DR. MICHAEL JOEL MENDOZA M.D.
NPI 1902989668
Internal Medicine - Gastroenterology in Monterey, CA

Q: What is Michael Mendoza's NPI number?

The NPI number for Michael Mendoza is 1902989668. It was assigned to this individual provider in the NPPES registry on October 23, 2006.

Q: What is Michael Mendoza's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Q: When was this NPI record last updated?

The NPPES record for Michael Mendoza was last updated on December 18, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.

Active since October 23, 2006PECOS EnrolledAccepts Medicare Assignment

83.78/100

CMS Quality Rating

23 UPPER RAGSDALE DR, MONTEREY, CA 93940(831) 375-3577(931) 375-1478 Get Directions Write a Review

NPPES record last updated: December 18, 2020. Verified against the NPPES registry weekly; last sync: October 25, 2026.

On this page

About Dr. Michael Joel Mendoza M.d. NPPES

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

DR. MICHAEL JOEL MENDOZA M.D. (NPI 1902989668) is an individual gastroenterology provider in Monterey, California, licensed in California (A77129) and active in the NPI registry since October 2006. He is enrolled in Medicare PECOS, maintains a secondary practice location in Gonzales, and is a graduate of University Of California, Geffen School Of Medicine (2000).

NPPES Registry Identity

NPI1902989668

Entity TypeIndividualMale

Primary Taxonomy207RG0100X

Provider Legal NameDR. MICHAEL JOEL MENDOZACredential: M.D.

Location Address23 UPPER RAGSDALE DRMonterey, CA 93940-7849

Mailing Address23 Upper Ragsdale DrMonterey, CA 93940-7849 · (831) 375-3577 · Fax (931) 375-1478

Phone(831) 375-3577

Fax(931) 375-1478

Sole ProprietorYes

Medical School CMSUniversity Of California, Geffen School Of MedicineGraduated 2000

Enumeration DateOctober 23, 2006

Last NPPES UpdateDecember 18, 2020

NPPES CertifiedDecember 18, 2020

✔ NPI 1902989668 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians

Taxonomy Code207RG0100X

License✔ Licensed in CA · A77129

Definition

An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.

Also ListedInternal MedicineTaxonomy 207R00000X · License A77129 (CA)

23 UPPER RAGSDALE DR, Monterey, CA 93940

Open in Google Maps ↗

Secondary Practice Location 1

Location 1850 5th StGonzales, CA 93926-9491 · Phone (831) 657-3601

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Michael Joel Mendoza 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 ID9638252968

PECOS Enrollment IDI20120523000233

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.

Medicare Billing Reassignments

Medicare enrollment records show Michael Mendoza reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Monterey Bay Gi Consultants Medical Group Inc.

Same address

Gastroenterology

23 UPPER RAGSDALE DR, SUITE 200
Monterey, CA 93940

Reassigned Medicare billing, California enrollment
29 clinicians in this Medicare group

NPI 1154373280 (831) 375-3577

Salinas Valley Memorial Healthcare System

21 mi

Rural Health

850 FIFTH STREET
Gonzales, CA 93926

Reassigned Medicare billing, California enrollment
42 clinicians in this Medicare group

NPI 1437549284 (831) 675-3601

The Regents Of The University Of California

257 mi

Internal Medicine

200 MEDICAL PLAZA, SUITE 365,530,420,250,120,214
Los Angeles, CA 90095

Reassigned Medicare billing, California enrollment
1,766 clinicians in this Medicare group

NPI 1235107566 (310) 794-1276

Emergency And Acute Care Medical Corporation

371 mi

Emergency Medicine

7901 FROST ST
San Diego, CA 92123

Reassigned Medicare billing, California enrollment
1,437 clinicians in this Medicare group

NPI 1437103942 (858) 939-3400

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 22

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.

294 services238 patients

Removal of polyps or growths of large bowel using an endoscope with mechanical snare 45385

This procedure involves using a thin, flexible tube called an endoscope to examine the large bowel. If any abnormal growths or polyps are found, a tool called a mechanical snare is used to remove them. This is a common method to prevent potential health issues.

