LARISSA MARIA ALLEN M.D.
NPI 1659536480
Internal Medicine - Gastroenterology in Tucson, AZ

Q: What is Larissa Allen's NPI number?

The NPI number for Larissa Allen is 1659536480. It was assigned to this individual provider in the NPPES registry on July 21, 2008.

Q: What is Larissa Allen'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 Larissa Allen was last updated on January 5, 2017. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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 July 21, 2008PECOS EnrolledAccepts Medicare Assignment

10.86/100

CMS Quality Rating

6130 N LA CHOLLA BLVD, SUITE 200, TUCSON, AZ 85741(520) 219-8342(520) 219-7117 Get Directions Write a Review

NPPES record last updated: January 5, 2017. Verified against the NPPES registry weekly; last sync: August 02, 2026.

On this page

About Larissa Maria Allen M.d. NPPES

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

LARISSA MARIA ALLEN M.D. (NPI 1659536480) is an individual gastroenterology provider in Tucson, Arizona, licensed in Arizona (48787) and active in the NPI registry since July 2008. She is enrolled in Medicare PECOS and is a graduate of University Of Arizona College Of Medicine (2008).

NPPES Registry Identity

NPI1659536480

Entity TypeIndividualFemale

Primary Taxonomy207RG0100X

Provider Legal NameLARISSA MARIA ALLENCredential: M.D.

Location Address6130 N LA CHOLLA BLVD, SUITE 200Tucson, AZ 85741-3557

Mailing Address6130 N La Cholla Blvd, Suite 200Tucson, AZ 85741-3557 · (520) 219-8342 · Fax (520) 219-7117

Phone(520) 219-8342

Fax(520) 219-7117

Sole ProprietorYes

Medical School CMSUniversity Of Arizona College Of MedicineGraduated 2008

Enumeration DateJuly 21, 2008

Last NPPES UpdateJanuary 5, 2017

✔ NPI 1659536480 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 AZ · 48787

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 R70554 (AZ)

6130 N LA CHOLLA BLVD, Tucson, AZ 85741

Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arizona Complete Health, Blue Cross Blue Shield of Arizona.Insurance ›

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

Larissa Maria Allen 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 ID4587880257

PECOS Enrollment IDI20140801001527

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 12

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 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.

221 services171 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.

192 services186 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.

190 services189 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.

154 services154 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.

141 services136 patients

New patient office or other outpatient visit with straightforward medical decision making, if using time, 15 minutes or more 99202

This service involves an initial visit to the doctor's office or other outpatient setting. It typically lasts between 15-29 minutes. The doctor will review your medical history, conduct a physical examination, and discuss your health concerns. It's a chance to establish your health baseline and address any immediate medical issues.

121 services121 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.

78 services76 patients

Measurement of hydrogen in breath to test for stomach and bowel symptoms 91065

This test involves breathing into a bag to measure hydrogen levels in your breath. High levels can indicate issues with food digestion or absorption in your stomach or intestines. It's non-invasive, painless, and helps diagnose certain gastrointestinal conditions.

61 services39 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.

40 services40 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.

35 services31 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.

31 services31 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.

18 services18 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 85741 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

$127.71 typical visit price

range $55.44 – $168.60

Typical copayment $31.92 (range $13.86 – $42.15)

Most-billed visit code 99204

Established Patient

$98.00 typical visit price

range $17.72 – $137.41

Typical copayment $24.50 (range $4.43 – $34.35)

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.

10.86/100

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

Individually scored

Quality

Improvement Activities

Cost

36.23

Leave this field empty

Other Providers at the Same Location NPPES 17

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

MS. MARY J TOPMILLER NP

Nurse Practitioner

6130 N LA CHOLLA BLVD, SUITE 100 LA CHOLLA FAMILY PRACTICE
TUCSON, AZ 85741

Pima County (520) 742-4159

DEBORAH RUTH HOTEP ARNP

Nurse Practitioner (Family)

6130 N LA CHOLLA BLVD
TUCSON, AZ 85741

Pima County (520) 731-1110

DR. LILAH FRAN MORRIS-WISEMAN M.D.

Surgery

6130 N LA CHOLLA BLVD, STE 210
TUCSON, AZ 85741

Pima County (520) 797-6881

DR. SHANE MICHAEL SVOBODA M.D.

Surgery

6130 N LA CHOLLA BLVD
TUCSON, AZ 85741

Pima County (520) 219-8690

ROMEO F ESQUIVEL MD PLLC

Internal Medicine (Gastroenterology)

6130 N LA CHOLLA BLVD, SUITE 210
TUCSON, AZ 85741

Pima County (520) 575-5003

SERIGN MASS A MARONG M.D.

Family Medicine

6130 N LA CHOLLA BLVD
TUCSON, AZ 85741

Pima County (520) 742-4159

JOHN M PIFER M.D.

Internal Medicine (Geriatric Medicine)

6130 N LA CHOLLA BLVD, #117
TUCSON, AZ 85741

Pima County (520) 297-8429

DR. FRANK ERNST MOLLS MD

Internal Medicine (Cardiovascular Disease)

6130 N LA CHOLLA BLVD, SUITE 250
TUCSON, AZ 85741

Pima County (520) 297-9060

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 Larissa Allen's NPI number?

The NPI number for Larissa Allen is 1659536480. It was assigned to this individual provider in the NPPES registry on July 21, 2008.

Where is Larissa Allen located?

Larissa Allen practices at 6130 N La Cholla Blvd Suite 200, Tucson, AZ 85741. The listed phone number is (520) 219-8342.

What is Larissa Allen's specialty?

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

Is Larissa Allen enrolled in Medicare?

Yes. Larissa Allen 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.

What insurance does Larissa Allen accept?

Health plans from Ambetter from Arizona Complete Health and Blue Cross Blue Shield of Arizona list Larissa Allen as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Larissa Allen was last updated on January 5, 2017. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.