Patan Gultawatvichai, M.D.
Hematology & Oncology Physician · Portland, OR
Patan Gultawatvichai, M.D. is a hematology & oncology physician with a practice address in Portland, Oregon, and NPI 1720335987, issued on Aug 7, 2012. Check the license (Oregon MD221300, as entered in NPPES) on the Oregon Medical Board; the Medicare figures below come from public CMS files.
- Name
- Patan Gultawatvichai
- Credential
- M.D.
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License numbers
- MD221300 OR
274829 MA
Self-reported in NPPES; status is on the state search - Practice location
- 9495 SW Locust St Ste G, Portland, OR 97223
- Phone
- (971) 314-4522
- Enumerated
- Aug 7, 2012
- Record last updated
- Nov 27, 2024
- Fax
- (971) 314-4527
- Medicaid ID
- 110115607A MA
- Medicare enrollment
- Enrolled (PECOS I20241002002058); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 138 in Oregon → Look up another NPI →
Also registered at 9495 SW Locust St Ste G
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Robert Matheson, M.D.Research Study Specialist1457554883
- Berhane Mebratu, NPNurse Practitioner1043718927
Verify Patan Gultawatvichai in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOregon Medical Board
Search for license MD221300Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
26% fewer Medicare Part D claims than the average hematology & oncology physician in 2024
649 Medicare Part D claims for 153 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 27% of claims. 47 claims were for opioids.
Most prescribed
- Eliquis100 claims
- Dexamethasone49 claims
- Prednisone47 claims
- Prochlorperazine Maleate39 claims
- Xtandi32 claims
- Abiraterone Acetate29 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: $606.22
20 payments; by number, the most common kind was food and beverage; the largest payer was Aveo Pharmaceuticals, Inc. The 8,560 providers of this specialty with any payment received $7,481.41 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
- Oncology Institute OR A Professional CorporationPortland, OR
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Patan Gultawatvichai among 138 hematology & oncology physician records in Oregon
Patan Gultawatvichai, M.D. is one of 138 hematology & oncology physician records with a practice address in Oregon. 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 2012, is newer than 77% of them.
- NPI issued2012 · 77% of these records are older, 22% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 70% of these records are
- Graduated2008 · median 2001 among the 97 with a school on file
- Record last updated2024 · 56% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0003X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hematology & Oncology Physician providers in Oregon
There are 138 hematology & oncology physician records in Oregon.
All 138 in Oregon → Every provider in Portland → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- Edward Chang, M.D.Tigard, OR 972231376546309
- Anthony Pham, M.D.Tigard, OR 972231790913994
- Richard Zinke, M.D.Tigard, OR 972231356667893
- Jay Andersen, M.D.Portland, OR 972251922001023
- Daniel Gruenberg, M.D.Portland, OR 972251467455238
- Lucy Langer, MDPortland, OR 972251689705402
- Emily Lin, MDPortland, OR 972251598149650
- Tony Ho, MDPortland, OR 972271417949124
Common questions
What is Patan Gultawatvichai, M.D.'s NPI number?
Patan Gultawatvichai, M.D.'s National Provider Identifier (NPI) is 1720335987, issued on Aug 7, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Patan Gultawatvichai, M.D. located?
The NPPES record lists a practice address at 9495 SW Locust St Ste G, Portland, OR, 97223. Phone: (971) 314-4522. Providers update this record themselves, so call before visiting.
How can I verify Patan Gultawatvichai, M.D.'s license?
NPPES lists Oregon license number MD221300, 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 Patan Gultawatvichai, M.D. prescribe under Medicare Part D?
In 2024, Patan Gultawatvichai, M.D. had 649 Medicare Part D claims for 153 beneficiaries; the average among hematology & oncology physician prescribers was 877. 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.