MR. NELSON GUEVARA MADRILEJO MD
NPI 1023110103
Internal Medicine - Endocrinology, Diabetes & Metabolism in Bakersfield, CA

Active since September 01, 2006PECOS EnrolledAccepts Medicare Assignment
19.3/100
CMS Quality Rating
1801 16TH ST, #A, BAKERSFIELD, CA 93301(661) 326-8989(661) 326-8991 Get Directions Write a Review

NPPES record last updated: April 18, 2014. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Mr. Nelson Guevara Madrilejo Md NPPES

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

MR. NELSON GUEVARA MADRILEJO MD (NPI 1023110103) is an individual endocrinology, diabetes & metabolism provider in Bakersfield, California, licensed in California (A47812) and active in the NPI registry since September 2006. He is enrolled in Medicare PECOS and is a graduate of Other (1986).

NPPES Registry Identity

NPI1023110103
Entity TypeIndividualMale
Primary Taxonomy207RE0101X
Provider Legal NameMR. NELSON GUEVARA MADRILEJOCredential: MD
Location Address1801 16TH ST, #ABakersfield, CA 93301
Mailing Address1801 16th St, #aBakersfield, CA 93301 · (661) 326-8989 · Fax (661) 326-8991
Fax(661) 326-8991
Sole ProprietorNo
Medical School CMSOtherGraduated 1986
Enumeration DateSeptember 1, 2006
Last NPPES UpdateApril 18, 2014
NPI 1023110103 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 · A47812
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.
1801 16TH ST, Bakersfield, CA 93301

Other Identifiers 3

Medicare PIN00A478120CA
Medicare PIN00CG69440CA
Medicare UPINE92541

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

Mr. Nelson Guevara Madrilejo 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 ID9739145426
PECOS Enrollment IDI20041203000989
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 17

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.
2,123 services693 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.
210 services84 patients
X-ray of chest, 2 views 71046
A chest X-ray, 2 views, is a quick, painless test that creates pictures of the structures inside your chest, such as your heart, lungs, and blood vessels. Two different angles are used to get a comprehensive view. This helps in diagnosing conditions like pneumonia, heart problems, or lung cancer.
117 services97 patients
Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional 99211
This service involves an outpatient visit for established patients who may not need direct interaction with a healthcare professional. It could include reviewing test results, monitoring existing conditions, or adjusting treatment plans. It's typically done remotely, ensuring your comfort and convenience.
86 services26 patients
Urinalysis, manual test 81002
A urinalysis is a simple, non-invasive test that checks the urine for various elements such as sugar, protein, and signs of infection. It can help detect many common conditions, including kidney disease and diabetes. The manual test involves a lab technician examining a urine sample.
71 services58 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.
71 services71 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 93301 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
$135.05 typical visit price
range $59.26 – $178.09
Typical copayment $33.76 (range $14.81 – $44.52)
Most-billed visit code 99204
Established Patient
$104.09 typical visit price
range $19.34 – $145.64
Typical copayment $26.02 (range $4.83 – $36.41)
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.

19.3/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Individually scored
Quality0
Improvement Activities0
Cost64.34

Referred Medical Equipment & Supplies CMS DME claims 8

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

Supplies for maintenance of insulin infusion catheter, per week A4224
DME-Other DME · category DE017N
3 suppliers29 claims334 services$17.96 avg. paid by Medicare
Supplies for external insulin infusion pump, syringe type cartridge, sterile, each A4225
DME-Other DME · category DE017N
3 suppliers31 claims830 services$2.27 avg. paid by Medicare
Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253
DME-Other DME · category DE017N
37 suppliers169 claims428 services$6.22 avg. paid by Medicare
Normal, low and high calibrator solution / chips A4256
DME-Other DME · category DE000N
3 suppliers11 claims11 services$2.93 avg. paid by Medicare
Lancets, per box of 100 A4259
DME-Medical/Surgical Supplies · category DA000N
25 suppliers52 claims85 services$1.07 avg. paid by Medicare
Insulin for administration through dme (i.e., insulin pump) per 50 units J1817
Treatment-Injections and Infusions (nononcologic) · category RI000N
4 suppliers13 claims1,180 services$6.89 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 8

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

Physician Assistant
1801 16TH ST, SUITE A
BAKERSFIELD, CA 93301
Family Medicine
1801 16TH ST, #A
BAKERSFIELD, CA 93301
Surgery (Plastic and Reconstructive Surgery)
1801 16TH ST, SUITE A
BAKERSFIELD, CA 93301
Obstetrics & Gynecology
1801 16TH ST, SUITE B
BAKERSFIELD, CA 93301
Psychiatry & Neurology (Psychiatry)
1801 16TH ST, SUITE B
BAKERSFIELD, CA 93301
Health Maintenance Organization
1801 16TH ST, SUITE B
BAKERSFIELD, CA 93301
Nurse Practitioner (Family)
1801 16TH ST
BAKERSFIELD, CA 93301
Surgery (Plastic and Reconstructive Surgery)
1801 16TH ST, SUITE A
BAKERSFIELD, CA 93301

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 Nelson Madrilejo's NPI number?

The NPI number for Nelson Madrilejo is 1023110103. It was assigned to this individual provider in the NPPES registry on September 1, 2006.

Where is Nelson Madrilejo located?

Nelson Madrilejo practices at 1801 16th St #a, Bakersfield, CA 93301. The listed phone number is (661) 326-8989.

What is Nelson Madrilejo's specialty?

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

Is Nelson Madrilejo enrolled in Medicare?

Yes. Nelson Madrilejo 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 Nelson Madrilejo was last updated on April 18, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.