DR. ADAM C LAU MD
NPI 1649415530
Psychiatry & Neurology - Psychiatry in Greenfield, MA
About Dr. Adam C Lau Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. ADAM C LAU MD (NPI 1649415530) is an individual psychiatry provider in Greenfield, Massachusetts, licensed in Massachusetts (265119) and active in the NPI registry since December 2008. He is enrolled in Medicare PECOS, is affiliated with Cooley Dickinson Hospital Inc,the, and maintains a secondary practice location in Northampton.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Other Identifiers 1
Accepted 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. Adam C Lau Md 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.
Medicare Billing Reassignments
7Medicare enrollment records show Adam Lau reassigns Medicare billing to 7 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Greenfield, MA 01301
- Reassigned Medicare billing, Massachusetts enrollment
- 169 clinicians in this Medicare group
Northampton, MA 01060
- Reassigned Medicare billing, Massachusetts enrollment
- 158 clinicians in this Medicare group
Chicopee, MA 01020
- Reassigned Medicare billing, Massachusetts enrollment
- 242 clinicians in this Medicare group
Holyoke, MA 01040
- Reassigned Medicare billing, Massachusetts enrollment
- Also billed through NPI 1083776140 (Massachusetts)
- 241 clinicians in this Medicare group
Holyoke, MA 01040
- Reassigned Medicare billing, Massachusetts enrollment
- 77 clinicians in this Medicare group
Springfield, MA 01199
- Reassigned Medicare billing, Massachusetts enrollment
- 1,537 clinicians in this Medicare group
Devens, MA 01434
- Reassigned Medicare billing, Massachusetts enrollment
- 76 clinicians in this Medicare group
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 10
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.
Hospital Affiliations CMS Care Compare 4
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Cooley Dickinson Hospital Inc,the
Acute Care Hospitals · Northampton, MABaystate Franklin Medical Center
Acute Care Hospitals · Greenfield, MAHolyoke Medical Center
Acute Care Hospitals · Holyoke, MABaystate Medical Center
Acute Care Hospitals · Springfield, MAPhysician 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.
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.
Other Providers at the Same Location NPPES 10
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
GREENFIELD, MA 01301
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 Adam Lau's NPI number?
The NPI number for Adam Lau is 1649415530. It was assigned to this individual provider in the NPPES registry on December 8, 2008.
Where is Adam Lau located?
Adam Lau practices at 164 High Street, Greenfield, MA 01301. The listed phone number is (413) 773-2595.
What is Adam Lau's specialty?
The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.
Is Adam Lau enrolled in Medicare?
Yes. Adam Lau 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 Adam Lau's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Adam Lau reassigns Medicare benefits to 7 organizations: Clinical & Support Options, Inc (Greenfield, MA), Cooley Dickinson Hospital Inc (Northampton, MA), Western Mass Physician Associates Inc (Chicopee, MA), Holyoke Medical Center, Inc. (Holyoke, MA), Holyoke Capital Jv, LLC (Holyoke, MA) and 2 more organizations, 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 Adam Lau's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Adam Lau accept?
Health plans from Anthem Blue Cross and Blue Shield, Harvard Pilgrim Health Care and Taro Health list Adam Lau 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 Adam Lau affiliated with any hospitals?
According to CMS data, Adam Lau is affiliated with Cooley Dickinson Hospital Inc,the, Baystate Franklin Medical Center, Holyoke Medical Center and Baystate Medical Center.
When was this NPI record last updated?
The NPPES record for Adam Lau was last updated on May 23, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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.
# Dr. Adam C Lau, MD · NPI 1649415530
Psychiatry physician in Greenfield, Massachusetts. Individual provider, active in the CMS NPPES registry since December 8, 2008.
## Identity
- **NPI:** 1649415530 (Entity type: Individual)
- **Enumerated:** December 8, 2008
- **Primary specialty:** Psychiatry & Neurology - Psychiatry · taxonomy 2084P0800X
- **State license:** 265119 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 164 HIGH STREET, Greenfield, MA 01301-2613
- **Phone:** (413) 773-2595
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 7 organizations under Medicare reassignment (form CMS-855R): Clinical & Support Options, Inc (NPI 1831265115, Greenfield, MA); Cooley Dickinson Hospital Inc (NPI 1871512814, Northampton, MA); Western Mass Physician Associates Inc (NPI 1922009547, Chicopee, MA); Holyoke Medical Center, Inc. (NPI 1750395737, Holyoke, MA); Holyoke Capital Jv, LLC (NPI 1649856618, Holyoke, MA); and 2 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2004
## Record status
- **NPPES last updated:** May 23, 2025
- **Other identifiers:** Medicaid 03399731 (NY)
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Source: [NPI Profile](https://npiprofile.com/npi/1649415530) · Data from the CMS NPPES public registry.