Patrick Chambers
Emergency Medicine Physician · Pittsfield, MA
Patrick Chambers is an emergency medicine physician with a practice address in Pittsfield, Massachusetts, and NPI 1003201989, issued on Mar 30, 2015. Check the license (Massachusetts 274493, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Patrick Chambers
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- 274493 MA
Self-reported in NPPES; status is on the state search - Practice location
- 725 North St, Pittsfield, MA 01201
- Phone
- (413) 447-2000
- Enumerated
- Mar 30, 2015
- Record last updated
- Nov 21, 2018 (not updated in 8 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20180912001352); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 1,829 in Massachusetts → Look up another NPI →
Also registered at 725 North St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Deepak Agarwal, MDDiagnostic Radiology Physician1043265754
Verify Patrick Chambers in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 274493Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
19% fewer Medicare Part D claims than the average emergency medicine physician in 2024
184 Medicare Part D claims for 138 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 23 claims were for opioids.
Most prescribed
- Cephalexin18 claims
- Oxycodone Hcl15 claims
- Prednisone13 claims
- Amoxicillin-Clavulanate Potass12 claims
- Cefpodoxime Proxetil11 claims
- Ondansetron Odt11 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through 3 group practices
- Baystate Medical Practices IncSpringfield, MA
- Berkshire Medical Center IncPittsfield, MA
- Mercy Inpatient Medical Associates IncSpringfield, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Patrick Chambers among 1,829 emergency medicine physician records in Massachusetts
Patrick Chambers is one of 1,829 emergency medicine physician records with a practice address in Massachusetts. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 70% of them.
- NPI issued2015 · 70% of these records are older, 27% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2015 · median 2011 among the 1,200 with a school on file
- Record last updated2018 · 57% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
28 emergency medicine physician records list a practice address in Pittsfield
They are 28 of the 2,189 NPPES records with a practice address in Pittsfield, and 1,829 emergency medicine physician records in Massachusetts.
All 1,829 in Massachusetts → Every provider in Pittsfield → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Nancy Campbell, MDPittsfield, MA 012011275518243
- Michael Coyne, M.D.Pittsfield, MA 012011255345799
- Thomas Dourmashkin, M.D.Pittsfield, MA 012011114934486
- Peter Greenwald, M.D.Pittsfield, MA 012011255481164
- Ronald Hayden, M.D.Pittsfield, MA 012011447267612
- Michael McHugh, M.D.Pittsfield, MA 012011114985769
- Mark Nicoletti, M.D.Pittsfield, MA 012011427016013
- Valerie Nicoletti, M.D.Pittsfield, MA 012011902813587
Common questions
What is Patrick Chambers's NPI number?
Patrick Chambers's National Provider Identifier (NPI) is 1003201989, issued on Mar 30, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Patrick Chambers located?
The NPPES record lists a practice address at 725 North St, Pittsfield, MA, 01201. Phone: (413) 447-2000. Providers update this record themselves, so call before visiting.
How can I verify Patrick Chambers's license?
NPPES lists Massachusetts license number 274493, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://findmydoctor.mass.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Patrick Chambers prescribe under Medicare Part D?
In 2024, Patrick Chambers had 184 Medicare Part D claims for 138 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.