Christopher Biernacki, PAC
Physician Assistant · Pittsfield, MA
Christopher Biernacki, PAC is a physician assistant with a practice address in Pittsfield, Massachusetts, and NPI 1114985736, issued on May 3, 2006. Check the license (Massachusetts 1943, as entered in NPPES) with the Massachusetts board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Christopher Biernacki
- Credential
- PAC
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- 1943 MA
Self-reported in NPPES; status is on the state search - Practice location
- 725 North St, Pittsfield, MA 01201
- Phone
- (413) 447-2000
- Enumerated
- May 3, 2006
- Record last updated
- Jul 13, 2026
- Fax
- (413) 496-6836
- Medicare enrollment
- Enrolled (PECOS I20051130000242); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 4,713 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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Verify Christopher Biernacki in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
Search for license 1943Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
10.2 times the Medicare Part D claims of the average physician assistant in 2024
8,447 Medicare Part D claims for 365 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 6% of claims.
Most prescribed
- Gabapentin523 claims
- Quetiapine Fumarate446 claims
- Trazodone Hcl391 claims
- Lamotrigine364 claims
- Lorazepam328 claims
- Aripiprazole314 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 one group practice
- The Brien Center For Mental Health And Substance Abuse Services IncPittsfield, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Christopher Biernacki among 4,713 physician assistant records in Massachusetts
Christopher Biernacki, PAC is one of 4,713 physician assistant records with a practice address in Massachusetts. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 1% of them.
- NPI issued2006 · 1% of these records are older, 87% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated2002 · median 2019 among the 3,217 with a school on file
- Record last updated2026 · 38% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
47 physician assistant records list a practice address in Pittsfield
They are 47 of the 2,189 NPPES records with a practice address in Pittsfield, and 4,713 physician assistant records in Massachusetts.
All 4,713 in Massachusetts → Every provider in Pittsfield → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Nicolle Alvarez, RPA-CPittsfield, MA 012011942591193
- Nestor Bond, PAPittsfield, MA 012011063729697
- Dianna Brooks, PACPittsfield, MA 012011659480796
- William Buckenroth, PA-CPittsfield, MA 012011811136591
- Victoria Burgess, PA-CPittsfield, MA 012011255442364
- Bonnie Chard, PA-CPittsfield, MA 012011083722862
- Colleen Halvorsen-Sinclair, PAPittsfield, MA 012011437288685
- Joseph Healy, PAPittsfield, MA 012011295723609
Common questions
What is Christopher Biernacki, PAC's NPI number?
Christopher Biernacki, PAC's National Provider Identifier (NPI) is 1114985736, issued on May 3, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Christopher Biernacki, PAC 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 Christopher Biernacki, PAC's license?
NPPES lists Massachusetts license number 1943, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.
How much does Christopher Biernacki, PAC prescribe under Medicare Part D?
In 2024, Christopher Biernacki, PAC had 8,447 Medicare Part D claims for 365 beneficiaries; the average among physician assistant prescribers was 830. 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.