Dr. Christopher Lee Corless , MD
Pathology - Anatomic Pathology โข Portland, OR
3181 Sw Sam Jackson Park Rd
Portland, OR 972393011
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
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Dr. Christopher Corless is listed in NPPES under Pathology - Anatomic Pathology.
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NPI assigned on July 31, 2006; this date does not establish years in practice.
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Published CMS data list 167 Original Medicare Part B services in 2024.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Published rows only; this is not a quality measure.
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Published Part B service records, 2024:
- G0452 โ Molecular pathology procedure; physician interpretation and report: 73 service units.
- 88381 โ Preparation of specimen, manual: 67 service units.
- 88342 โ Special stained specimen slides to examine tissue, initial procedure: 27 service units.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Units differ by code; these are not visits or a measure of quality.
CPTยฎ only copyright 2023 American Medical Association. All rights reserved. Service names are shortened from CPT Consumer Friendly Descriptors (CMS data, 2024). CPT notice
See the full table ยท Guide: How to read Medicare Part B data
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Fewer Medicare Part B services than 85% of clinicians listed under Pathology - Anatomic Pathology in Portland, OR (2024, 16 clinicians with data). Median for this group: 514. Middle half: 355 to 1,111.
Fewer Medicare Part B services than 85% of clinicians listed under Pathology - Anatomic Pathology in Oregon (2024, 18 clinicians with data). Median for this group: 502. Middle half: 389 to 1,038.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Billing and prescribing volume is not a quality rating.
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Medicare Part B services went from 430 in 2020 to 167 in 2024.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2020โ2024.
Practice Location & Contact Primary Location
3181 Sw Sam Jackson Park Rd
Portland, OR 972393011
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
What Public CMS Data Show
Pathology - Anatomic Pathology: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
81 people with Original Medicare in 2024
It gives a sense of how many people with Medicare this clinician treated that year.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider, 2024.
Medicare-allowed amount
About $6,002 in 2024
The total amount Medicare approved for these services in 2024. It includes what Medicare paid and what patients or their other insurance owed, such as the deductible and coinsurance.
It shows the total cost of this clinician's Original Medicare services under Medicare's fee rules.
What this does not show: Medicare-allowed amount
This is not the clinician's income. Part of it can go to a clinic or group practice, staff, equipment or drugs. It is not the price you will pay.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024.
Paid by Medicare
About $4,835 in 2024
The part of the Medicare-allowed amount that Medicare itself paid in 2024, after patients' deductibles and coinsurance.
The gap between the allowed amount and this number is roughly what patients and their other insurance paid.
What this does not show: Paid by Medicare
This is not the clinician's income and not a measure of quality.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024.
Industry payments (Open Payments)
Fewer than 11 payment records totaling $4,230.00 in 2025
Drug and medical device companies must report certain payments to doctors and some other clinicians to CMS, such as meals, travel, speaking fees or research funding.
It shows reported financial ties between this clinician and companies. You can ask your clinician about them.
These records are submitted by drug and medical device companies, and a reported payment does not necessarily mean the financial relationship is improper.
General: payments not tied to research, such as meals, travel, consulting or speaking fees.
A reported payment does not necessarily mean the financial relationship is improper. Research payments can go to a hospital or university for a study the clinician leads, not to the clinician personally. Clinicians can dispute records with the company that reported them.
Source: CMS Open Payments, program year 2025.
NPI first issued
2006
The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.
What this does not show: NPI first issued
NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.
Source: CMS NPPES NPI Registry.
Medicare assignment not listed
CMS data do not show whether this clinician accepts Medicare assignment. This does not mean they do not accept Medicare. Ask the office.
Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.
Source: CMS Doctors and Clinicians; Medicare.gov, โDoes your provider accept Medicare as full payment?โ
No telehealth indicator
CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.
Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.
Compared with the same specialty in Portland and Oregon
Billing and prescribing volume is not a quality rating.
Medicare Part B services
Fewer Medicare Part B services than 85% of clinicians listed under Pathology - Anatomic Pathology in Portland, OR (2024, 16 clinicians with data). Median for this group: 514. Middle half: 355 to 1,111.
Fewer Medicare Part B services than 85% of clinicians listed under Pathology - Anatomic Pathology in Oregon (2024, 18 clinicians with data). Median for this group: 502. Middle half: 389 to 1,038.
Medicare-allowed amount
A lower Medicare-allowed amount than 90% of clinicians listed under Pathology - Anatomic Pathology in Portland, OR (2024, 16 clinicians with data). Median for this group: $23,442. Middle half: $16,784 to $50,190.
A lower Medicare-allowed amount than 90% of clinicians listed under Pathology - Anatomic Pathology in Oregon (2024, 18 clinicians with data). Median for this group: $23,442. Middle half: $15,310 to $47,414.
Paid by Medicare
A lower Medicare payment amount than 90% of clinicians listed under Pathology - Anatomic Pathology in Portland, OR (2024, 16 clinicians with data). Median for this group: $18,731. Middle half: $13,404 to $39,862.
