1. Home
  2. Directory
  3. Maine
  4. Portland
  5. Nurse Practitioner
  6. NPI Profile

MICHELLE ATIENZA
NPI 1710399506
Nurse Practitioner - Family in Portland, ME

Active since May 28, 2014PECOS EnrolledAccepts Medicare Assignment
1321 WASHINGTON AVE, PORTLAND, ME 04103(207) 553-0825 Get Directions Write a Review

NPPES record last updated: May 28, 2014. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Michelle Atienza NPPES

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

MICHELLE ATIENZA (NPI 1710399506) is an individual family provider in Portland, Maine, licensed in Maine (20681242) and active in the NPI registry since May 2014. She is enrolled in Medicare PECOS, is affiliated with Central Maine Medical Center, and is a graduate of Other (2014).

NPPES Registry Identity

NPI1710399506
Entity TypeIndividualFemale
Primary Taxonomy363LF0000X
Provider Legal NameMICHELLE ATIENZA
Location Address1321 WASHINGTON AVEPortland, ME 04103-3636
Mailing Address1321 Washington AvePortland, ME 04103-3636 · (207) 553-0825
Phone(207) 553-0825
Sole ProprietorNo
Medical School CMSOtherGraduated 2014
Enumeration DateMay 28, 2014
✔ NPI 1710399506 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · FamilyPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LF0000X
License✔ Licensed in ME · 20681242
1321 WASHINGTON AVE, Portland, ME 04103
Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include UnitedHealthcare.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

Michelle Atienza 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 ID2860612645
PECOS Enrollment IDI20140929001993, I20250606000056
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

4

Medicare enrollment records show Michelle Atienza reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Impact Health Me, LLC
7.8 mi
Nurse Practitioner
370 PORTLAND ST
Yarmouth, ME 04096
  • Reassigned Medicare billing, Maine enrollment
  • 33 clinicians in this Medicare group
NPI 1518432574 (516) 705-4805
Infinite Medical PC
148 mi
Family Medicine
7 CREEK LN
Bristol, RI 02809
  • Reassigned Medicare billing, Maine enrollment
  • 9 clinicians in this Medicare group
NPI 1407483175 (718) 964-6161
Impact Health Aco PC
218 mi
Nurse Practitioner
240 INDIAN RIVER RD STE C7
Orange, CT 06477
  • Reassigned Medicare billing, Maine enrollment
  • 19 clinicians in this Medicare group
NPI 1447177068 (203) 497-3861
Tapestry Telehealth PLLC
724 mi
Geriatric Medicine
230 CHERRY ST
Chillicothe, OH 45601
  • Reassigned Medicare billing, Virginia enrollment
  • 24 clinicians in this Medicare group
NPI 1992215446 (203) 666-8145

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 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.

Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes 99309
A follow-up nursing facility visit per day is a daily check-in by a healthcare professional. This 25-minute visit typically involves monitoring your health progress, addressing any concerns, and adjusting treatment plans as necessary. It's a vital part of ensuring your ongoing wellbeing.
1,003 services225 patients
Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes 99310
A follow-up nursing facility visit is a routine check-up that typically lasts about 35 minutes. During this visit, your health status is evaluated, any changes in your condition are noted, and necessary adjustments to your care plan are made. It's an essential part of maintaining your health.
266 services177 patients
Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes 99309
A follow-up nursing facility visit per day is a daily check-in by a healthcare professional. This 25-minute visit typically involves monitoring your health progress, addressing any concerns, and adjusting treatment plans as necessary. It's a vital part of ensuring your ongoing wellbeing.
191 services44 patients
Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more 99308
A follow-up nursing facility visit per day is a daily check-up service provided by healthcare professionals. It lasts around 15 minutes and involves assessing your health status, monitoring your recovery progress, and addressing any concerns you may have about your health or treatment.
76 services58 patients
Advance care planning, first 30 minutes 99497
Advance care planning is a process where you discuss your healthcare preferences with your doctor. This conversation, lasting up to 30 minutes, helps ensure your wishes are respected if you're unable to communicate them in the future. It's about your care, your way.
62 services52 patients
Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes 99310
A follow-up nursing facility visit is a routine check-up that typically lasts about 35 minutes. During this visit, your health status is evaluated, any changes in your condition are noted, and necessary adjustments to your care plan are made. It's an essential part of maintaining your health.
21 services18 patients

