1. Home
  2. Directory
  3. Maine
  4. Portland
  5. Neurological Surgery
  6. NPI Profile

NICOLAS FLANNERY ARREDONDO M.D.
NPI 1952520694
Neurological Surgery in Portland, ME

Active since April 24, 2007PECOS EnrolledAccepts Medicare Assignment
195 FORE RIVER PKWY STE 440, PORTLAND, ME 04102(207) 553-6054(207) 553-6076 Get Directions Write a Review

NPPES record last updated: February 1, 2023. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Nicolas Flannery Arredondo M.d. NPPES

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

NICOLAS FLANNERY ARREDONDO M.D. (NPI 1952520694) is an individual neurological surgery provider in Portland, Maine, licensed in Maine (MD21958) and active in the NPI registry since April 2007. He is enrolled in Medicare PECOS, is affiliated with Northern Light Health, and is a graduate of University Of Texas Medical School At San Antonio (2002).

NPPES Registry Identity

NPI1952520694
Entity TypeIndividualMale
Primary Taxonomy207T00000X
Provider Legal NameNICOLAS FLANNERY ARREDONDOCredential: M.D.
Location Address195 FORE RIVER PKWY STE 440Portland, ME 04102-2788
Mailing Address195 Fore River Pkwy Ste 440Portland, ME 04102-2788 · (072) 553-6054 · Fax (207) 553-6076
Phone(207) 553-6054
Fax(207) 553-6076
Sole ProprietorNo
Medical School CMSUniversity Of Texas Medical School At San AntonioGraduated 2002
Enumeration DateApril 24, 2007
Last NPPES UpdateFebruary 1, 2023
NPPES CertifiedFebruary 1, 2023
✔ NPI 1952520694 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNeurological SurgeryAllopathic & Osteopathic Physicians
Taxonomy Code207T00000X
License✔ Licensed in ME · MD21958
Definition
A neurological surgeon provides the operative and non-operative management (i.e., prevention, diagnosis, evaluation, treatment, critical care, and rehabilitation) of disorders of the central, peripheral, and autonomic nervous systems, including their supporting structures and vascular supply; the evaluation and treatment of pathological processes which modify function or activity of the nervous system; and the operative and non-operative management of pain. A neurological surgeon treats patients with disorders of the nervous system; disorders of the brain, meninges, skull, and their blood supply, including the extracranial carotid and vertebral arteries; disorders of the pituitary gland; disorders of the spinal cord, meninges, and vertebral column, including those which may require treatment by spinal fusion or instrumentation; and disorders of the cranial and spinal nerves throughout their distribution.
195 FORE RIVER PKWY STE 440, Portland, ME 04102
Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, Taro Health.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

Nicolas Flannery Arredondo M.d. 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 ID4880748268
PECOS Enrollment IDI20180129002321
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 Nicolas Arredondo reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Mercy Hospital
Same address
General Acute Care Hospital
195 FORE RIVER PKWY, SUITE 300
Portland, ME 04102
  • Reassigned Medicare billing, Maine enrollment
  • 322 clinicians in this Medicare group
NPI 1427313048 (207) 879-3601

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 9

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.
44 services43 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
37 services37 patients
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.
33 services33 patients
New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205
This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.
25 services25 patients
Insertion of cage or mesh device to spine bone and disc space during spine fusion 22853
Spine fusion is a procedure to join two or more vertebrae. During this process, a cage or mesh device is inserted into the spine bone and disc space. This helps to stabilize the spine, reduce pain, and improve functionality. The device acts as a bridge for new bone to grow on.
24 services17 patients
Fusion of spine in lower back with partial removal of spine bone and disc 22633
This procedure, called lumbar spinal fusion, involves joining two or more vertebrae in your lower back. It includes a partial removal of a spine bone and disc to alleviate pain and improve stability. The goal is to reduce motion between vertebrae and prevent nerve irritation.
13 services13 patients

Hospital Affiliations CMS Care Compare

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

Northern Light Health

Acute Care Hospitals · Portland, ME
4/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number200008
Location144 State StreetPortland, ME 04101 · Cumberland County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 04102 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
$128.83 typical visit price
range $56.28 – $169.96
Typical copayment $32.20 (range $14.07 – $42.49)
Most-billed visit code 99204
Established Patient
$70.13 typical visit price
range $18.22 – $138.92
Typical copayment $17.53 (range $4.55 – $34.73)
Most-billed visit code 99213
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

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

LYNN MCGRATH JR. MD
Neurological Surgery
195 FORE RIVER PKWY STE 440
PORTLAND, ME 04102
Cumberland County (207) 523-5912

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 Nicolas Arredondo's NPI number?

The NPI number for Nicolas Arredondo is 1952520694. It was assigned to this individual provider in the NPPES registry on April 24, 2007.

Where is Nicolas Arredondo located?

Nicolas Arredondo practices at 195 Fore River Pkwy Ste 440, Portland, ME 04102. The listed phone number is (207) 553-6054.

What is Nicolas Arredondo's specialty?

The primary specialty registered for this NPI is Neurological Surgery with taxonomy code 207T00000X.

Is Nicolas Arredondo enrolled in Medicare?

Yes. Nicolas Arredondo 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 Nicolas Arredondo's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Nicolas Arredondo reassigns Medicare benefits to Mercy Hospital (Portland, ME). 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 Nicolas Arredondo's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Nicolas Arredondo accept?

Health plans from Anthem Blue Cross and Blue Shield and Taro Health list Nicolas Arredondo 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 Nicolas Arredondo affiliated with any hospitals?

According to CMS data, Nicolas Arredondo is affiliated with Northern Light Health.

When was this NPI record last updated?

The NPPES record for Nicolas Arredondo was last updated on February 1, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.