Caroline Barker , PA
Physician Assistant • Tigard, OR
18081 Sw Lower Boones Ferry Rd Ste 2
Tigard, OR 972247290
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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Caroline Barker is listed in NPPES under Physician Assistant.
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NPI assigned on March 1, 2021; this date does not establish years in practice.
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Published CMS data list 75 Original Medicare Part B services in 2024.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Published rows only; this is not a quality measure.
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Published Part B service records, 2024:
- 99214 — Established patient outpatient office visit: 26 service units.
- 87804 — Detection test by immunoassay with direct visual observation for influenza virus: 24 service units.
- U0002 — 2019-ncov coronavirus, sars-cov-2/2019-ncov (covid-19), any technique, multiple types or subtypes (includes all targets), non-cdc: 14 service units.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Units differ by code; these are not visits or a measure of quality.
CPT® only copyright 2023 American Medical Association. All rights reserved. Service names are shortened from CPT Consumer Friendly Descriptors (CMS data, 2024). CPT notice
See all 4 records in the table · Guide: How to read Medicare Part B data
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Published CMS data list 38 Medicare Part D prescriptions, including refills, in 2024.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024. Published rows only; this is not a quality measure.
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Published Part D records, 2024:
- Doxycycline Hyclate — 21 prescription fills, including refills.
- Fluticasone Propionate — 17 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See the full table · Guide: How to read Medicare Part D prescriber data
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Fewer Medicare Part B services than 80% of clinicians listed under Physician Assistant in Tigard, OR (2024, 33 clinicians with data). Median for this group: 268. Middle half: 112 to 611.
Fewer Medicare Part B services than 80% of clinicians listed under Physician Assistant in Oregon (2024, 1,144 clinicians with data). Median for this group: 218. Middle half: 98 to 498.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Billing and prescribing volume is not a quality rating.
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Medicare Part B services went from 159 in 2021 to 75 in 2024.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2021–2024.
Practice Location & Contact Primary Location
18081 Sw Lower Boones Ferry Rd Ste 2
Tigard, OR 972247290
NPPES lists 1 additional practice-address record in Vancouver, WA. See the list
Source: CMS NPPES NPI Registry, practice location records; release date unavailable.
Listings do not confirm current availability, employment or a shared ownership network.
What Public CMS Data Show
Physician Assistant: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
46 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 – by Provider, 2024.
Medicare-allowed amount
About $3,942 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 – by Provider and Service, 2024.
Paid by Medicare
About $2,449 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 – by Provider and Service, 2024.
30-day fills
41 standardized 30-day fills in 2024
CMS converts prescriptions to 30-day supplies so they can be compared. A 90-day prescription counts as about three 30-day fills.
What this does not show: 30-day fills
It is not a count of patients and not a measure of quality.
Part D drug cost
$335 in 2024
The total cost of these prescriptions in 2024, paid by Medicare drug plans, patients and other payers together.
It shows the total spending on drugs this clinician prescribed, not what any one patient paid.
What this does not show: Part D drug cost
A higher cost often reflects the type of medicines a specialty uses. It is not your out-of-pocket cost and not a measure of quality.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024.
Open Payments general payments, program year 2025
All general payments: $254.91 across 12 records.
By nature of payment
- Food and Beverage: $254.91 across 12 records.
Reporting-company totals
- ABBVIE INC.: $254.91 across 12 records.
A reported payment does not necessarily mean the financial relationship is improper and is not a measure of care quality. Clinicians can review and dispute these records.
Source: Calculated by T-MedInfo from CMS Open Payments general-payment records for program year 2025 (published June 30, 2026).
NPI first issued
2021
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, “Does your provider accept Medicare as full payment?”
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.
Can order Medicare-covered services
CMS lists Caroline Barker as eligible to order or refer durable medical equipment (DME) for people with Medicare.
Medicare pays for these items and services only when they are ordered by an eligible clinician.