231 services226 patients

Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43239

This procedure involves using a thin, flexible tube with a light and camera, known as an endoscope, to examine the esophagus, stomach, and upper part of the small intestine. Small tissue samples are taken for further examination to help diagnose various conditions.

182 services178 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.

128 services128 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.

105 services100 patients

Biopsy of large bowel using a flexible endoscope 45380

A biopsy of the large bowel using a flexible endoscope is a procedure where a thin, flexible tube with a camera is inserted through the rectum to examine the bowel. If abnormal tissue is found, a small sample is taken for further examination. This helps in diagnosing conditions like inflammation, polyps, or cancer.

68 services68 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.

53 services46 patients

Balloon dilation of esophagus, stomach, and/or upper small bowel using a flexible endoscope, less than 3.0 cm 43249

This procedure involves using a flexible tube with a camera, called an endoscope, to gently expand narrowed areas in your esophagus, stomach, or upper small bowel. A small balloon is inflated, making it easier for food and liquid to pass through. It's safe and effective.

47 services41 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.

32 services32 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.

31 services28 patients

Ultrasound exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43259

This procedure involves a flexible tube with a camera, called an endoscope, inserted through your mouth to examine your esophagus, stomach, and upper small bowel. An ultrasound device on the endoscope helps get detailed images. It's safe and helps diagnose various conditions.

29 services29 patients

New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203

This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.

27 services27 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

22 services22 patients

Ultrasound guided needle aspiration or biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43242

This procedure involves using an ultrasound to guide a needle to specific areas in the esophagus, stomach, or upper small bowel. A flexible endoscope is used to reach these areas. The needle collects a small sample for testing.

21 services21 patients

Colorectal cancer screening; colonoscopy on individual at high risk G0105

Colorectal cancer screening, specifically a colonoscopy, is a preventive measure for those at high risk. A thin, flexible tube with a camera inspects the colon to spot any abnormal growths. This test helps detect potential issues early, enhancing the effectiveness of treatment.

21 services21 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

19 services17 patients

Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43235

This procedure, known as an upper endoscopy, involves inserting a thin, flexible tube with a camera down the throat to examine the esophagus, stomach, and upper small bowel. It helps diagnose conditions like ulcers or inflammation.

18 services18 patients

Review by radiologist of image from tube placement into bile duct using an endoscope 74328

This procedure involves a specialist, called a radiologist, examining an image taken during a tube placement into your bile duct. The tube is inserted with the help of a tool called an endoscope. This allows the doctor to check for any issues or abnormalities in your bile duct.

17 services14 patients

Measurement of liver stiffness 91200

Measurement of liver stiffness is a non-invasive procedure that helps assess the health of your liver. It uses sound waves to detect the hardness of the liver tissue, which can indicate conditions like fibrosis or cirrhosis. It's a simple, painless test that provides valuable information about your liver's health.

16 services16 patients

Diagnostic exam of large bowel using a flexible endoscope 45378

This procedure, known as a colonoscopy, involves using a flexible tube with a light and camera to examine the large intestine. It helps detect any abnormalities such as polyps or inflammation. It's a standard procedure to ensure gut health.

13 services12 patients

Removal of stone or debris from bile or pancreatic duct using a flexible endoscope 43264

This procedure, called an endoscopic retrograde cholangiopancreatography (ERCP), involves using a flexible tube with a camera (endoscope) to locate and remove stones or debris from your bile or pancreatic duct. It's a non-surgical method to clear the ducts, enhancing your digestive health.

12 services11 patients

Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk G0121

Colorectal cancer screening, such as a colonoscopy, is a preventive measure to detect early signs of cancer in the large intestine. For individuals not at high risk, it's typically recommended at age 50. A small, flexible tube with a camera is used to examine your colon. It's a safe, effective way to catch issues early.

12 services12 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 93940 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

$139.84 typical visit price

range $61.69 – $184.30

Typical copayment $34.96 (range $15.42 – $46.07)

Most-billed visit code 99204

Established Patient

$108.04 typical visit price

range $20.34 – $151.02

Typical copayment $27.01 (range $5.08 – $37.75)

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.

