1. Home
  2. Directory
  3. NPI Profile
Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. ARNALDO M NIEVES RAMIREZ M.D.
NPI 1902866437
Internal Medicine - Gastroenterology in Ponce, PR

Active since March 27, 2006PECOS EnrolledAccepts Medicare Assignment
7810 CALLE NAZARET, URB SANTA MARIA, PONCE, PR 00717(787) 843-0348(787) 840-8623 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Dr. Arnaldo M Nieves Ramirez M.d. NPPES

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

DR. ARNALDO M NIEVES RAMIREZ M.D. (NPI 1902866437) is an individual gastroenterology provider in Ponce, Puerto Rico, licensed in Puerto Rico (12225) and active in the NPI registry since March 2006. He is enrolled in Medicare PECOS and is a graduate of University Central Del Caribe Escuela De Medicina (1990).

NPPES Registry Identity

NPI1902866437
Entity TypeIndividualMale
Primary Taxonomy207RG0100X
Provider Legal NameDR. ARNALDO M NIEVES RAMIREZCredential: M.D.
Location Address7810 CALLE NAZARET, URB SANTA MARIAPonce, PR 00717-1008
Mailing Address376 Calle Gorrion, Camino Del SurPonce, PR 00716-2815 · (787) 284-0799
Phone(787) 843-0348
Fax(787) 840-8623
Sole ProprietorNo
Medical School CMSUniversity Central Del Caribe Escuela De MedicinaGraduated 1990
Enumeration DateMarch 27, 2006
Last NPPES UpdateJuly 13, 2026
✔ NPI 1902866437 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 PR · 12225
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.

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. Arnaldo M Nieves Ramirez 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 ID8527212422
PECOS Enrollment IDI20130130000255
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 2

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.
19 services14 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.
18 services12 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 00717 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
$130.65 typical visit price
range $56.86 – $172.44
Typical copayment $32.66 (range $14.21 – $43.11)
Most-billed visit code 99204
Established Patient
$100.24 typical visit price
range $18.24 – $140.44
Typical copayment $25.06 (range $4.56 – $35.11)
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

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

SOUTHERN GASTROENTEROLOGY MEDICAL GROUP, PSC
Specialist
7810 CALLE NAZARET, URB SANTA MARIA
PONCE, PR 00717
Ponce Municipio (787) 843-0348

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 Arnaldo Nieves Ramirez's NPI number?

The NPI number for Arnaldo Nieves Ramirez is 1902866437. It was assigned to this individual provider in the NPPES registry on March 27, 2006.

Where is Arnaldo Nieves Ramirez located?

Arnaldo Nieves Ramirez practices at 7810 Calle Nazaret Urb Santa Maria, Ponce, PR 00717. The listed phone number is (787) 843-0348.

What is Arnaldo Nieves Ramirez's specialty?

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

Is Arnaldo Nieves Ramirez enrolled in Medicare?

Yes. Arnaldo Nieves Ramirez 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 Arnaldo Nieves Ramirez was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 41 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.