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DR. KATARZYNA TWARDOWSKA MD
NPI 1790881795
Internal Medicine in Anaheim, CA

Active since September 16, 2006PECOS EnrolledAccepts Medicare Assignment
52.31/100
CMS Quality Rating
1801 W ROMNEYA DR, SUITE # 601B, ANAHEIM, CA 92801(714) 780-5695(714) 780-5694 Get Directions Write a Review

NPPES record last updated: July 9, 2007. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Dr. Katarzyna Twardowska Md NPPES

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

DR. KATARZYNA TWARDOWSKA MD (NPI 1790881795) is an individual internal medicine provider in Anaheim, California, licensed in California (A69481) and active in the NPI registry since September 2006. She is enrolled in Medicare PECOS and is a graduate of Other (1989).

NPPES Registry Identity

NPI1790881795
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameDR. KATARZYNA TWARDOWSKACredential: MD
Location Address1801 W ROMNEYA DR, SUITE # 601BAnaheim, CA 92801-1830
Mailing AddressPo Box 8206Anaheim, CA 92812-0206 · (714) 780-5695 · Fax (714) 780-5694
Phone(714) 780-5695
Fax(714) 780-5694
Sole ProprietorNo
Medical School CMSOtherGraduated 1989
Enumeration DateSeptember 16, 2006
Last NPPES UpdateJuly 9, 2007
✔ NPI 1790881795 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 · A69481
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.
1801 W ROMNEYA DR, Anaheim, CA 92801
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Other Identifiers 1

Medicare UPINH21417CA

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

Dr. Katarzyna Twardowska 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 ID4587788641
PECOS Enrollment IDI20100826000947
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 8

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 hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
1,224 services378 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
350 services148 patients
Hospital discharge day management, more than 30 minutes 99239
Hospital discharge day management over 30 minutes involves a detailed process to ensure a smooth transition from hospital to home. It includes final examinations, discussion of your hospital stay, post-discharge instructions, and coordinating follow-up care.
219 services192 patients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
201 services190 patients
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.
86 services17 patients
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222
Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.
64 services61 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92801 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
$142.39 typical visit price
range $62.96 – $187.60
Typical copayment $35.59 (range $15.74 – $46.90)
Most-billed visit code 99204
Established Patient
$109.96 typical visit price
range $20.84 – $153.61
Typical copayment $27.49 (range $5.21 – $38.40)
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.

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.

52.31/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Individually scored
Quality54.21
Improvement Activities0
Cost41.66

Reported Quality Measures

Care Plan
Percentage of patients aged 65 years and older who have an advance care plan or surrogate decision maker documented in the medical record that an advance care plan was discussed but the patient did not wish or was not able to name a surrogate decision maker…
100%214 patients5/55-star benchmark: 100%
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.

Referred Medical Equipment & Supplies CMS DME claims 6

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

Hospital bed, semi-electric (head and foot adjustment), with any type side rails, with mattress E0260
DME-Hospital Beds · category DB000N
1 supplier11 claims11 services$47.17 avg. paid by Medicare
Hospital bed, semi-electric (head and foot adjustment), without side rails, without mattress E0295
DME-Hospital Beds · category DB000N
1 supplier13 claims13 services$41.61 avg. paid by Medicare
Portable gaseous oxygen system, rental; includes portable container, regulator, flowmeter, humidifier, cannula or mask, and tubing E0431
DME-Oxygen and Supplies · category DC000N
3 suppliers31 claims31 services$14.83 avg. paid by Medicare
Nebulizer, with compressor E0570
DME-Other DME · category DE000N
3 suppliers22 claims22 services$3.49 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
3 suppliers31 claims31 services$67.32 avg. paid by Medicare
Standard wheelchair K0001
DME-Wheelchairs · category DD000N
2 suppliers14 claims14 services$17.97 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 20

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

MR. SHELTON JIM COLINCO PA
Physician Assistant
1801 W ROMNEYA DR, 203
ANAHEIM, CA 92801
Orange County (714) 999-1465
DR. NANDINI R MURTHY D.D.S
Dentist (General Practice)
1801 W ROMNEYA DR, SUITE # 201
ANAHEIM, CA 92801
Orange County (714) 774-2638
KAREN BURGOS DAWSON PA-C
Physician Assistant
1801 W ROMNEYA DR, 203
ANAHEIM, CA 92801
Orange County (714) 999-1465
GRACE JEAN YOUNG MD
Internal Medicine
1801 W ROMNEYA DR, STE 104
ANAHEIM, CA 92801
Orange County (714) 817-7878
BERNADETTE MARIE MILBURY NP
Nurse Practitioner (Adult Health)
1801 W ROMNEYA DR
ANAHEIM, CA 92801
Orange County (714) 999-1465
DR. JEONG OK LEE M.D.
Pediatrics
1801 W ROMNEYA DR, SUITE #606
ANAHEIM, CA 92801
Orange County (714) 635-0600
MS. VIOLETA D. QUEVEDO RNP, MSN, PHN
Nurse Practitioner (Obstetrics & Gynecology)
1801 W ROMNEYA DR, STE 507
ANAHEIM, CA 92801
Orange County (714) 535-7400
JAYANTI N PATEL MD
Surgery
1801 W ROMNEYA DR, SUITE 405
ANAHEIM, CA 92801
Orange County (714) 404-7602

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 Katarzyna Twardowska's NPI number?

The NPI number for Katarzyna Twardowska is 1790881795. It was assigned to this individual provider in the NPPES registry on September 16, 2006.

Where is Katarzyna Twardowska located?

Katarzyna Twardowska practices at 1801 W Romneya Dr Suite # 601B, Anaheim, CA 92801. The listed phone number is (714) 780-5695.

What is Katarzyna Twardowska's specialty?

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

Is Katarzyna Twardowska enrolled in Medicare?

Yes. Katarzyna Twardowska 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 Katarzyna Twardowska was last updated on July 9, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.