DR. RICHARD A BROWN M.D.
NPI 1689657231
Internal Medicine - Rheumatology in Greenfield, MA
About Dr. Richard A Brown M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. RICHARD A BROWN M.D. (NPI 1689657231) is an individual rheumatology provider in Greenfield, Massachusetts, licensed in Massachusetts (48143) and active in the NPI registry since November 2005. He is enrolled in Medicare PECOS, maintains 3 additional practice locations, and is a graduate of Albert Einstein College Of Medicine Of Yeshiva University (1979).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 3
Other Identifiers 7
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. Richard A Brown 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.
Medicare Billing Reassignments
2Medicare enrollment records show Richard Brown reassigns Medicare billing to 2 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
- Medicare enrollment name: Valley Medical Group PC
- 122 clinicians in this Medicare group
Northampton, MA 01060
- Reassigned Medicare billing, Massachusetts enrollment
- 539 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 5
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.
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.
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.
GREENFIELD, MA 01301
GREENFIELD, MA 01301
GREENFIELD, MA 01301
GREENFIELD, MA 01301
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 Richard Brown's NPI number?
The NPI number for Richard Brown is 1689657231. It was assigned to this individual provider in the NPPES registry on November 28, 2005.
Where is Richard Brown located?
Richard Brown practices at 329 Conway St, Greenfield, MA 01301. The listed phone number is (413) 774-6301.
What is Richard Brown's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Rheumatology, with taxonomy code 207RR0500X.
Is Richard Brown enrolled in Medicare?
Yes. Richard Brown 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 Richard Brown's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Richard Brown reassigns Medicare benefits to 2 organizations: Valley Medical Group, P.C. (Greenfield, MA) and Mass General Brigham Medical Group Western Massachusetts Inc (Northampton, MA). 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 Richard Brown'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 Richard Brown was last updated on March 21, 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.
# Dr. Richard A Brown, M.D. · NPI 1689657231
Rheumatology physician in Greenfield, Massachusetts. Individual provider, active in the CMS NPPES registry since November 28, 2005.
## Identity
- **NPI:** 1689657231 (Entity type: Individual)
- **Enumerated:** November 28, 2005
- **Primary specialty:** Internal Medicine - Rheumatology · taxonomy 207RR0500X
- **State license:** 48143 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 329 CONWAY ST, Greenfield, MA 01301-1521
- **Phone:** (413) 774-6301 · **Fax:** (866) 644-0871
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Valley Medical Group, P.C. (NPI 1912924705, Greenfield, MA); Mass General Brigham Medical Group Western Massachusetts Inc (NPI 1295787919, Northampton, MA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Albert Einstein College Of Medicine Of Yeshiva University, class of 1979
## Record status
- **NPPES last updated:** March 21, 2024
- **Other identifiers:** Medicaid 3138411 (MA); Other 5413573 (MA); Other 20870 (MA); and 4 more
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Source: [NPI Profile](https://npiprofile.com/npi/1689657231) · Data from the CMS NPPES public registry.