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KAREN L FIELDS MD
NPI 1497779656
Internal Medicine in Camarillo, CA

Active since July 27, 2006PECOS EnrolledAccepts Medicare Assignment
1601 CARMEN DR STE 106, CAMARILLO, CA 93010(818) 788-3308(805) 389-8188 Get Directions Write a Review

NPPES record last updated: September 14, 2023. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Apr 27, 2021, Jun 30, 2020 (2 updates tracked since 2020).

About Karen L Fields Md NPPES

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

KAREN L FIELDS MD (NPI 1497779656) is an individual internal medicine provider in Camarillo, California, licensed in California (A45315) and active in the NPI registry since July 2006. She is enrolled in Medicare PECOS and is a graduate of Other (1984).

NPPES Registry Identity

NPI1497779656
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameKAREN L FIELDSCredential: MD
Location Address1601 CARMEN DR STE 106Camarillo, CA 93010-3103
Mailing Address1601 Carmen Dr Ste 106Camarillo, CA 93010-3103 · (818) 788-3308 · Fax (805) 389-8188
Phone(818) 788-3308
Fax(805) 389-8188
Sole ProprietorNo
Medical School CMSOtherGraduated 1984
Enumeration DateJuly 27, 2006
Last NPPES UpdateSeptember 14, 20232 updates tracked since enumeration
NPPES CertifiedSeptember 14, 2023
✔ NPI 1497779656 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in CA · A45315
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
1601 CARMEN DR STE 106, Camarillo, CA 93010
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Karen L Fields 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 ID7416043179
PECOS Enrollment IDI20071011000374
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.

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.

Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes 99309
A follow-up nursing facility visit per day is a daily check-in by a healthcare professional. This 25-minute visit typically involves monitoring your health progress, addressing any concerns, and adjusting treatment plans as necessary. It's a vital part of ensuring your ongoing wellbeing.
37 services33 patients
Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes 99310
A follow-up nursing facility visit is a routine check-up that typically lasts about 35 minutes. During this visit, your health status is evaluated, any changes in your condition are noted, and necessary adjustments to your care plan are made. It's an essential part of maintaining your health.
24 services12 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 93010 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
$140.72 typical visit price
range $62.32 – $185.36
Typical copayment $35.18 (range $15.58 – $46.34)
Most-billed visit code 99204
Established Patient
$108.74 typical visit price
range $20.68 – $151.85
Typical copayment $27.18 (range $5.17 – $37.96)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Referred Medical Equipment & Supplies CMS DME claims 3

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Rollabout chair, any and all types with casters 5" or greater E1031
DME-Wheelchairs · category DD000N
1 supplier17 claims17 services$20.52 avg. paid by Medicare
Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390
DME-Oxygen and Supplies · category DC002N
2 suppliers13 claims13 services$62.02 avg. paid by Medicare
Supply allowance for therapeutic continuous glucose monitor (cgm), includes all supplies and accessories, 1 month supply = 1 unit of service K0553
DME-Other DME · category DE017N
3 suppliers22 claims22 services$184.36 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 3

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

KAREN L FIELDS MD INC
Internal Medicine
1601 CARMEN DR STE 106
CAMARILLO, CA 93010
Ventura County (818) 788-3308
MICHAEL KEN TAKAGI
Nurse Practitioner (Psychiatric/Mental Health)
1601 CARMEN DR STE 106
CAMARILLO, CA 93010
Ventura County (805) 389-8111
MRS. LIZ CABANES GAHIT PMHNP-BC
Nurse Practitioner (Psychiatric/Mental Health)
1601 CARMEN DR STE 106
CAMARILLO, CA 93010
Ventura County (805) 389-8111

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 Karen Fields's NPI number?

The NPI number for Karen Fields is 1497779656. It was assigned to this individual provider in the NPPES registry on July 27, 2006.

Where is Karen Fields located?

Karen Fields practices at 1601 Carmen Dr Ste 106, Camarillo, CA 93010. The listed phone number is (818) 788-3308.

What is Karen Fields's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Karen Fields enrolled in Medicare?

Yes. Karen Fields 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.

When was this NPI record last updated?

The NPPES record for Karen Fields was last updated on September 14, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years 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.