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DR. CHRIS TSIMEREKIS M.D.
NPI 1942311832
Internal Medicine - Endocrinology, Diabetes & Metabolism in Fountain Valley, CA

Active since August 31, 2006PECOS EnrolledAccepts Medicare Assignment
75/100
CMS Quality Rating
11100 WARNER AVE, SUITE 354, FOUNTAIN VALLEY, CA 92708(714) 549-9927(714) 556-9075 Get Directions Write a Review

NPPES record last updated: July 9, 2007. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dr. Chris Tsimerekis M.d. NPPES

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

DR. CHRIS TSIMEREKIS M.D. (NPI 1942311832) is an individual endocrinology, diabetes & metabolism provider in Fountain Valley, California, licensed in California (G811410) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS and is a graduate of University Of California, Geffen School Of Medicine (1993).

NPPES Registry Identity

NPI1942311832
Entity TypeIndividualMale
Primary Taxonomy207RE0101X
Provider Legal NameDR. CHRIS TSIMEREKISCredential: M.D.
Location Address11100 WARNER AVE, SUITE 354Fountain Valley, CA 92708-7506
Mailing Address11100 Warner Ave, Suite 354Fountain Valley, CA 92708-7506 · (714) 549-9927 · Fax (714) 556-9075
Phone(714) 549-9927
Fax(714) 556-9075
Sole ProprietorYes
Medical School CMSUniversity Of California, Geffen School Of MedicineGraduated 1993
Enumeration DateAugust 31, 2006
Last NPPES UpdateJuly 9, 2007
✔ NPI 1942311832 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Endocrinology, Diabetes & MetabolismAllopathic & Osteopathic Physicians
Taxonomy Code207RE0101X
License✔ Licensed in CA · G811410
Definition
An internist who concentrates on disorders of the internal (endocrine) glands such as the thyroid and adrenal glands. This specialist also deals with disorders such as diabetes, metabolic and nutritional disorders, obesity, pituitary diseases and menstrual and sexual problems.
11100 WARNER AVE, Fountain Valley, CA 92708
Open in Google Maps ↗

Other Identifiers 2

Medicare ID-Type UnspecifiedG81141CA · Medicare Provider Number
Medicare UPING85379CA

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. Chris Tsimerekis M.d. 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 ID8224931209
PECOS Enrollment IDI20040128000559
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 7

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 moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
465 services198 patients
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.
436 services148 patients
Continuous monitoring of blood sugar level in tissue fluid using sensor under skin with interpretation and report 95251
This procedure involves placing a small sensor under your skin to continuously monitor your blood sugar levels in tissue fluid. The data is interpreted and a report is generated to help manage your diabetes more effectively.
145 services35 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.
135 services30 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
55 services55 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.
33 services33 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92708 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.

75/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Individually scored

Referred Medical Equipment & Supplies CMS DME claims 4

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

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253
DME-Other DME · category DE017N
36 suppliers167 claims427 services$6.06 avg. paid by Medicare
Normal, low and high calibrator solution / chips A4256
DME-Other DME · category DE000N
2 suppliers12 claims12 services$2.93 avg. paid by Medicare
Lancets, per box of 100 A4259
DME-Medical/Surgical Supplies · category DA000N
22 suppliers82 claims121 services$1.04 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
6 suppliers156 claims156 services$196.47 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.

DR. SAJEET SINGH SAWHNEY M.D.
Internal Medicine (Nephrology)
11100 WARNER AVE, SUITE 218
FOUNTAIN VALLEY, CA 92708
Orange County (714) 641-9696
DR. ROBERT ALLAN DEVEREAUX MD
Family Medicine
11100 WARNER AVE, STE 100
FOUNTAIN VALLEY, CA 92708
Orange County (714) 957-9389
DR. VIJAYALAKSHMI WIJEYAKUMAR M.D.
Internal Medicine (Nephrology)
11100 WARNER AVE, SUITE 212
FOUNTAIN VALLEY, CA 92708
Orange County (714) 641-9696
PLATINUM MEDICAL CARE
Internal Medicine (Nephrology)
11100 WARNER AVE, SUITE 218
FOUNTAIN VALLEY, CA 92708
Orange County (714) 641-9696
FOUNTAIN VALLEY REGIONAL HOSPITAL AND MEDICAL CENTER
Pharmacist (Pharmacotherapy)
11100 WARNER AVE, SUITE 318
FOUNTAIN VALLEY, CA 92708
Orange County (714) 966-7217
SELECT HEALTHCARE SYSTEM, A MEDICAL CORPORATION
Health Maintenance Organization
11100 WARNER AVE, SUITE 152
FOUNTAIN VALLEY, CA 92708
Orange County (714) 343-7575
MRS. TOQUYNH DINH KIEU M.D.
Pediatrics
11100 WARNER AVE, SUITE # 116
FOUNTAIN VALLEY, CA 92708
Orange County (714) 641-0850
DR. AJIT SINGH SAWHNEY M.D.
Internal Medicine (Nephrology)
11100 WARNER AVE, SUITE 212
FOUNTAIN VALLEY, CA 92708
Orange County (714) 641-9696

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 Chris Tsimerekis's NPI number?

The NPI number for Chris Tsimerekis is 1942311832. It was assigned to this individual provider in the NPPES registry on August 31, 2006.

Where is Chris Tsimerekis located?

Chris Tsimerekis practices at 11100 Warner Ave Suite 354, Fountain Valley, CA 92708. The listed phone number is (714) 549-9927.

What is Chris Tsimerekis's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Endocrinology, Diabetes & Metabolism, with taxonomy code 207RE0101X.

Is Chris Tsimerekis enrolled in Medicare?

Yes. Chris Tsimerekis 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 Chris Tsimerekis 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.