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DR. MOHAMMAD HOSSEIN NIAYESH MD,FACS,FRCS
NPI 1871862656
Surgery in Millinocket, ME

Active since December 22, 2011PECOS EnrolledAccepts Medicare Assignment
165 POPLAR ST STE 2, MILLINOCKET, ME 04462(207) 723-3003(207) 723-3006 Get Directions Write a Review

NPPES record last updated: September 25, 2024. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Sep 25, 2024, Jul 10, 2018 (2 updates tracked since 2018).

About Dr. Mohammad Hossein Niayesh Md,facs,frcs NPPES

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

DR. MOHAMMAD HOSSEIN NIAYESH MD,FACS,FRCS (NPI 1871862656) is an individual surgery provider in Millinocket, Maine, licensed in Maine (018906) and active in the NPI registry since December 2011. He is enrolled in Medicare PECOS, is affiliated with Millinocket Regional Hospital, and maintains a secondary practice location in Millinocket.

NPPES Registry Identity

NPI1871862656
Entity TypeIndividualMale
Primary Taxonomy208600000X
Provider Legal NameDR. MOHAMMAD HOSSEIN NIAYESHCredential: MD,FACS,FRCS
Location Address165 POPLAR ST STE 2Millinocket, ME 04462-1235
Mailing Address200 Somerset StMillinocket, ME 04462-1298 · (207) 723-7247
Phone(207) 723-3003
Fax(207) 723-3006
Sole ProprietorNo
Medical School CMSOtherGraduated 1980
Enumeration DateDecember 22, 2011
Last NPPES UpdateSeptember 25, 20242 updates tracked since enumeration
NPPES CertifiedSeptember 25, 2024
✔ NPI 1871862656 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySurgeryAllopathic & Osteopathic Physicians
Taxonomy Code208600000X
License✔ Licensed in ME · 018906
Definition
A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.
165 POPLAR ST STE 2, Millinocket, ME 04462
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Secondary Practice Location 1

Location 1200 Somerset StMillinocket, ME 04462-1298 · Phone (207) 723-3374

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield.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. Mohammad Hossein Niayesh Md,facs,frcs 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 ID547429466
PECOS Enrollment IDI20120313000825
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

2

Medicare enrollment records show Mohammad Niayesh reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Millinocket Regional Hospital
Same address
Critical Access
200 SOMERSET ST
Millinocket, ME 04462
  • Reassigned Medicare billing, Maine enrollment
  • 19 clinicians in this Medicare group
NPI 1275646150 (207) 723-5161
Calais Community Hospital
78 mi
Critical Access
24 HOSPITAL LN
Calais, ME 04619
  • Reassigned Medicare billing, Maine enrollment
  • Medicare enrollment name: Calais Regional Hospital
  • 24 clinicians in this Medicare group
NPI 1922001049 (207) 454-7521

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Hospital Affiliations CMS Care Compare

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

Millinocket Regional Hospital

Critical Access Hospitals · Millinocket, ME
OwnershipVoluntary non-profit - Private
CMS Certification Number201307
Location200 Somerset StreetMillinocket, ME 04462 · Penobscot County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 04462 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
$82.58 typical visit price
range $53.26 – $162.77
Typical copayment $20.64 (range $13.31 – $40.69)
Most-billed visit code 99203
Established Patient
$66.74 typical visit price
range $16.90 – $132.79
Typical copayment $16.68 (range $4.22 – $33.19)
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.

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 Mohammad Niayesh's NPI number?

The NPI number for Mohammad Niayesh is 1871862656. It was assigned to this individual provider in the NPPES registry on December 22, 2011.

Where is Mohammad Niayesh located?

Mohammad Niayesh practices at 165 Poplar St Ste 2, Millinocket, ME 04462. The listed phone number is (207) 723-3003.

What is Mohammad Niayesh's specialty?

The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.

Is Mohammad Niayesh enrolled in Medicare?

Yes. Mohammad Niayesh 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 Mohammad Niayesh's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mohammad Niayesh reassigns Medicare benefits to 2 organizations: Millinocket Regional Hospital (Millinocket, ME) and Calais Community Hospital (Calais, ME). 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 Mohammad Niayesh's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Mohammad Niayesh accept?

Health plans from Anthem Blue Cross and Blue Shield list Mohammad Niayesh 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 Mohammad Niayesh affiliated with any hospitals?

According to CMS data, Mohammad Niayesh is affiliated with Millinocket Regional Hospital.

When was this NPI record last updated?

The NPPES record for Mohammad Niayesh was last updated on September 25, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.