What this does not show: Can order Medicare-covered services
It does not mean the clinician offers these services directly.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Compared with the same specialty in Tigard and Oregon
Billing and prescribing volume is not a quality rating.
Medicare Part B services
Fewer Medicare Part B services than 80% of clinicians listed under Physician Assistant in Tigard, OR (2024, 33 clinicians with data). Median for this group: 268. Middle half: 112 to 611.
Fewer Medicare Part B services than 80% of clinicians listed under Physician Assistant in Oregon (2024, 1,144 clinicians with data). Median for this group: 218. Middle half: 98 to 498.
Medicare-allowed amount
A lower Medicare-allowed amount than 80% of clinicians listed under Physician Assistant in Tigard, OR (2024, 33 clinicians with data). Median for this group: $19,790. Middle half: $10,399 to $27,529.
A lower Medicare-allowed amount than 85% of clinicians listed under Physician Assistant in Oregon (2024, 1,144 clinicians with data). Median for this group: $15,959. Middle half: $7,110 to $33,008.
Paid by Medicare
A lower Medicare payment amount than 85% of clinicians listed under Physician Assistant in Tigard, OR (2024, 33 clinicians with data). Median for this group: $12,491. Middle half: $6,992 to $20,595.
A lower Medicare payment amount than 85% of clinicians listed under Physician Assistant in Oregon (2024, 1,144 clinicians with data). Median for this group: $11,156. Middle half: $5,029 to $23,443.
Medicare Part D prescriptions
Fewer Part D prescriptions than 85% of clinicians listed under Physician Assistant in Tigard, OR (2024, 37 clinicians with data). Median for this group: 257. Middle half: 89 to 755.
Fewer Part D prescriptions than 85% of clinicians listed under Physician Assistant in Oregon (2024, 1,336 clinicians with data). Median for this group: 340. Middle half: 96 to 1,131.
Part D drug cost
A lower Part D drug cost than 90% of clinicians listed under Physician Assistant in Tigard, OR (2024, 37 clinicians with data). Median for this group: $5,673. Middle half: $1,222 to $35,701.
A lower Part D drug cost than 85% of clinicians listed under Physician Assistant in Oregon (2024, 1,336 clinicians with data). Median for this group: $8,538. Middle half: $984 to $101,656.
50 active clinicians are listed under Physician Assistant with a practice address in Tigard, OR (2,095 in Oregon).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Tigard
26% of these 50 clinicians have the CMS telehealth indicator.
72% of these 50 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 53% from 159 in 2021 to 75 in 2024.
- 2021: 159
- 2022: 357
- 2023: 256
- 2024: 75
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Medicare-allowed amount
Medicare-allowed amount decreased 61% from $10,201 in 2021 to $3,942 in 2024.
- 2021: $10,201
- 2022: $24,075
- 2023: $18,632
- 2024: $3,942
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Paid by Medicare
Paid by Medicare decreased 73% from $9,156 in 2021 to $2,449 in 2024.
- 2021: $9,156
- 2022: $19,067
- 2023: $13,870
- 2024: $2,449
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Medicare Part D prescriptions
Medicare Part D prescriptions went from 12 in 2021 to 38 in 2024.
- 2021: 12
- 2022: 88
- 2023: 24
- 2024: 38
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30-day fills
30-day fills went from 12 in 2021 to 41 in 2024.
- 2021: 12
- 2022: 89
- 2023: 24
- 2024: 41
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Part D drug cost
Part D drug cost went from $224 in 2021 to $335 in 2024.
- 2021: $224
- 2022: $889
- 2023: $2,425
- 2024: $335
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Industry payments (Open Payments)
Industry payments (Open Payments) went from $77.55 in 2022 to $254.91 in 2025.