A lower Medicare payment amount than 90% of clinicians listed under Pathology - Anatomic Pathology in Oregon (2024, 18 clinicians with data). Median for this group: $18,731. Middle half: $12,256 to $37,663.
27 active clinicians are listed under Pathology - Anatomic Pathology with a practice address in Portland, OR (31 in Oregon).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Portland
0% of these 27 clinicians have the CMS telehealth indicator.
63% of these 27 clinicians are listed by CMS as accepting Medicare assignment.
CMS data by year
Changes may reflect reporting, coverage or privacy limits, not changes in care quality.
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Medicare Part B services
Medicare Part B services decreased 61% from 430 in 2020 to 167 in 2024.
- 2020: 430
- 2021: 391
- 2022: 501
- 2023: 341
- 2024: 167
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Medicare-allowed amount
Medicare-allowed amount decreased 45% from $10,862 in 2020 to $6,002 in 2024.
- 2020: $10,862
- 2021: $14,660
- 2022: $18,429
- 2023: $12,353
- 2024: $6,002
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Paid by Medicare
Paid by Medicare decreased 44% from $8,656 in 2020 to $4,835 in 2024.
- 2020: $8,656
- 2021: $11,697
- 2022: $14,759
- 2023: $9,887
- 2024: $4,835
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Industry payments (Open Payments)
Industry payments (Open Payments) decreased 39% from $6,937.67 in 2019 to $4,230.00 in 2025.
- 2019: $6,937.67
- 2020: $8,902.24
- 2021: $7,830.41
- 2023: $4,230.00
- 2025: $4,230.00
Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Open Payments (2025), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo ยท Report an error.
Pharma & Medical Device Financial Disclosures
Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments
Program year 2025 (payments made January 1 โ December 31, 2025): fewer than 11 records totaling $4,230.00.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Cepheid |
Consulting Fee
Cash or cash equivalent
|
โ | General | $4,230.00 |
Source: CMS Open Payments, program year 2025, released June 30, 2026.
Performed Procedures & Service Volume
CPTยฎ is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2016โ2023 American Medical Association. All rights reserved. Applicable FARS/HHSARS apply. Descriptions of CPT codes are the AMA's CPT Consumer Friendly Descriptors as published by CMS in the Medicare Physician & Other Practitioners โ by Provider and Service data, 2017โ2024; they are plain-language summaries, not for clinical coding or documentation. HCPCS Level II codes and descriptions are from CMS. Fee schedules, relative value units, conversion factors and/or related components are not assigned by the AMA, are not part of CPT, and the AMA is not recommending their use. The AMA does not directly or indirectly practice medicine or dispense medical services. The AMA assumes no liability for data contained or not contained herein.
| HCPCS Code | Services | Patients | Submitted Charge | Medicare Allowed |
|---|---|---|---|---|
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G0452
Molecular pathology procedure; physician interpretation and report
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73 | 71 | $206.14 | $47.63 |
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88381
Preparation of specimen, manual
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67 | 67 | $74.55 | $23.41 |
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88342
Special stained specimen slides to examine tissue, initial procedure
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27 | 27 | $110.70 | $35.43 |
Source: CMS Part B by Provider and Service, 2024; services under 11 beneficiaries omitted by CMS. Privacy limits
Submitted charges are billed amounts, not a price quote for your visit.
Specialties & License Numbers Reported to NPPES
NUCC Taxonomy Code: 207ZP0101X
A pathologist deals with the causes and nature of disease and contributes to diagnosis, prognosis and treatment through knowledge gained by the laboratory application of the biologic, chemical and physical sciences. A pathologist uses information gathered from the microscopic examination of tissue specimens, cells and body fluids, and from clinical laboratory tests on body fluids and secretions for the diagnosis, exclusion and monitoring of disease.
Additional State Medicaid & Healthcare Payer Identifiers
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Pathology - Anatomic Pathology & Clinical Pathology
Doctor of Medicine (M.D.)
Pathology - Anatomic Pathology & Clinical Pathology
Doctor of Medicine (M.D.)
Pathology - Anatomic Pathology & Clinical Pathology
Doctor of Medicine (M.D.)
Pathology - Anatomic Pathology
Doctor of Medicine (M.D.)
Pathology - Hematology
Doctor of Medicine (M.D.)
Pathology - Anatomic Pathology & Clinical Pathology
Doctor of Medicine (M.D.)
Career & Practice History
NPI enumerated July 31, 2006.
No changes to the name, practice address, taxonomy or NPI status in this record have been observed in the monthly NPPES data files from January 2017 to August 2026.
NPI Administrative Meta
Other Pathology - Anatomic Pathology Specialists in Portland
- Yan Li
- Dr. Qiuying Shi, MD
- Dr. James Davis, MD
- Dr. Brian Mau, MD
- Dr. Ozlen Saglam, MD
- Dr. Marcela Riveros Angel, MD
Mailing Address
4904 Sw Dosch Park Ln
Portland, OR 972391288