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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

ALOYSIUS KIHYOK RHO MD
NPI 1710987334
Internal Medicine - Gastroenterology in Brunswick, ME

Active since July 26, 2005PECOS Enrolled
121 MEDICAL CENTER DR STE 3400, BRUNSWICK, ME 04011(207) 406-7300(207) 835-4736 Get Directions Write a Review

NPPES record last updated: July 14, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Jul 14, 2026, Dec 11, 2019 (2 updates tracked since 2019).

About Aloysius Kihyok Rho Md NPPES

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

ALOYSIUS KIHYOK RHO MD (NPI 1710987334) is an individual gastroenterology provider in Brunswick, Maine, licensed in Maine (MD26835) and active in the NPI registry since July 2005. He is enrolled in Medicare PECOS, is affiliated with Northern Light Health, and maintains a secondary practice location in Princeton.

NPPES Registry Identity

NPI1710987334
Entity TypeIndividualMale
Primary Taxonomy207RG0100X
Provider Legal NameALOYSIUS KIHYOK RHOCredential: MD
Location Address121 MEDICAL CENTER DR STE 3400Brunswick, ME 04011-2675
Mailing Address121 Medical Center Dr Ste 3400Brunswick, ME 04011-2675 · (207) 406-7300 · Fax (207) 835-4736
Phone(207) 406-7300
Fax(207) 835-4736
Sole ProprietorNo
Medical School CMSOtherGraduated 1994
Enumeration DateJuly 26, 2005
Last NPPES UpdateJuly 14, 20262 updates tracked since enumeration
NPPES CertifiedJuly 14, 2026
✔ NPI 1710987334 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians
Taxonomy Code207RG0100X
Licenses✔ Licensed in ME · MD26835✔ Licensed in NJ · 25MA07036700
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.
121 MEDICAL CENTER DR STE 3400, Brunswick, ME 04011
Open in Google Maps ↗

Secondary Practice Location 1

Location 1731 Alexander Rd, Suite 100Princeton, NJ 08540-6345 · Phone (609) 924-1422 · Fax (609) 924-7473

Other Identifiers 8

Other0821011000Keystone
Other2168365003Cigna
Other0000910163Amerihealth Personal Choi
Other000795866Personal Choice
Other2326267Aetna
Other00795866Independent Blue Cross
Other0811335000Amerihealth Hmo
Other100014087Medicaid For Rr

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

Aloysius Kihyok Rho 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 ID3971523861
PECOS Enrollment IDI20230518001170
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 10

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.

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 services64 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.
59 services59 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.
32 services32 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.
31 services31 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.
30 services30 patients
Dilation of esophagus 43450
Dilation of the esophagus is a procedure aimed to stretch or open up your esophagus (the tube connecting your mouth to your stomach) when it's narrow. It helps to improve swallowing and alleviate discomfort. It's typically performed using a flexible tube or balloon, under sedation.
25 services24 patients

Hospital Affiliations CMS Care Compare 2

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

Northern Light Health

Acute Care Hospitals · Portland, ME
4/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number200008
Location144 State StreetPortland, ME 04101 · Cumberland County
Emergency services Birthing friendly

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 04011 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.

Referred Medical Equipment & Supplies CMS DME claims 4

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

Parenteral nutrition solution, not otherwise specified, 10 grams lipids B4185
Other-Enteral and Parenteral · category OB005N
1 supplier52 claims1,412 services$11.27 avg. paid by Medicare
Parenteral nutrition solution; compounded amino acid and carbohydrates with electrolytes, trace elements, and vitamins, including preparation, any strength, 52 to 73 grams of protein - premix B4193
Other-Enteral and Parenteral · category OB005N
1 supplier52 claims366 services$230.40 avg. paid by Medicare
Parenteral nutrition supply kit; premix, per day B4220
Other-Enteral and Parenteral · category OB005N
1 supplier52 claims366 services$8.03 avg. paid by Medicare
Parenteral nutrition administration kit, per day B4224
Other-Enteral and Parenteral · category OB005N
1 supplier52 claims366 services$25.06 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 4

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

MR. DONNA VICTORIA RODRIGUEZ PA
Physician Assistant (Surgical)
121 MEDICAL CENTER DR STE 3400
BRUNSWICK, ME 04011
Cumberland County (207) 406-7300
VIRGINIA MARION CAMPBELL AGACNP-BC
Nurse Practitioner (Acute Care)
121 MEDICAL CENTER DR STE 3400
BRUNSWICK, ME 04011
Cumberland County (207) 406-7300
GLENNA CLAIRE BRENNAN CRNP
Nurse Practitioner (Adult Health)
121 MEDICAL CENTER DR STE 3400
BRUNSWICK, ME 04011
Cumberland County (207) 406-7300
LAURA BRADBURY SMITH-TUCKER FNP
Nurse Practitioner (Family)
121 MEDICAL CENTER DR STE 3400
BRUNSWICK, ME 04011
Cumberland County (207) 406-7300

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 Aloysius Rho's NPI number?

The NPI number for Aloysius Rho is 1710987334. It was assigned to this individual provider in the NPPES registry on July 26, 2005.

Where is Aloysius Rho located?

Aloysius Rho practices at 121 Medical Center Dr Ste 3400, Brunswick, ME 04011. The listed phone number is (207) 406-7300.

What is Aloysius Rho's specialty?

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

Is Aloysius Rho enrolled in Medicare?

Yes. Aloysius Rho 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.

Is Aloysius Rho affiliated with any hospitals?

According to CMS data, Aloysius Rho is affiliated with Northern Light Health and Maine Medical Center.

When was this NPI record last updated?

The NPPES record for Aloysius Rho was last updated on July 14, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 30 days 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.