DR. THALIA MAYES M.D.
NPI 1033126826
Internal Medicine - Gastroenterology in Portland, ME

Q: What is Thalia Mayes's NPI number?

The NPI number for Thalia Mayes is 1033126826. It was assigned to this individual provider in the NPPES registry on August 2, 2006.

Q: What is Thalia Mayes'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 Thalia Mayes was last updated on September 8, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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 August 02, 2006PECOS EnrolledAccepts Medicare Assignment

98.06/100

CMS Quality Rating

161 MARGINAL WAY, PORTLAND, ME 04101(207) 773-7964(207) 773-9073 Get Directions Write a Review

NPPES record last updated: September 8, 2022. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Sep 8, 2022, Dec 23, 2019 (2 updates tracked since 2019).

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About Dr. Thalia Mayes M.d. NPPES

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

DR. THALIA MAYES M.D. (NPI 1033126826) is an individual gastroenterology provider in Portland, Maine, licensed in Maine (017618) and active in the NPI registry since August 2006. She is enrolled in Medicare PECOS, is affiliated with Maine Medical Center, and is a graduate of University Of Rochester School Of Medicine And Dentistry (2002).

NPPES Registry Identity

NPI1033126826

Entity TypeIndividualFemale

Primary Taxonomy207RG0100X

Provider Legal NameDR. THALIA MAYESCredential: M.D.

Location Address161 MARGINAL WAYPortland, ME 04101-2438

Mailing Address161 Marginal WayPortland, ME 04101-2438 · (207) 773-7964 · Fax (207) 773-9073

Phone(207) 773-7964

Fax(207) 773-9073

Sole ProprietorNo

Medical School CMSUniversity Of Rochester School Of Medicine And DentistryGraduated 2002

Enumeration DateAugust 2, 2006

Last NPPES UpdateSeptember 8, 20222 updates tracked since enumeration

NPPES CertifiedSeptember 8, 2022

✔ NPI 1033126826 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians

Taxonomy Code207RG0100X

License✔ Licensed in ME · 017618

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.

161 MARGINAL WAY, Portland, ME 04101

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Other Identifiers 1

Medicaid432967599ME

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from NH Healthy Families, Anthem Blue Cross and Blue Shield.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

Dr. Thalia Mayes 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 ID3375602667

PECOS Enrollment IDI20081031000055

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 9

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.

Pathology examination of tissue using a microscope, intermediate complexity 88305

A pathology examination of tissue with intermediate complexity involves studying a small sample of your body tissue under a microscope. This helps in identifying any abnormal cells or signs of disease. It's a detailed process requiring expert analysis to ensure accurate results.

236 services86 patients

Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito G0500

Moderate sedation is a method where a physician uses medication to help you relax during a gastrointestinal endoscopy. An independent trained observer will be present to monitor your vital signs and ensure your safety throughout the procedure. It's a common and safe practice.

93 services90 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.

81 services79 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.

77 services55 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.

69 services66 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.

68 services66 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Maine Medical Center

Acute Care Hospitals · Portland, ME

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number200009

Location22 Bramhall StPortland, ME 04102 · Cumberland County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 04101 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

$128.83 typical visit price

range $56.28 – $169.96

Typical copayment $32.20 (range $14.07 – $42.49)

Most-billed visit code 99204

Established Patient

$99.18 typical visit price

range $18.22 – $138.92

Typical copayment $24.79 (range $4.55 – $34.73)

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.

98.06/100

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

Scored through an Alternative Payment Model

Quality

86.13

Promoting Interoperability

100

Improvement Activities

Other Providers at the Same Location NPPES 20

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

LUCY A MACK FNP

Nurse Practitioner (Family)