JAMES IRA MERLIN O.D.
NPI 1972601912
Optometrist in Greenfield, MA

Q: What is James Merlin's NPI number?

The NPI number for James Merlin is 1972601912. It was assigned to this individual provider in the NPPES registry on September 21, 2006.

Q: What is James Merlin's specialty?

The primary specialty registered for this NPI is Optometrist with taxonomy code 152W00000X.

Q: When was this NPI record last updated?

The NPPES record for James Merlin was last updated on March 17, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.

Active since September 21, 2006PECOS Enrolled

329 CONWAY ST, GREENFIELD, MA 01301(413) 774-6301(413) 772-3395 Get Directions Write a Review

NPPES record last updated: March 17, 2018. Verified against the NPPES registry weekly; last sync: October 25, 2026.

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About James Ira Merlin O.d. NPPES

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

JAMES IRA MERLIN O.D. (NPI 1972601912) is an individual optometrist in Greenfield, Massachusetts, licensed in Massachusetts (3359) and active in the NPI registry since September 2006. He is enrolled in Medicare PECOS and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1972601912

Entity TypeIndividualMale

Primary Taxonomy152W00000X

Provider Legal NameJAMES IRA MERLINCredential: O.D.

Location Address329 CONWAY STGreenfield, MA 01301-1521

Mailing Address329 Conway StGreenfield, MA 01301-1521 · (413) 774-6301 · Fax (413) 772-3395

Phone(413) 774-6301

Fax(413) 772-3395

Sole ProprietorNo

Enumeration DateSeptember 21, 2006

Last NPPES UpdateMarch 17, 2018

✔ NPI 1972601912 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOptometristEye and Vision Services Providers

Taxonomy Code152W00000X

License✔ Licensed in MA · 3359

Definition

Doctors of optometry (ODs) are the primary health care professionals for the eye. Optometrists examine, diagnose, treat, and manage diseases, injuries, and disorders of the visual system, the eye, and associated structures as well as identify related systemic conditions affecting the eye. An optometrist has completed pre-professional undergraduate education in a college or university and four years of professional education at a college of optometry, leading to the doctor of optometry (O.D.) degree. Some optometrists complete an optional residency in a specific area of practice. Optometrists are eye health care professionals state-licensed to diagnose and treat diseases and disorders of the eye and visual system.

329 CONWAY ST, Greenfield, MA 01301

Open in Google Maps ↗

Secondary Practice Locations 2

Location 170 Main StFlorence, MA 01062-1466 · Phone (413) 586-8400 · Fax (413) 585-5463

Location 231 Hall DrAmherst, MA 01002-2751 · Phone (413) 256-5501 · Fax (413) 256-4466

Other Identifiers 2

Other3359MA · Ma State License

Medicaid110016183AMA

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

James Ira Merlin O.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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

Valley Medical Group, P.C.

Same address

Family Medicine

329 CONWAY ST, GREENFIELD HEALTH CENTER
Greenfield, MA 01301

Reassigned Medicare billing, Massachusetts enrollment
Medicare enrollment name: Valley Medical Group PC
122 clinicians in this Medicare group

NPI 1912924705 (413) 774-6301

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 01301 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 20

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

MASSACHUSETTS SOCIETY FOR THE PREVENTION OF CRUELTY TO CHILDREN

Social Worker (Clinical)

329 CONWAY ST, SUITE 2
GREENFIELD, MA 01301

Franklin County (413) 773-3608

VALLEY MEDICAL GROUP, P.C.

Durable Medical Equipment & Medical Supplies

329 CONWAY ST, GREENFIELD HEALTH CENTER
GREENFIELD, MA 01301

Franklin County (413) 774-6301

MARJORIE DALE SOBIL RD, LDN

Dietitian, Registered

329 CONWAY ST
GREENFIELD, MA 01301

Franklin County (413) 774-6301

MRS. BARBARA JEAN BERTHIAUME APRN

Nurse Practitioner (Family)

329 CONWAY ST
GREENFIELD, MA 01301

Franklin County (413) 774-6301

DR. PATRICIA A IVERSON M.D.

Family Medicine

329 CONWAY ST, VALLEY MEDICAL GROUP, PC-GREENFIELD HEALTH CENTER
GREENFIELD, MA 01301

Franklin County (413) 774-6301

DR. BARBARA ARNOLD MORRIS AU.D.

Audiologist

329 CONWAY ST, PIONEER HEARING SERVICES
GREENFIELD, MA 01301

Franklin County (413) 773-5119

MRS. MARY-JO P CROWLEY-BOWDISH LICSW

Social Worker (Clinical)

329 CONWAY ST
GREENFIELD, MA 01301

Franklin County (413) 773-3608

MS. REBECCA L BUCALA PT

Physical Therapist

329 CONWAY ST, GREENFIELD HEALTH CENTER
GREENFIELD, MA 01301

Franklin County (413) 774-6301

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 James Merlin's NPI number?

The NPI number for James Merlin is 1972601912. It was assigned to this individual provider in the NPPES registry on September 21, 2006.

Where is James Merlin located?

James Merlin practices at 329 Conway St, Greenfield, MA 01301. The listed phone number is (413) 774-6301.

What is James Merlin's specialty?

The primary specialty registered for this NPI is Optometrist with taxonomy code 152W00000X.

Is James Merlin enrolled in Medicare?

Yes. James Merlin is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for James Merlin's services?

According to the CMS Revalidation Reassignment List (October 2026 release), James Merlin reassigns Medicare benefits to Valley Medical Group, P.C. (Greenfield, MA). 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 James Merlin's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for James Merlin was last updated on March 17, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.