Annie Seapan Mack, MD
Pediatrics Physician · Portland, OR
Annie Seapan Mack, MD is a pediatrics physician with a practice address in Portland, Oregon, and NPI 1932125184, issued on Jul 14, 2006. Check the license (Oregon MD27041, as entered in NPPES) on the Oregon Medical Board; the Medicare figures below come from public CMS files.
- Name
- Annie Seapan Mack
- Credential
- MD
- Primary taxonomy
- Pediatrics Physician 208000000X
- License number
- MD27041 OR
Self-reported in NPPES; status is on the state search - Practice location
- 9555 SW Barnes RD Ste 255, Portland, OR 97225
- Phone
- (503) 908-1590
- Enumerated
- Jul 14, 2006
- Record last updated
- Apr 3, 2024
- Fax
- (503) 723-2862
- Medicaid ID
- 500633407 OR
- Medicare enrollment
- Enrolled (PECOS I20100804000670); accepts Medicare assignment
- Medical or professional school
- University Of Texas Medical School At San Antonio, 2001
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest pediatrics physician records → All 861 in Oregon → Look up another NPI →
Also registered at 9555 SW Barnes RD Ste 255
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Aoife O'Sullivan, MDFamily Medicine Physician1073657003
Verify Annie Seapan Mack in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOregon Medical Board
Search for license MD27041Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
5.7 times the Medicare Part D claims of the average pediatrics physician in 2024
2,151 Medicare Part D claims for 295 beneficiaries, against an average of 375 among the 5,609 providers of this specialty who prescribed in Part D. 83 claims were for opioids.
Most prescribed
- Atorvastatin Calcium127 claims
- Levothyroxine Sodium103 claims
- Amlodipine Besylate73 claims
- Losartan Potassium71 claims
- Lisinopril64 claims
- Trazodone Hcl63 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
- Advanced Internal Medicine Group PCPortland, OR
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Annie Seapan Mack among 861 pediatrics physician records in Oregon
Annie Seapan Mack, MD is one of 861 pediatrics physician records with a practice address in Oregon. 20% 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 13% of them.
- NPI issued2006 · 13% of these records are older, 51% newer
- In a Medicare fileYes · 20% of these records are
- In the CMS Doctors and Clinicians fileYes · 9% of these records are
- Graduated2001 · median 2013 among the 75 with a school on file
- Record last updated2024 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208000000X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Pediatrics Physician providers in Oregon
There are 861 pediatrics physician records in Oregon.
All 861 in Oregon → Every provider in Portland → Pediatrics Physician nationwide →
The 8 pediatrics physician records with the nearest ZIP codes
- Hugh Alexander, MDPortland, OR 972251811986813
- Joanne Devore, MDPortland, OR 972251023007036
- Robert Gillespie, MDPortland, OR 972251043209067
- Janeene Gordon, M.D.Portland, OR 972251659331197
- Iris Han, MDPortland, OR 972251578552584
- Natasha Pereira, MDPortland, OR 972251720026701
- Teri Pettersen, MDPortland, OR 972251780673798
- Deborah Purcell, MDPortland, OR 972251598723678
Common questions
What is Annie Seapan Mack, MD's NPI number?
Annie Seapan Mack, MD's National Provider Identifier (NPI) is 1932125184, issued on Jul 14, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Annie Seapan Mack, MD located?
The NPPES record lists a practice address at 9555 SW Barnes RD Ste 255, Portland, OR, 97225. Phone: (503) 908-1590. Providers update this record themselves, so call before visiting.
How can I verify Annie Seapan Mack, MD's license?
NPPES lists Oregon license number MD27041, 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 Annie Seapan Mack, MD prescribe under Medicare Part D?
In 2024, Annie Seapan Mack, MD had 2,151 Medicare Part D claims for 295 beneficiaries; the average among pediatrics physician prescribers was 375. 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.