GREGORY MARTINEZ M.D.
NPI 1982863098
Internal Medicine - Nephrology in Fresno, CA

Active since June 04, 2008PECOS EnrolledAccepts Medicare Assignment
568 E HERNDON AVE, SUITE 201, FRESNO, CA 93720(559) 228-6600(559) 226-3709 Get Directions Write a Review

NPPES record last updated: August 15, 2017. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Gregory Martinez M.d. NPPES

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

GREGORY MARTINEZ M.D. (NPI 1982863098) is an individual nephrology provider in Fresno, California, licensed in California (A103241) and active in the NPI registry since June 2008. He is enrolled in Medicare PECOS and is a graduate of Jefferson Medical College Of Thomas Jefferson University (2006).

NPPES Registry Identity

NPI1982863098
Entity TypeIndividualMale
Primary Taxonomy207RN0300X
Provider Legal NameGREGORY MARTINEZCredential: M.D.
Location Address568 E HERNDON AVE, SUITE 201Fresno, CA 93720-2989
Mailing Address568 E Herndon Ave, Suite 201Fresno, CA 93720-2989 · (559) 228-6600 · Fax (559) 226-3709
Fax(559) 226-3709
Sole ProprietorNo
Medical School CMSJefferson Medical College Of Thomas Jefferson UniversityGraduated 2006
Enumeration DateJune 4, 2008
Last NPPES UpdateAugust 15, 2017
NPI 1982863098 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyInternal Medicine · NephrologyAllopathic & Osteopathic Physicians
Taxonomy Code207RN0300X
License Licensed in CA · A103241
Definition
An internist who treats disorders of the kidney, high blood pressure, fluid and mineral balance and dialysis of body wastes when the kidneys do not function. This specialist consults with surgeons about kidney transplantation.
Also ListedInternal MedicineTaxonomy 207R00000X · License A103241 (CA)
568 E HERNDON AVE, Fresno, CA 93720

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

Gregory Martinez 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 ID2264602564
PECOS Enrollment IDI20110824000191
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 34

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.

Injection, epoetin alfa, (for non-esrd use), 1000 units J0885
Epoetin alfa is a medication injected to help your body produce more red blood cells, improving energy levels and reducing tiredness. It's often used for patients with certain types of anemia. Each injection contains 1000 units of the medicine.
3,552 services87 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.
804 services239 patients
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.
692 services402 patients
Insertion of needle into vein for collection of blood sample 36415
This procedure involves inserting a small needle into a vein, typically in your arm, to collect a blood sample. It's a quick and simple process to help diagnose or monitor health conditions. You may feel a small prick, but discomfort is minimal.
592 services260 patients
Phosphate level 84100
A phosphate level test measures the amount of phosphate in your blood. Phosphate is a chemical that contains the mineral phosphorus, crucial for energy production, muscle and nerve function, and bone growth. Imbalances may indicate kidney disease or other health issues.
481 services256 patients
Blood test, comprehensive group of blood chemicals 80053
A comprehensive group of blood chemicals test, also known as a comprehensive metabolic panel, is a blood test that measures your sugar level, electrolyte and fluid balance, kidney function, and liver function. This helps to check your body's overall health.
465 services256 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 93720 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
$133.94 typical visit price
range $58.87 – $176.60
Typical copayment $33.48 (range $14.71 – $44.15)
Most-billed visit code 99204
Established Patient
$103.36 typical visit price
range $19.28 – $144.60
Typical copayment $25.84 (range $4.82 – $36.15)
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.

Other Providers at the Same Location NPPES 16

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

Pediatrics
568 E HERNDON AVE, SUITE 101
FRESNO, CA 93720
Nurse Practitioner
568 E HERNDON AVE, SUITE 201
FRESNO, CA 93720
Physician Assistant
568 E HERNDON AVE, SUITE 201
FRESNO, CA 93720
Internal Medicine (Nephrology)
568 E HERNDON AVE, SUITE 201
FRESNO, CA 93720
Internal Medicine (Nephrology)
568 E HERNDON AVE, SUITE 201
FRESNO, CA 93720
Internal Medicine (Nephrology)
568 E HERNDON AVE, SUITE 201
FRESNO, CA 93720
Internal Medicine
568 E HERNDON AVE, STE 102
FRESNO, CA 93720
Pediatrics
568 E HERNDON AVE, SUITE 101
FRESNO, CA 93720

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 Gregory Martinez's NPI number?

The NPI number for Gregory Martinez is 1982863098. It was assigned to this individual provider in the NPPES registry on June 4, 2008.

Where is Gregory Martinez located?

Gregory Martinez practices at 568 E Herndon Ave Suite 201, Fresno, CA 93720. The listed phone number is (559) 228-6600.

What is Gregory Martinez's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.

Is Gregory Martinez enrolled in Medicare?

Yes. Gregory Martinez 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 Gregory Martinez was last updated on August 15, 2017. NPI Profile syncs with the weekly NPPES data releases published by CMS.