What is Carolyn Nixon's NPI number?

Carolyn Nixon's National Provider Identifier (NPI) is 1023249125, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Carolyn Nixon's specialty?

Carolyn Nixon is listed in the NPPES registry with a primary specialty of Medical Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).

Where is Carolyn Nixon located?

Carolyn Nixon's practice location on file with NPPES is 3181 Sw Sam Jackson Park Rd., Portland, OR 97239-3011.

What is Carolyn Nixon's phone number?

The practice phone number listed in the NPPES registry for Carolyn Nixon is (503) 494-7551.

Does Carolyn Nixon accept Medicare?

Carolyn Nixon is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.

Is Carolyn Nixon's NPI active?

Yes — Carolyn Nixon's NPI (1023249125) is active in the NPPES registry as of the last update on 2021-02-01.

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Carolyn Nixon

NPI 1023249125 · Medical Physician Assistant · Portland, OR

Carolyn Nixon is a Medical Physician Assistant provider in Portland, OR (NPI 1023249125).

Provider details

NPI number: 1023249125
Entity type: Individual
Primary specialty: Medical Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
Sex: Female
Sole proprietor: No
License: PA170105 (OR)

Practice location

3181 Sw Sam Jackson Park Rd.

Portland, OR 97239-3011

Phone: (503) 494-7551

Street-level locationGet directions

More OR providers

Mailing address

3181 Sw Sam Jackson Park Rd.

Portland, OR 97239-3011

Specialties & taxonomies

Medical Physician AssistantPrimary363AM0700XLicense PA170105 (OR)
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistant363A00000XLicense PA170105 (OR)
Physician Assistants & Advanced Practice Nursing Providers

Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)

Profile Score

Established profile(64/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure28% of score
17 yrs in NPPES registry
Profile completeness28% of score
100% of core fields populated
Practice footprint17% of score
1 documented practice location
Medicare service volume (vs. specialty peers)28% of score
79 Medicare services, 2024 (ranked within specialty)

Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.

What this provider does (Medicare)

Based on Medicare fee-for-service claims, 2024; not all care is captured.

Service (HCPCS)	Medicare services	Typical Medicare-allowed (2024)
Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213	51	$78
Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214	16	$112
New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203	12	$97

Typical Medicare-allowed amounts for these services range $78–$112 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.

What this provider prescribes (Medicare Part D)

Top drugs by Medicare Part D claim volume, 2024 · 6 distinct drugs on file.

Drug	Part D claims (2024)	Beneficiaries
Nitrofurantoin Monohyd/M-Crystbrand: Nitrofurantoin Mono-Macro	26	25
Nirmatrelvir/Ritonavirbrand: Paxlovid	19	19
Cephalexin	16	16
Amoxicillin	14	13
Ciprofloxacin Hcl	13	12
Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass	12	12

Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do not include cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means , never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.

Enumerated: 2009-08-06
Last updated: 2021-02-01
Certified: 2021-02-01

Frequently asked questions

What is Carolyn Nixon's NPI number?: Carolyn Nixon's National Provider Identifier (NPI) is 1023249125, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Carolyn Nixon's specialty?: Carolyn Nixon is listed in the NPPES registry with a primary specialty of Medical Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
Where is Carolyn Nixon located?: Carolyn Nixon's practice location on file with NPPES is 3181 Sw Sam Jackson Park Rd., Portland, OR 97239-3011.
What is Carolyn Nixon's phone number?: The practice phone number listed in the NPPES registry for Carolyn Nixon is (503) 494-7551.
Does Carolyn Nixon accept Medicare?: Carolyn Nixon is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
Is Carolyn Nixon's NPI active?: Yes — Carolyn Nixon's NPI (1023249125) is active in the NPPES registry as of the last update on 2021-02-01.

Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.

What this provider does (Medicare)

Based on Medicare fee-for-service claims, 2024; not all care is captured.

Service (HCPCS)	Medicare services	Typical Medicare-allowed (2024)
Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213	51	$78
Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214	16	$112
New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203	12	$97

What this provider prescribes (Medicare Part D)

Top drugs by Medicare Part D claim volume, 2024 · 6 distinct drugs on file.

Drug	Part D claims (2024)	Beneficiaries
Nitrofurantoin Monohyd/M-Crystbrand: Nitrofurantoin Mono-Macro	26	25
Nirmatrelvir/Ritonavirbrand: Paxlovid	19	19
Cephalexin	16	16
Amoxicillin	14	13
Ciprofloxacin Hcl	13	12
Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass	12	12

Provider details

Practice location

Mailing address

Specialties & taxonomies

Profile Score

What this provider does (Medicare)

What this provider prescribes (Medicare Part D)

Registry dates

Frequently asked questions

Specialties & taxonomies

Frequently asked questions

Profile Score

What this provider does (Medicare)

What this provider prescribes (Medicare Part D)