- 2022: $77.55
- 2023: $106.82
- 2024: $173.60
- 2025: $254.91
Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Medicare Part D Prescribers (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 · 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 – December 31, 2025): 12 records totaling $254.91.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| ABBVIE INC. |
Food and Beverage
In-kind items and services
|
BOTOX | General | $141.16 |
| ABBVIE INC. |
Food and Beverage
In-kind items and services
|
— | General | $25.86 |
| ABBVIE INC. |
Food and Beverage
In-kind items and services
|
BOTOX | General | $20.48 |
| ABBVIE INC. |
Food and Beverage
In-kind items and services
|
BOTOX | General | $18.46 |
| ABBVIE INC. |
Food and Beverage
In-kind items and services
|
BOTOX | General | $9.68 |
| ABBVIE INC. |
Food and Beverage
In-kind items and services
|
— | General | $8.10 |
| ABBVIE INC. |
Food and Beverage
In-kind items and services
|
BOTOX | General | $7.73 |
| ABBVIE INC. |
Food and Beverage
In-kind items and services
|
— | General | $7.58 |
| ABBVIE INC. |
Food and Beverage
In-kind items and services
|
BOTOX | General | $7.05 |
| ABBVIE INC. |
Food and Beverage
In-kind items and services
|
BOTOX | General | $3.64 |
| ABBVIE INC. |
Food and Beverage
In-kind items and services
|
BOTOX | General | $3.50 |
| ABBVIE INC. |
Food and Beverage
In-kind items and services
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BOTOX | General | $1.67 |
Source: CMS Open Payments, program year 2025, released June 30, 2026.
Performed Procedures & Service Volume
CPT® is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2020–2023 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 – by Provider and Service data, 2021–2024; 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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99214
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
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26 | 25 | $320.00 | $108.13 |
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87804
Detection test by immunoassay with direct visual observation for influenza virus
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24 | 11 | $46.55 | $16.22 |
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U0002
2019-ncov coronavirus, sars-cov-2/2019-ncov (covid-19), any technique, multiple types or subtypes (includes all targets), non-cdc
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14 | 13 | $59.00 | $50.28 |
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81002
Urinalysis, manual test
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11 | 11 | $20.00 | $3.41 |
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.
Medicare Part D Prescribing Profile & Medications
Medicare Part D prescriptions filled, including refills, in 2024.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Doxycycline Hyclate | Doxycycline Hyclate | 21 | 210 | $184.62 | 21 |
| Fluticasone Propionate | Fluticasone Propionate | 17 | 600 | $150.71 | 17 |
Source: CMS Part D by Provider and Drug, 2024; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits
Specialties & License Numbers Reported to NPPES
Self-certified to NPPES: 2024-10-30NUCC Taxonomy Code: 363A00000X
A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.
NUCC Taxonomy Code: 363A00000X
A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.
NUCC Taxonomy Code: 363A00000X
A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSSources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Secondary Practice Locations
595 W Columbia Way
Vancouver, WA 986603607
Phone: 3606901123
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 18081 SW LOWER BOONES FERRY RD STE 2, TIGARD, OR 972247290 (Tel: 5036733893)
Registered at 18081 SW LOWER BOONES FERRY RD STE 2, TIGARD, OR 972247290 (Tel: 5036733893)
Registered at 1825 HIGHWAY 34 E, NEWNAN, GA 302656423 (Tel: 7705022121)
Physician Assistant (license number reported to NPPES: GA 10506)
NPI status registered as active in NPPES database
Registered at 2507 PLANTERS COVE DR, LAWRENCEVILLE, GA 300444491 (Tel: 6786547444)
Registered at 2507 PLANTERS COVE DR, LAWRENCEVILLE, GA 300444491 (Tel: 6786547444)
Recorded as CAROLINE BARKER, PA
Student in an Organized Health Care Education/Training Program
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Physician Assistants in Tigard
- Marisa Adlesich, PA-C
- Heather Van Houten, PA-C
- Madeline Kauffman, PA-C
- Carin Montelongo, PA-C
- Rayna Donnelly, PA-C
- Michael Cunningham, PA-C
Mailing Address
18081 Sw Lower Boones Ferry Rd Ste 2
Tigard, OR 972247290
Phone: 5036733893