William Ortiz, MD
Internal Medicine Physician · Caribou, ME
William Ortiz, MD is an internal medicine physician with a practice address in Caribou, Maine, and NPI 1881781615, issued on Oct 5, 2006. Check the license on the Maine Board of Licensure in Medicine; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- William Ortiz
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 156739 MA
Self-reported in NPPES; status is on the state search - Practice location
- 46 Sweden St, Caribou, ME 04736
- Phone
- (207) 999-1180
- Enumerated
- Oct 5, 2006
- Record last updated
- Nov 26, 2013 (not updated in 13 years: call before relying on the address or phone)
- Fax
- (413) 794-1629
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 597 in Maine → Look up another NPI →
Verify William Ortiz in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaine Board of Licensure in MedicineCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
William Ortiz among 597 internal medicine physician records in Maine
William Ortiz, MD is one of 597 internal medicine physician records with a practice address in Maine. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2006, is newer than 6% of them.
- NPI issued2006 · 6% of these records are older, 44% newer
- In a Medicare fileNo · 77% of these records are
- In the CMS Doctors and Clinicians fileNo · 62% of these records are
- Record last updated2013 · 60% 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 Maine practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
7 internal medicine physician records list a practice address in Caribou
They are 7 of the 313 NPPES records with a practice address in Caribou, and 597 internal medicine physician records in Maine. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 597 in Maine → Every provider in Caribou → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Yonas Ateshim, M.D.Caribou, ME 047361538476916
- John Bouchard, M.D.Caribou, ME 047361447228010
- Irene Djuanda, M.D.Caribou, ME 047361629046537
- Seayong Kang, M.D.Caribou, ME 047361881705119
- Ravinder Panesar, M.D.Caribou, ME 047361184692493
- Alvin WycocoCaribou, ME 047361629347752
- Hassan Abouleish, MDHoulton, ME 047301255300307
- Claude Boma, M.D.Houlton, ME 047301386612372
Common questions
What is William Ortiz, MD's NPI number?
William Ortiz, MD's National Provider Identifier (NPI) is 1881781615, issued on Oct 5, 2006. An NPI identifies a provider in billing; it is not a license.
Where is William Ortiz, MD located?
The NPPES record lists a practice address at 46 Sweden St, Caribou, ME, 04736. Phone: (207) 999-1180. Providers update this record themselves, so call before visiting.
How can I verify William Ortiz, MD's license?
Search the Maine Board of Licensure in Medicine at https://www.maine.gov/md/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.