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DR. ANDREA MICHELLE KELLER BLAZIC D.O.
NPI 1629236146
Obstetrics & Gynecology in Astoria, OR

Active since May 30, 2008PECOS EnrolledAccepts Medicare Assignment
2265 EXCHANGE ST, ASTORIA, OR 97103(503) 338-7595(503) 325-4905 Get Directions Write a Review

NPPES record last updated: January 7, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jan 7, 2026, Dec 15, 2025, Mar 9, 2023 and 1 more (4 updates tracked since 2018).

About Dr. Andrea Michelle Keller Blazic D.o. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. ANDREA MICHELLE KELLER BLAZIC D.O. (NPI 1629236146) is an individual obstetrics & gynecology provider in Astoria, Oregon, licensed in Oregon (DO192445) and active in the NPI registry since May 2008. She is enrolled in Medicare PECOS, is affiliated with Columbia Memorial Hospital, and is a graduate of Other (2008).

NPPES Registry Identity

NPI1629236146
Entity TypeIndividualFemale
Primary Taxonomy207V00000X
Provider Legal NameDR. ANDREA MICHELLE KELLER BLAZICCredential: D.O.
Location Address2265 EXCHANGE STAstoria, OR 97103-3331
Mailing Address2111 Exchange StAstoria, OR 97103-3329 · (503) 325-4321
Phone(503) 338-7595
Fax(503) 325-4905
Sole ProprietorNo
Medical School CMSOtherGraduated 2008
Enumeration DateMay 30, 2008
Last NPPES UpdateJanuary 7, 20264 updates tracked since enumeration
NPPES CertifiedJanuary 7, 2026
✔ NPI 1629236146 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyObstetrics & GynecologyAllopathic & Osteopathic Physicians
Taxonomy Code207V00000X
License✔ Licensed in OR · DO192445
Definition
An obstetrician/gynecologist possesses special knowledge, skills and professional capability in the medical and surgical care of the female reproductive system and associated disorders. This physician serves as a consultant to other physicians and as a primary physician for women.
2265 EXCHANGE ST, Astoria, OR 97103
Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include BridgeSpan Health Company, Moda Health Plan, Inc., PacificSource Health Plans and more.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

Dr. Andrea Michelle Keller Blazic D.o. 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.

PECOS PAC ID6800044223
PECOS Enrollment IDI20191101002355
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

4

Medicare enrollment records show Andrea Keller Blazic reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Columbia Lutheran Charities
Same address
Critical Access
550 22ND ST
Astoria, OR 97103
  • Reassigned Medicare billing, Oregon enrollment
  • Also billed through NPI 1134146939 (Oregon)
  • 278 clinicians in this Medicare group
NPI 1700809761 (503) 338-7595
St. Charles Health System, Inc.
192 mi
Clinical
2542 NE COURTNEY DR
Bend, OR 97701
  • Reassigned Medicare billing, Oregon enrollment
  • 307 clinicians in this Medicare group
NPI 1780698696 (541) 706-2768
St. Charles Health System, Inc.
192 mi
Family Medicine
2500 NE NEFF RD
Bend, OR 97701
  • Reassigned Medicare billing, Oregon enrollment
  • 348 clinicians in this Medicare group
NPI 1023331303 (541) 382-4321
Obhg Oregon PC
2,288 mi
Obstetrics & Gynecology
777 LOWNDES HILL RD BLDG 1
Greenville, SC 29607
  • Reassigned Medicare billing, Oregon enrollment
  • 51 clinicians in this Medicare group
NPI 1528585148 (800) 967-2289

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Columbia Memorial Hospital

Critical Access Hospitals · Astoria, OR
OwnershipProprietary
CMS Certification Number381320
Location2111 Exchange StreetAstoria, OR 97103 · Clatsop County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 97103 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$126.25 typical visit price
range $54.96 – $166.64
Typical copayment $31.56 (range $13.74 – $41.66)
Most-billed visit code 99204
Established Patient
$68.64 typical visit price
range $17.68 – $136.19
Typical copayment $17.16 (range $4.42 – $34.04)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

MILAN KOPECKY
Physical Therapy Assistant
2265 EXCHANGE ST
ASTORIA, OR 97103
Clatsop County (503) 338-7555
SHANAH NELSON FNP
Nurse Practitioner (Family)
2265 EXCHANGE ST
ASTORIA, OR 97103
Clatsop County (503) 338-4050
RYAN CALDWELL
Physical Therapy Assistant
2265 EXCHANGE ST
ASTORIA, OR 97103
Clatsop County (503) 338-7555
DR. DANIEL CHARLES FABIANO MD
Orthopaedic Surgery (Sports Medicine)
2265 EXCHANGE ST
ASTORIA, OR 97103
Clatsop County (503) 338-4075
GREGORY M. SMITH PA-C
Physician Assistant
2265 EXCHANGE ST
ASTORIA, OR 97103
Clatsop County (503) 338-4050
AMBER AMARIS HULL D.O.
Pediatrics
2265 EXCHANGE ST
ASTORIA, OR 97103
Clatsop County (503) 325-7337
MR. TERRY DEAN HOLLOWELL FNP
Nurse Practitioner (Family)
2265 EXCHANGE ST
ASTORIA, OR 97103
Clatsop County (503) 338-4050
MRS. CARYN LYNN HILMES LCSW
Social Worker (Clinical)
2265 EXCHANGE ST
ASTORIA, OR 97103
Clatsop County (503) 338-4075

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 Andrea Keller Blazic's NPI number?

The NPI number for Andrea Keller Blazic is 1629236146. It was assigned to this individual provider in the NPPES registry on May 30, 2008.

Where is Andrea Keller Blazic located?

Andrea Keller Blazic practices at 2265 Exchange St, Astoria, OR 97103. The listed phone number is (503) 338-7595.

What is Andrea Keller Blazic's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.

Is Andrea Keller Blazic enrolled in Medicare?

Yes. Andrea Keller Blazic 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 Andrea Keller Blazic's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Andrea Keller Blazic reassigns Medicare benefits to 4 organizations: Columbia Lutheran Charities (Astoria, OR), St. Charles Health System, Inc. (Bend, OR), St. Charles Health System, Inc. (Bend, OR) and Obhg Oregon PC (Greenville, SC). 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 Andrea Keller Blazic's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Andrea Keller Blazic accept?

Health plans from BridgeSpan Health Company, Moda Health Plan, Inc., PacificSource Health Plans, Premera Blue Cross Blue Shield of Alaska and Providence Health Plan and 1 other insurer list Andrea Keller Blazic 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 Andrea Keller Blazic affiliated with any hospitals?

According to CMS data, Andrea Keller Blazic is affiliated with Columbia Memorial Hospital.

When was this NPI record last updated?

The NPPES record for Andrea Keller Blazic was last updated on January 7, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.