83.78/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored as part of a group practice

Quality

75.86

Promoting Interoperability

Improvement Activities

Cost

70.65

Reported Quality Measures

Advance Care Plan

79%437 patients4/55-star benchmark: 100%

Closing the Referral Loop: Receipt of Specialist Report

34%80 patients2/55-star benchmark: 87%

Colorectal Cancer Screening

85%519 patients4/55-star benchmark: 88%

Controlling High Blood Pressure

39%36 patients2/55-star benchmark: 91%

Diabetes: Hemoglobin A1c (HbA1c) Poor Control (>9%)

Lower rates are better for this measure.

100%60 patients1/55-star benchmark: 91%

Documentation of Current Medications in the Medical Record

87%1,147 patients4/55-star benchmark: 100%

e-Prescribing

98%430 patients4/55-star benchmark: 100%

Preventive Care and Screening: Body Mass Index (BMI) Screening and Follow-Up Plan

33%816 patients2/55-star benchmark: 98%

Preventive Care and Screening: Screening for High Blood Pressure and Follow-Up Documented

18%1,001 patients2/55-star benchmark: 61%

Preventive Care and Screening: Tobacco Use: Screening and Cessation Intervention

Patients screened: 25% · 212 patients

24%212 patients

Provide Patients Electronic Access to Their Health Information

57%214 patients3/55-star benchmark: 100%

Statin Therapy for the Prevention and Treatment of Cardiovascular Disease

84%94 patients4/55-star benchmark: 91%

Use of High-Risk Medications in Older Adults

Lower rates are better for this measure.

Patients appropriateDiagnosis: 1% · 346 patients

Patients totalRate: 3% · 346 patients

2%346 patients4/55-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.

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.

DR. RICHARD WALTER HELL M.D.

Internal Medicine (Gastroenterology)

23 UPPER RAGSDALE DR, SUITE 200
MONTEREY, CA 93940

Monterey County (831) 375-3577

MONTEREY BAY GI CONSULTANTS MEDICAL GROUP INC.

Internal Medicine (Gastroenterology)

23 UPPER RAGSDALE DR, SUITE 200
MONTEREY, CA 93940

Monterey County (831) 375-3577

MS. CYNTHIA ELLEN RUSSELL-MCCLAIN N.P., P.A.-C

Nurse Practitioner

23 UPPER RAGSDALE DR, SUITE 200
MONTEREY, CA 93940

Monterey County (831) 375-3577

MARISSA L PAYNE AGACNP-BC

Nurse Practitioner (Acute Care)

23 UPPER RAGSDALE DR
MONTEREY, CA 93940

Monterey County (831) 375-3577

DR. MICHAEL R SMITH M.D.

Internal Medicine (Gastroenterology)

23 UPPER RAGSDALE DR, SUITE 200
MONTEREY, CA 93940

Monterey County (831) 375-3577

DR. TOBY J KATZ M.D.

Internal Medicine (Gastroenterology)

23 UPPER RAGSDALE DR, SUITE 200
MONTEREY, CA 93940

Monterey County (831) 375-3577

DR. JAMES A DI SARIO M.D.

Internal Medicine (Gastroenterology)

23 UPPER RAGSDALE DR, SUITE 200
MONTEREY, CA 93940

Monterey County (831) 375-3577

MICHAEL SANG LE M.D.

Internal Medicine (Gastroenterology)

23 UPPER RAGSDALE DR
MONTEREY, CA 93940

Monterey County (831) 375-3577

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 Michael Mendoza's NPI number?

The NPI number for Michael Mendoza is 1902989668. It was assigned to this individual provider in the NPPES registry on October 23, 2006.

Where is Michael Mendoza located?

Michael Mendoza practices at 23 Upper Ragsdale Dr, Monterey, CA 93940. The listed phone number is (831) 375-3577.

What is Michael Mendoza's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Is Michael Mendoza enrolled in Medicare?

Yes. Michael Mendoza 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.

Which organizations bill Medicare for Michael Mendoza's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Michael Mendoza reassigns Medicare benefits to 4 organizations: Monterey Bay Gi Consultants Medical Group Inc. (Monterey, CA), Salinas Valley Memorial Healthcare System (Gonzales, CA), The Regents Of The University Of California (Los Angeles, CA) and Emergency And Acute Care Medical Corporation (San Diego, CA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Michael Mendoza's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Michael Mendoza was last updated on December 18, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.