ALEXANDRA HARTMAN MD
NPI 1639708753
Emergency Medicine in Portland, OR
About Alexandra Hartman Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ALEXANDRA HARTMAN MD (NPI 1639708753) is an individual emergency medicine provider in Portland, Oregon, licensed in Oregon (MD224158) and active in the NPI registry since April 2020. She is enrolled in Medicare PECOS, is affiliated with Adventist Health Portland, and maintains a secondary practice location in Hillsboro.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Alexandra Hartman Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
2Medicare enrollment records show Alexandra Hartman reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Portland, OR 97216
- Reassigned Medicare billing, Oregon enrollment
- 331 clinicians in this Medicare group
Great Neck, NY 11021
- Reassigned Medicare billing, New York enrollment
- 9,353 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 2
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Adventist Health Portland
Acute Care Hospitals · Portland, ORPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 97216 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
PORTLAND, OR 97216
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Alexandra Hartman's NPI number?
The NPI number for Alexandra Hartman is 1639708753. It was assigned to this individual provider in the NPPES registry on April 2, 2020.
Where is Alexandra Hartman located?
Alexandra Hartman practices at 10123 SE Market St, Portland, OR 97216. The listed phone number is (503) 257-2500.
What is Alexandra Hartman's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Alexandra Hartman enrolled in Medicare?
Yes. Alexandra Hartman is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Alexandra Hartman's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Alexandra Hartman reassigns Medicare benefits to 2 organizations: Portland Adventist Medical Center (Portland, OR) and North Shore-Lij Medical PC (Great Neck, NY). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Alexandra Hartman's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Alexandra Hartman accept?
Health plans from Moda Health Plan, Inc. list Alexandra Hartman as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Alexandra Hartman affiliated with any hospitals?
According to CMS data, Alexandra Hartman is affiliated with Adventist Health Portland.
When was this NPI record last updated?
The NPPES record for Alexandra Hartman was last updated on July 28, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Alexandra Hartman, MD · NPI 1639708753
Emergency Medicine physician in Portland, Oregon. Individual provider, active in the CMS NPPES registry since April 2, 2020.
## Identity
- **NPI:** 1639708753 (Entity type: Individual)
- **Enumerated:** April 2, 2020
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** MD224158 (Oregon)
- **Sole proprietor:** No
## Practice location
- **Address:** 10123 SE MARKET ST, Portland, OR 97216-2532
- **Phone:** (503) 257-2500
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Portland Adventist Medical Center (NPI 1437925310, Portland, OR); North Shore-Lij Medical PC (NPI 1053688572, Great Neck, NY) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Oregon Health Sciences University School Of Medicine, class of 2020
## Record status
- **NPPES last updated:** July 28, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1639708753) · Data from the CMS NPPES public registry.