CAROLYN RHENE MERKOURIS MD
NPI 1174503395
Specialist in Woodland, CA

Q: What is Carolyn Merkouris's NPI number?

The NPI number for Carolyn Merkouris is 1174503395. It was assigned to this individual provider in the NPPES registry on January 23, 2006. The provider is also known as Carolyn Rhene Merkouris MD.

Q: What is Carolyn Merkouris's specialty?

The primary specialty registered for this NPI is Specialist with taxonomy code 174400000X.

Q: When was this NPI record last updated?

The NPPES record for Carolyn Merkouris was last updated on April 22, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.

Active since January 23, 2006PECOS EnrolledAccepts Medicare Assignment

1321 COTTONWOOD ST FL 3, WOODLAND, CA 95695(530) 668-2600(530) 661-2410 Get Directions Write a Review

NPPES record last updated: April 22, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Apr 22, 2026, Apr 11, 2026, Mar 1, 2021 and 2 more (5 updates tracked since 2017).

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About Carolyn Rhene Merkouris Md NPPES

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

CAROLYN RHENE MERKOURIS MD (NPI 1174503395) is an individual specialist in Woodland, California, licensed in Alaska (4440) and active in the NPI registry since January 2006. She is enrolled in Medicare PECOS and is a graduate of University Of California, San Francisco School Of Medicine (1987).

NPPES Registry Identity

NPI1174503395

Entity TypeIndividualFemale

Primary Taxonomy174400000X

Provider Legal NameCAROLYN RHENE MERKOURISCredential: MD

Location Address1321 COTTONWOOD ST FL 3Woodland, CA 95695-5131

Mailing Address1321 Cottonwood St Fl 3Woodland, CA 95695-5131

Phone(530) 668-2600

Fax(530) 661-2410

Sole ProprietorNo

Medical School CMSUniversity Of California, San Francisco School Of MedicineGraduated 1987

Enumeration DateJanuary 23, 2006

Last NPPES UpdateApril 22, 20265 updates tracked since enumeration

NPPES CertifiedApril 22, 2026

✔ NPI 1174503395 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtySpecialistOther Service Providers

Taxonomy Code174400000X

License✔ Licensed in AK · 4440

Definition

An individual educated and trained in an applied knowledge discipline used in the performance of work at a level requiring knowledge and skills beyond or apart from that provided by a general education or liberal arts degree.

Also ListedObstetrics & GynecologyTaxonomy 207V00000X · License G71953 (CA)

Also ListedHospitalistTaxonomy 208M00000X · License G71953 (CA)

1321 COTTONWOOD ST FL 3, Woodland, CA 95695

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Other Names 1

Professional Name (2)Carolyn Rhene Merkouris Md

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

Carolyn Rhene Merkouris 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.

PECOS PAC ID8224136585

PECOS Enrollment IDI20090428000509

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

Medicare enrollment records show Carolyn Merkouris reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Chw Medical Foundation

Same address

Multi-Specialty

1321 COTTONWOOD ST
Woodland, CA 95695

Reassigned Medicare billing, California enrollment
Medicare enrollment name: Dignity Health Medical Foundation
1,191 clinicians in this Medicare group

NPI 1851691042 (530) 668-2600

Southeast Alaska Regional Health Consortium

1,241 mi

Community/Behavioral Health

3050 FIFTH AVE STE 100
Ketchikan, AK 99901

Reassigned Medicare billing, Texas enrollment
640 clinicians in this Medicare group

NPI 1538922455 (907) 966-2411

Denali Ob-Gyn Assoc

1,965 mi

Obstetrics & Gynecology

3976 UNIVERSITY LAKE DR STE 300
Anchorage, AK 99508

Reassigned Medicare billing, Alaska enrollment
14 clinicians in this Medicare group

NPI 1477623452 (907) 222-9930

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.

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

39 services28 patients

Cervical or vaginal cancer screening; pelvic and clinical breast examination G0101

This procedure involves checking for health issues in the lower abdomen and chest area. It helps identify early signs of certain conditions, increasing the chance for successful treatment. It's a routine check-up that's important for maintaining good health.

15 services15 patients

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

Reported Quality Measures

Breast Cancer Screening

Percentage of women 50-74 years of age who had a mammogram to screen for breast cancer

75%224 patients4/55-star benchmark: 92%

Cervical Cancer Screening

Percentage of women 21-64 years of age who were screened for cervical cancer using either of the following criteria: - Women age 21-64 who had cervical cytology performed every 3 years - Women age 30-64 who had cervical cytology/human papillomavirus (HPV)…

94%908 patients

e-Prescribing

At least one permissible prescription written by the MIPS eligible clinician is queried for a drug formulary and transmitted electronically using certified EHR technology.

94%1,099 patients4/55-star benchmark: 99%

Health Information Exchange

The MIPS eligible clinician that transitions or refers their patient to another setting of care or health care clinician (1) uses CEHRT to create a summary of care record; and (2) electronically transmits such summary to a receiving health care clinician for…

77%102 patients4/55-star benchmark: 88%

Medication Reconciliation

The MIPS eligible clinician performs medication reconciliation for at least one transition of care in which the patient is transitioned into the care of the MIPS eligible clinician.

99%379 patients4/55-star benchmark: 100%

Patient-Specific Education

The MIPS eligible clinician must use clinically relevant information from CEHRT to identify patient-specific educational resources and provide access to those materials to at least one unique patient seen by the MIPS eligible clinician.

21%1,318 patients1/55-star benchmark: 97%

Preventive Care and Screening: Body Mass Index (BMI) Screening and Follow-Up Plan

Percentage of patients aged 18 years and older with a BMI documented during the current encounter or during the previous twelve months AND with a BMI outside of normal parameters, a follow-up plan is documented during the encounter or during the previous…

33%1,025 patients2/55-star benchmark: 97%

Preventive Care and Screening: Tobacco Use: Screening and Cessation Intervention

Percentage of patients aged 18 years and older who were screened for tobacco use one or more times within 24 months AND who received tobacco cessation intervention if identified as a tobacco user

Patients screenedForUse: 90% · 975 patients

Patients tobacco: 3% · 36 patients

85%975 patients4/55-star benchmark: 98%

Provide Patient Access

At least one patient seen by the MIPS eligible clinician during the performance period is provided timely access to view online, download, and transmit to a third party their health information subject to the MIPS eligible clinician's discretion to withhold…

85%1,318 patients4/55-star benchmark: 100%

Secure Messaging

For at least one unique patient seen by the MIPS eligible clinician during the performance period, a secure message was sent using the electronic messaging function of CEHRT to the patient (or the patient-authorized representative), or in response to a secure…

52%1,318 patients3/55-star benchmark: 89%

View, Download, or Transmit (VDT)

At least one patient seen by the MIPS eligible clinician during the performance period (or patient-authorized representative) views, downloads or transmits their health information to a third party during the performance period.

50%1,318 patients

Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

Other Providers at the Same Location NPPES 10

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MRS. KRISTEN M WEBSTER PA-C

Physician Assistant