Anna Helen Grosz, M.D.
Otolaryngology Physician · Clackamas, OR
Anna Helen Grosz, M.D. is an otolaryngology physician with a practice address in Clackamas, Oregon, and NPI 1144398017, issued on Dec 1, 2006. Check the license (Oregon MD27425, as entered in NPPES) on the Oregon Medical Board; the Medicare figures below come from public CMS files.
- Name
- Anna Helen Grosz
- Credential
- M.D.
- Primary taxonomy
- Otolaryngology Physician 207Y00000X
- License number
- MD27425 OR
Self-reported in NPPES; status is on the state search - Practice location
- 9900 SE Sunnyside RD, Clackamas, OR 97015
- Phone
- (503) 571-3995
- Enumerated
- Dec 1, 2006
- Record last updated
- Feb 4, 2022
- Medicare enrollment
- Enrolled (PECOS I20080411000143); accepts Medicare assignment
- Medical or professional school
- Perelman School Of Med At The University Of Pennsylvania, 2002
- Entity
- Type 1 · individual
8 nearest otolaryngology physician records → All 164 in Oregon → Look up another NPI →
Also registered at 9900 SE Sunnyside RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Douglas Ackerman, M.D.Urology Physician1174636344
- Kamran Aghaie, MDGastroenterology Physician1104056936
- Joshua Armagost, RNRegistered Nurse First Assistant1558513135
- Jeffrey Barton, M.D.Colon & Rectal Surgery Physician1295988350
- Tracy Barton, RPHPharmacist1265804421
- Natalie Baxter, PA-CMedical Physician Assistant1265675599
Verify Anna Helen Grosz in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOregon Medical Board
Search for license MD27425Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
67% fewer Medicare Part D claims than the average otolaryngology physician in 2024
181 Medicare Part D claims for 85 beneficiaries, against an average of 541 among the 8,339 providers of this specialty who prescribed in Part D. Brand-name drugs were 29% of claims.
Most prescribed
- Prednisolone Acetate52 claims
- Ofloxacin33 claims
- Azelastine Hcl29 claims
- Prednisone11 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.
Bills Medicare through one group practice
- Kaiser Foundation Health Plan OF The NorthwestClackamas, OR
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Anna Helen Grosz among 164 otolaryngology physician records in Oregon
Anna Helen Grosz, M.D. is one of 164 otolaryngology physician records with a practice address in Oregon. 76% 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 14% of them.
- NPI issued2006 · 14% of these records are older, 41% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileYes · 65% of these records are
- Graduated2002 · median 2003 among the 107 with a school on file
- Record last updated2022 · 57% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Y00000X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Otolaryngology Physician providers in Oregon
There are 164 otolaryngology physician records in Oregon.
All 164 in Oregon → Every provider in Clackamas → Otolaryngology Physician nationwide →
The 8 otolaryngology physician records with the nearest ZIP codes
- Mitch Brock, MDClackamas, OR 970151295847440
- John Goddard, MDClackamas, OR 970151730278375
- Sharon Higgins, M.D.Clackamas, OR 970151396850806
- Geoffrey Lawrence, MDClackamas, OR 970151346354545
- Kathryn LeavittClackamas, OR 970151467871277
- Aleen Lee, MDClackamas, OR 970151134447741
- Clee Lloyd, MDClackamas, OR 970151437222460
- John Richards, MDClackamas, OR 970151891284584
Common questions
What is Anna Helen Grosz, M.D.'s NPI number?
Anna Helen Grosz, M.D.'s National Provider Identifier (NPI) is 1144398017, issued on Dec 1, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Anna Helen Grosz, M.D. located?
The NPPES record lists a practice address at 9900 SE Sunnyside RD, Clackamas, OR, 97015. Phone: (503) 571-3995. Providers update this record themselves, so call before visiting.
How can I verify Anna Helen Grosz, M.D.'s license?
NPPES lists Oregon license number MD27425, 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 Anna Helen Grosz, M.D. prescribe under Medicare Part D?
In 2024, Anna Helen Grosz, M.D. had 181 Medicare Part D claims for 85 beneficiaries; the average among otolaryngology physician prescribers was 541. 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.