Robert Michael Massanari, M.D.
Internal Medicine Physician · Lynden, WA
Robert Michael Massanari, M.D. is an internal medicine physician with a practice address in Lynden, Washington, and NPI 1952540544, issued on Feb 5, 2009. Check the license on the Washington Medical Commission; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Robert Michael Massanari
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 4301056935 MI
Self-reported in NPPES; status is on the state search - Practice location
- 930 Hemlock Loop, Lynden, WA 98264
- Phone
- (360) 922-0063
- Enumerated
- Feb 5, 2009
- Record last updated
- Feb 5, 2009 (not updated in 17 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 3,079 in Washington → Look up another NPI →
Verify Robert Michael Massanari in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical CommissionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Robert Michael Massanari among 3,079 internal medicine physician records in Washington
Robert Michael Massanari, M.D. is one of 3,079 internal medicine physician records with a practice address in Washington. 75% 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 2009, is newer than 58% of them.
- NPI issued2009 · 58% of these records are older, 38% newer
- In a Medicare fileNo · 75% of these records are
- In the CMS Doctors and Clinicians fileNo · 60% of these records are
- Record last updated2009 · 63% 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 Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Internal Medicine Physician providers in Washington
There are 3,079 internal medicine physician records in Washington. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 3,079 in Washington → Every provider in Lynden → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Chad Cleven, DOMarysville, WA 982701700987856
- Santosa Ho, MDMarysville, WA 982701053378018
- Kathleen Hughes, MDMarysville, WA 982701962512996
- Amandeep KaurMarysville, WA 982701356775266
- Olga Kennedy, MDMarysville, WA 982701699742122
- John Lank, MDLake Stevens, WA 982581942275797
- Toshiko Magnus, MDMarysville, WA 982701750358875
- Mandeep Saini, MDMarysville, WA 982701912974031
Common questions
What is Robert Michael Massanari, M.D.'s NPI number?
Robert Michael Massanari, M.D.'s National Provider Identifier (NPI) is 1952540544, issued on Feb 5, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Robert Michael Massanari, M.D. located?
The NPPES record lists a practice address at 930 Hemlock Loop, Lynden, WA, 98264. Phone: (360) 922-0063. Providers update this record themselves, so call before visiting.
How can I verify Robert Michael Massanari, M.D.'s license?
Search the Washington Medical Commission at https://wahelms.my.site.com/s/license-search. 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.