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DR. WARREN CHRISTOPHER LEE MD, MHS
NPI 1942696448
Internal Medicine - Endocrinology, Diabetes & Metabolism in Pasadena, CA

Active since April 10, 2015PECOS Enrolled
2155 E VILLA ST, PASADENA, CA 91107(626) 797-7470 Get Directions Write a Review

NPPES record last updated: September 6, 2021. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dr. Warren Christopher Lee Md, Mhs NPPES

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

DR. WARREN CHRISTOPHER LEE MD, MHS (NPI 1942696448) is an individual endocrinology, diabetes & metabolism provider in Pasadena, California, licensed in California (A151101) and active in the NPI registry since April 2015. He is enrolled in Medicare PECOS and is a graduate of Other (2015).

NPPES Registry Identity

NPI1942696448
Entity TypeIndividualMale
Primary Taxonomy207RE0101X
Provider Legal NameDR. WARREN CHRISTOPHER LEECredential: MD, MHS
Location Address2155 E VILLA STPasadena, CA 91107-2452
Mailing Address2155 E Villa StPasadena, CA 91107-2452 · (626) 797-7470
Phone(626) 797-7470
Sole ProprietorNo
Medical School CMSOtherGraduated 2015
Enumeration DateApril 10, 2015
Last NPPES UpdateSeptember 6, 2021
NPPES CertifiedSeptember 6, 2021
✔ NPI 1942696448 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 · A151101
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.
2155 E VILLA ST, Pasadena, CA 91107
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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 (PECOS)

Dr. Warren Christopher Lee Md, Mhs is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID547566242
PECOS Enrollment IDI20200921000635
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 4

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.
549 services189 patients
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.
415 services55 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.
65 services65 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.
63 services58 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 91107 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.

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.

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253
DME-Other DME · category DE017N
10 suppliers33 claims75 services$5.74 avg. paid by Medicare
Lancets, per box of 100 A4259
DME-Medical/Surgical Supplies · category DA000N
8 suppliers18 claims22 services$0.98 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
5 suppliers63 claims63 services$183.49 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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 Warren Lee's NPI number?

The NPI number for Warren Lee is 1942696448. It was assigned to this individual provider in the NPPES registry on April 10, 2015.

Where is Warren Lee located?

Warren Lee practices at 2155 E Villa St, Pasadena, CA 91107. The listed phone number is (626) 797-7470.

What is Warren Lee's specialty?

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

Is Warren Lee enrolled in Medicare?

Yes. Warren Lee is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Warren Lee was last updated on September 6, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.