James R. Gittzus, MD
Internal Medicine Physician · Pittsfield, MA
James R. Gittzus, MD is an internal medicine physician with a practice address in Pittsfield, Massachusetts, and NPI 1649359845, issued on Nov 6, 2006. Check the license (Massachusetts 46698, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- James R. Gittzus
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 46698 MA
Self-reported in NPPES; status is on the state search - Practice location
- 510 North Street, Pittsfield, MA 01201
- Phone
- (413) 499-2921
- Enumerated
- Nov 6, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (413) 499-2762
- Medicaid ID
- 0177482 MA
- Medicare enrollment
- Enrolled (PECOS I20050706000657); accepts Medicare assignment
- Medical or professional school
- University Of Massachusetts Medical School, 1979
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 6,825 in Massachusetts → Look up another NPI →
Also registered at 510 North Street
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Julie Dostie, LICSWClinical Social Worker1184085334
- Alison Flynn, ANPAdult Health Nurse Practitioner1174937197
- Rebecca Gamache, FNPFamily Nurse Practitioner1174065841
- Patricia Lehmann, MDInternal Medicine Physician1114007671
- Pamela Obert, CCCAAudiologist1821041120
- Lori Reamer, R.D.Registered Dietitian1528373891
Verify James R. Gittzus in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 46698Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.0 times the Medicare Part D claims of the average internal medicine physician in 2024
6,363 Medicare Part D claims for 462 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 17% of claims. 57 claims were for opioids.
Most prescribed
- Atorvastatin Calcium478 claims
- Levothyroxine Sodium336 claims
- Amlodipine Besylate295 claims
- Lisinopril287 claims
- Metoprolol Succinate261 claims
- Eliquis209 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.
The MIPS final score for 2023 (Medicare payment program): 83.9 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $239.77
12 payments; by number, the most common kind was food and beverage; the largest payer was Novo Nordisk Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Select Rehabilitation, LLCGlenview, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
James R. Gittzus among 6,825 internal medicine physician records in Massachusetts
James R. Gittzus, MD is one of 6,825 internal medicine physician records with a practice address in Massachusetts. 75% 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 12% of them.
- NPI issued2006 · 12% of these records are older, 54% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated1979 · median 2004 among the 4,103 with a school on file
- Record last updated2007 · 64% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
60 internal medicine physician records list a practice address in Pittsfield
They are 60 of the 2,189 NPPES records with a practice address in Pittsfield, and 6,825 internal medicine physician records in Massachusetts.
All 6,825 in Massachusetts → Every provider in Pittsfield → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Kyneret Albert, MDPittsfield, MA 012011457325102
- Gordon Bird, M.D.Pittsfield, MA 012011225021603
- Michael Blackman, MDPittsfield, MA 012011558329177
- Noel Blagg, M.D.Pittsfield, MA 012011952394355
- Rebecca Caine, M.D.Pittsfield, MA 012011730147356
- Charles D'Agostino, MDPittsfield, MA 012011750366381
- Sharon Gittzus, A.N.P.-CPittsfield, MA 012011265494439
- Harry Hartford, M.D.Pittsfield, MA 012011669470456
Common questions
What is James R. Gittzus, MD's NPI number?
James R. Gittzus, MD's National Provider Identifier (NPI) is 1649359845, issued on Nov 6, 2006. An NPI identifies a provider in billing; it is not a license.
Where is James R. Gittzus, MD located?
The NPPES record lists a practice address at 510 North Street, Pittsfield, MA, 01201. Phone: (413) 499-2921. Providers update this record themselves, so call before visiting.
How can I verify James R. Gittzus, MD's license?
NPPES lists Massachusetts license number 46698, 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 James R. Gittzus, MD prescribe under Medicare Part D?
In 2024, James R. Gittzus, MD had 6,363 Medicare Part D claims for 462 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is James R. Gittzus, MD's MIPS final score?
The 2023 MIPS final score is 83.9 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.