNo

Medical School CMSOtherGraduated 2019

Enumeration DateNovember 7, 2019

Last NPPES UpdateApril 27, 20262 updates tracked since enumeration

NPPES CertifiedApril 27, 2026

✔ NPI 1356986947 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 NM · 58005

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.

1421 LUISA ST STE I, Santa Fe, NM 87505

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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

Alyssa Mares Msn, Aprn-cnp 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 ID446684708

PECOS Enrollment IDI20191220000408

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 Alyssa Mares reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

John S Caskey M.D., LLC

Same address

Primary Care

1421 LUISA ST, UNIT I
Santa Fe, NM 87505

Reassigned Medicare billing, New Mexico enrollment
Medicare enrollment name: John S Caskey MD LLC
5 clinicians in this Medicare group

NPI 1962537027 (505) 982-8338

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 8

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 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.

541 services291 patients

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.

260 services132 patients

Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit G0439

An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.

110 services110 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.

102 services75 patients

Administration of influenza virus vaccine G0008

The administration of the influenza virus vaccine, also known as the flu shot, is a simple procedure to protect against the flu. A healthcare provider injects a small dose of the vaccine into your arm. This stimulates your immune system to produce antibodies, which will help your body fight off the flu if exposed.

83 services83 patients

Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus 87426

An immunoassay test for severe acute respiratory syndrome coronavirus is a diagnostic tool. It uses your body's immune response to detect the presence of the virus. It involves taking a sample, usually from your nose or throat, which is then analyzed in a lab for signs of the virus.

38 services35 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Christus St Vincent Regional Medical Center

Acute Care Hospitals · Santa Fe, NM

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number320002

Location455 St Michael's DriveSanta Fe, NM 87505 · Santa Fe County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 87505 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

$84.79 typical visit price

range $54.26 – $166.80

Typical copayment $21.19 (range $13.56 – $41.70)

Most-billed visit code 99203

Established Patient

$96.38 typical visit price

range $17.00 – $135.35

Typical copayment $24.09 (range $4.25 – $33.83)

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.

87.86/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored as part of a group practice

Quality

87.61

Promoting Interoperability

100

Improvement Activities

Cost

71.95

Referred Medical Equipment & Supplies CMS DME claims

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390

DME-Oxygen and Supplies · category DC002N

2 suppliers13 claims13 services$74.59 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 5

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

DEIRDRE C GRIMES CFNP

Nurse Practitioner (Family)