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DR. MARK D BARSAMIAN DO
NPI 1821204207
Ophthalmology - Retina Specialist in Hopedale, MA

Active since May 15, 2007PECOS EnrolledAccepts Medicare Assignment
54 HOPEDALE ST STE 1, HOPEDALE, MA 01747(774) 396-6905(810) 202-7533 Get Directions Write a Review

NPPES record last updated: January 29, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jan 29, 2026, Jun 23, 2020, Mar 17, 2018 (3 updates tracked since 2018).

About Dr. Mark D Barsamian Do NPPES

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

DR. MARK D BARSAMIAN DO (NPI 1821204207) is an individual retina specialist in Hopedale, Massachusetts, licensed in Massachusetts (243559) and active in the NPI registry since May 2007. He is enrolled in Medicare PECOS, maintains a secondary practice location in Worcester, and is a graduate of Other (2003).

NPPES Registry Identity

NPI1821204207
Entity TypeIndividualMale
Primary Taxonomy207WX0107X
Provider Legal NameDR. MARK D BARSAMIANCredential: DO
Location Address54 HOPEDALE ST STE 1Hopedale, MA 01747-1732
Mailing Address8 Nottingham RdWestborough, MA 01581-2408 · (248) 805-1013 · Fax (810) 202-7533
Phone(774) 396-6905
Fax(810) 202-7533
Sole ProprietorYes
Medical School CMSOtherGraduated 2003
Enumeration DateMay 15, 2007
Last NPPES UpdateJanuary 29, 20263 updates tracked since enumeration
NPPES CertifiedJanuary 29, 2026
✔ NPI 1821204207 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOphthalmology · Retina SpecialistAllopathic & Osteopathic Physicians
Taxonomy Code207WX0107X
Licenses✔ Licensed in MA · 243559✔ Licensed in RI · DO00851
Definition
An ophthalmologist who specializes in the diagnosis and treatment of vitreoretinal diseases.
54 HOPEDALE ST STE 1, Hopedale, MA 01747
Open in Google Maps ↗

Secondary Practice Location 1

Location 1281 Lincoln St, Dept of OphthalmologyWorcester, MA 01605-2138 · Phone (508) 334-6855 · Fax (508) 334-7695

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Sheld, Anthem Blue Cross and Blue Shield, Blue Cross and Blue Shield of Montana and more.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. Mark D Barsamian Do 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 ID3375638265
PECOS Enrollment IDI20100712000006, I20170310000448
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

6

Medicare enrollment records show Mark Barsamian reassigns Medicare billing to 6 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Retina Physicians And Surgeons Of New England, Inc.
Same address
Retina Specialist
54 HOPEDALE ST STE 1
Hopedale, MA 01747
  • Reassigned Medicare billing, Massachusetts and Rhode Island enrollments
NPI 1558987701 (508) 488-9770
Milford-Franklin Eye Center, LLC
8.7 mi
Ophthalmology
750 UNION ST
Franklin, MA 02038
  • Reassigned Medicare billing, Massachusetts enrollment
  • 16 clinicians in this Medicare group
NPI 1366441800 (508) 528-3344
Lifespan Physician Group, Inc.
10 mi
Surgery
2 DUDLEY ST STE 470
Providence, RI 02905
  • Reassigned Medicare billing, Rhode Island enrollment
  • 1,372 clinicians in this Medicare group
NPI 1174484216 (401) 272-1800
Koch Eye Associates LLP
29 mi
Ophthalmology
566 TOLLGATE ROAD
Warwick, RI 02886
  • Reassigned Medicare billing, Rhode Island enrollment
  • 35 clinicians in this Medicare group
NPI 1194881961 (401) 738-4800
Candescent Eye Surgicenter LLC
31 mi
Ambulatory Surgical
444 QUAKER LN
Warwick, RI 02886
  • Reassigned Medicare billing, Rhode Island enrollment
NPI 1023399318 (401) 384-6537
Eye Health Associates Of Rhode Island Inc
44 mi
Ophthalmology
73 VALLEY RD
Middletown, RI 02842
  • Reassigned Medicare billing, Rhode Island enrollment
  • 28 clinicians in this Medicare group
NPI 1124370176 (401) 845-2020

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.

Imaging of retina 92134
Imaging of the retina is a non-invasive procedure that captures detailed images of your eye's interior. This helps detect conditions like macular degeneration or retinal detachment. It's painless and takes only a few minutes.
231 services152 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.
164 services124 patients
Extended exam of the back part of the eye with retinal drawing 92201
This procedure involves a detailed examination of the back part of your eye, including the retina. It helps identify any abnormalities or issues. A retinal drawing is made to record findings. It's non-invasive and crucial for maintaining eye health.
101 services84 patients
Extended exam of the back part of the eye with optic nerve drawing 92202
This procedure involves a detailed examination of the back part of your eye, focusing on the optic nerve, a crucial component for vision. A drawing or map of the optic nerve is created to help track any changes over time. This can help detect eye diseases early.
44 services41 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.
42 services42 patients
Injection of drug into eye 67028
An injection into the eye is a procedure where a medication is delivered directly into your eye to treat various conditions. A local anesthetic is applied to numb the eye, ensuring minimal discomfort. The drug helps manage diseases like macular degeneration or diabetic retinopathy.
30 services21 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 01747 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
$134.47 typical visit price
range $58.86 – $177.36
Typical copayment $33.61 (range $14.71 – $44.34)
Most-billed visit code 99204
Established Patient
$73.22 typical visit price
range $19.11 – $144.84
Typical copayment $18.30 (range $4.77 – $36.21)
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.

RETINA PHYSICIANS AND SURGEONS OF NEW ENGLAND, INC.
Ophthalmology (Retina Specialist)
54 HOPEDALE ST STE 1
HOPEDALE, MA 01747
Worcester County (508) 488-9770

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 Mark Barsamian's NPI number?

The NPI number for Mark Barsamian is 1821204207. It was assigned to this individual provider in the NPPES registry on May 15, 2007.

Where is Mark Barsamian located?

Mark Barsamian practices at 54 Hopedale St Ste 1, Hopedale, MA 01747. The listed phone number is (774) 396-6905.

What is Mark Barsamian's specialty?

The primary specialty registered for this NPI is Ophthalmology, specializing in Retina Specialist, with taxonomy code 207WX0107X.

Is Mark Barsamian enrolled in Medicare?

Yes. Mark Barsamian 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 Mark Barsamian's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mark Barsamian reassigns Medicare benefits to 6 organizations: Retina Physicians And Surgeons Of New England, Inc. (Hopedale, MA), Milford-Franklin Eye Center, LLC (Franklin, MA), Lifespan Physician Group, Inc. (Providence, RI), Koch Eye Associates LLP (Warwick, RI), Candescent Eye Surgicenter LLC (Warwick, RI) and 1 more organization, listed in the Medicare section above. 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 Mark Barsamian's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Mark Barsamian accept?

Health plans from Anthem Blue Cross and Blue Sheld, Anthem Blue Cross and Blue Shield, Blue Cross and Blue Shield of Montana, Blue Cross and Blue Shield of Oklahoma and Blue Cross and Blue Shield of Texas and 1 other insurer list Mark Barsamian 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.

When was this NPI record last updated?

The NPPES record for Mark Barsamian was last updated on January 29, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.