Hospital Affiliations CMS Care Compare 2

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

Central Maine Medical Center

Acute Care Hospitals · Lewiston, ME
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number200024
Location300 Main StreetLewiston, ME 04240 · Androscoggin County
Emergency services Birthing friendly

Rumford Hospital

Critical Access Hospitals · Rumford, ME
OwnershipProprietary
CMS Certification Number201306
Location420 Franklin StreetRumford, ME 04276 · Oxford County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 04103 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
$86.72 typical visit price
range $56.28 – $169.96
Typical copayment $21.68 (range $14.07 – $42.49)
Most-billed visit code 99203
Established Patient
$99.18 typical visit price
range $18.22 – $138.92
Typical copayment $24.79 (range $4.55 – $34.73)
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.

Reported Quality Measures

Care Plan
Percentage of patients aged 65 years and older who have an advance care plan or surrogate decision maker documented in the medical record that an advance care plan was discussed but the patient did not wish or was not able to name a surrogate decision maker…
100%337 patients5/55-star benchmark: 100%
Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

Other Providers at the Same Location NPPES 14

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

NICHOLAS D PENNELL FNP
Nurse Practitioner (Family)
1321 WASHINGTON AVE, 301
PORTLAND, ME 04103
Cumberland County (207) 780-6565
PAULA CURRAN LCSW
Social Worker (Clinical)
1321 WASHINGTON AVE, SUITE 304
PORTLAND, ME 04103
Cumberland County (207) 541-9364
YVONNE L. DECORY M.D., P.A.
Psychiatry & Neurology (Psychiatry)
1321 WASHINGTON AVE, SUITE 304
PORTLAND, ME 04103
Cumberland County (207) 541-9354
LAUREN HERDRICH MA, LPC
Counselor (Professional)
1321 WASHINGTON AVE
PORTLAND, ME 04103
Cumberland County (207) 274-1920
KATHY DAHMS FNP
Nurse Practitioner (Family)
1321 WASHINGTON AVE, SUITE 310
PORTLAND, ME 04103
Cumberland County (207) 780-6565
JENNIFER A BLANCHETTE PSYD
Psychologist (Clinical)
1321 WASHINGTON AVE
PORTLAND, ME 04103
Cumberland County (207) 749-2343
KAREN HEROUX LCSW
Social Worker (Clinical)
1321 WASHINGTON AVE, SUITE 106
PORTLAND, ME 04103
Cumberland County (888) 806-8801
DIALECTICAL AND COGNITIVE BEHAVIORAL THERAPY OF NH, PLLC
Community/Behavioral Health
1321 WASHINGTON AVE, SUITE 304
PORTLAND, ME 04103
Cumberland County (323) 723-2864

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 Michelle Atienza's NPI number?

The NPI number for Michelle Atienza is 1710399506. It was assigned to this individual provider in the NPPES registry on May 28, 2014.

Where is Michelle Atienza located?

Michelle Atienza practices at 1321 Washington Ave, Portland, ME 04103. The listed phone number is (207) 553-0825.

What is Michelle Atienza's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.

Is Michelle Atienza enrolled in Medicare?

Yes. Michelle Atienza 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 Michelle Atienza's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Michelle Atienza reassigns Medicare benefits to 4 organizations: Impact Health Me, LLC (Yarmouth, ME), Infinite Medical PC (Bristol, RI), Impact Health Aco PC (Orange, CT) and Tapestry Telehealth PLLC (Chillicothe, OH). 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 Michelle Atienza's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Michelle Atienza accept?

Health plans from UnitedHealthcare list Michelle Atienza 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.

Is Michelle Atienza affiliated with any hospitals?

According to CMS data, Michelle Atienza is affiliated with Central Maine Medical Center and Rumford Hospital.

When was this NPI record last updated?

The NPPES record for Michelle Atienza was last updated on May 28, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.