Andrew Pitzak, DO
Internal Medicine Physician · Grants Pass, OR
Andrew Pitzak, DO is an internal medicine physician with a practice address in Grants Pass, Oregon, and NPI 1679534002, issued on Mar 28, 2006. Check the license (Oregon DO23532, as entered in NPPES) on the Oregon Medical Board; the Medicare figures below come from public CMS files.
- Name
- Andrew Pitzak
- Credential
- DO
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- DO23532 OR
Self-reported in NPPES; status is on the state search - Practice location
- 495 Ramsey Ave, Grants Pass, OR 97527
- Phone
- (541) 476-6644
- Enumerated
- Mar 28, 2006
- Record last updated
- Sep 18, 2007 (not updated in 19 years: call before relying on the address or phone)
- Medicaid ID
- 287023 OR
- Medicare enrollment
- Enrolled (PECOS I20040512000027); accepts Medicare assignment
- Medical or professional school
- Des Moines University Of Osteopathic Medicine And Health Sciences, 1999
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,116 in Oregon → Look up another NPI →
Also registered at 495 Ramsey Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Caroline Brown, M.D.Family Medicine Physician1992700850
- Neil Phillips, D.O.Pediatrics Physician1619977089
- Marcel Wiggers, MDInternal Medicine Physician1780649939
Verify Andrew Pitzak in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOregon Medical Board
Search for license DO23532Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.3 times the Medicare Part D claims of the average internal medicine physician in 2024
7,441 Medicare Part D claims for 825 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 386 claims were for opioids.
Most prescribed
- Levothyroxine Sodium354 claims
- Losartan Potassium284 claims
- Atorvastatin Calcium279 claims
- Amlodipine Besylate210 claims
- Gabapentin203 claims
- Metoprolol Succinate197 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.
Industry payments in 2024: $75.17
1 payment: food and beverage; the largest payer was Lilly USA, LLC. 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
- Grants Pass Clinic LLPGrants Pass, OR
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Andrew Pitzak among 2,116 internal medicine physician records in Oregon
Andrew Pitzak, DO is one of 2,116 internal medicine physician records with a practice address in Oregon. 73% 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 7% of them.
- NPI issued2006 · 7% of these records are older, 54% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated1999 · median 2008 among the 1,232 with a school on file
- Record last updated2007 · 58% 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 Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
35 internal medicine physician records list a practice address in Grants Pass
They are 35 of the 2,127 NPPES records with a practice address in Grants Pass, and 2,116 internal medicine physician records in Oregon.
All 2,116 in Oregon → Every provider in Grants Pass → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Thomas Brandes, MDGrants Pass, OR 975271992700991
- John Countiss, M.D.Grants Pass, OR 975271144225921
- Edward Groenhout, M.D.Grants Pass, OR 975271760487557
- Haitham Haddad, M.D.Grants Pass, OR 975271922003714
- Dennis Minister, MDGrants Pass, OR 975271720193907
- Philip Murray, M.D.Grants Pass, OR 975271346245131
- Markus Opel, M.D.Grants Pass, OR 975271255336046
- Eric Perry, M.D.Grants Pass, OR 975271750387825
Common questions
What is Andrew Pitzak, DO's NPI number?
Andrew Pitzak, DO's National Provider Identifier (NPI) is 1679534002, issued on Mar 28, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Andrew Pitzak, DO located?
The NPPES record lists a practice address at 495 Ramsey Ave, Grants Pass, OR, 97527. Phone: (541) 476-6644. Providers update this record themselves, so call before visiting.
How can I verify Andrew Pitzak, DO's license?
NPPES lists Oregon license number DO23532, as entered by the provider. Search the Oregon Medical Board at https://www.oregon.gov/OMB/Pages/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Andrew Pitzak, DO prescribe under Medicare Part D?
In 2024, Andrew Pitzak, DO had 7,441 Medicare Part D claims for 825 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.