Dr. Alex Reinaldo Gutierrez Nieves, MD

  • San Juan, PR
  • General practice physician
NPI1114297868
Medicare services, 2021
12
Part D claims, 2024
3,244
Industry payments
$20
Affiliated sites
1
Medical group
1
Practice address
Naranjito Shooping Village, Naranjito, PR 00719
Practice phone
Call (939) 274-9637
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Senior Primary Medical

Physician office · Naranjito, Puerto Rico

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Dr. Alex Reinaldo Gutierrez Nieves is a general practice physician in San Juan, Puerto Rico

Dr. Gutierrez Nieves practices at Senior Primary Medical in Naranjito, Puerto Rico.

Dr. Gutierrez Nieves' NPI, 1114297868, was assigned on January 11, 2012. Dr. Gutierrez Nieves holds Puerto Rico license 18466.

NPI and contact details
NPI enumeration date
January 11, 2012
NPI status
Active
Practice phone
(939) 274-9637
Professional email
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Personal email
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Mobile number
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Sex
Male
Estimated age
42
Medical school graduation
2010

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data

Dr. Alex Reinaldo Gutierrez Nieves practices in Naranjito and San Juan

Dr. Gutierrez Nieves' primary practice is Senior Primary Medical, at Naranjito Shooping Village, Naranjito, PR 00719. The practice phone is (939) 274-9637. The NPI Registry lists Dr. Gutierrez Nieves' practice address as 405 De Diego, San Juan, PR 00923.

  • Senior Primary MedicalPrimary
    Naranjito Shooping Village, Naranjito, PR 00719Phone(939) 274-9637
  • NPI Registry address
    405 De Diego, San Juan, PR 00923 · San Juan CountyPhone(939) 274-9637

Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; and Dmand AI Practice Data

Dr. Alex Reinaldo Gutierrez Nieves is affiliated with 1 site of care and 1 medical group

Dr. Gutierrez Nieves' primary practice is Senior Primary Medical in Naranjito, Puerto Rico. The medical group on file is HIMA San Pablo Caguas Hospital.

Senior Primary MedicalPhysician office · Naranjito, Puerto RicoPrimary
HIMA San Pablo Caguas HospitalPrimary care group, Caguas, PR

Source: Dmand AI Affiliation Data

Dmand AI tracks the EHR system at Dr. Alex Reinaldo Gutierrez Nieves' practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Gutierrez Nieves practices. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Senior Primary MedicalAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Alex Reinaldo Gutierrez Nieves is one of 2,604 general practice physicians in Puerto Rico

General practice is Dr. Gutierrez Nieves' primary specialty in the NPI Registry, under taxonomy code 208D00000X. Dmand AI has Dr. Gutierrez Nieves' licenses on file in 2 states: Puerto Rico and Florida.

Specialties and state licenses

  • General practice, Puerto RicoPrimaryLicense 18466 · taxonomy 208D00000X
  • Florida licenseLicense ACN1001

General practice physicians near Dr. Gutierrez Nieves

Counts of general practice physicians with a Dmand AI profile, by place and practice. Each opens the list.

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. Alex Reinaldo Gutierrez Nieves billed Medicare for 12 services in 2021

CMS data shows 12 Medicare services from Dr. Gutierrez Nieves across 1 procedure code in 2021. Medicare paid $691 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 202112
Paid by Medicare$691
Procedure codes1

Dr. Gutierrez Nieves' Medicare services by type, 2019 to 2021

  • 2019
  • 2021
Office and hospital visits
2019: 142021: 1214%

Dr. Gutierrez Nieves compared with the Puerto Rico median for general practice physicians, 2021

  • Dr. Gutierrez Nieves
  • Puerto Rico median
Medicare services
12vs 3465% below
Part D claims
2,857vs 7353.9 times

Medians across 3,001 general practice physicians in Puerto Rico with Dmand AI profiles that report each measure.

Dr. Gutierrez Nieves' most billed Medicare procedure codes, 2021

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

See all procedures by Dr. Gutierrez Nieves

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Alex Reinaldo Gutierrez Nieves' patients have a median age of 82

Across all payers, Dmand AI patient panel data puts Dr. Gutierrez Nieves' median patient age at 82, with 100% women.

Dr. Gutierrez Nieves' patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 82

Patient panel by sex, all payers

  • Women100%
  • Men0%

Source: Dmand AI Patient Panel Data

Dr. Alex Reinaldo Gutierrez Nieves wrote 3,244 Medicare Part D claims in 2024

In 2024, Dr. Gutierrez Nieves wrote 3,244 Medicare Part D claims for 222 patients. 87% of them were for generic drugs. CMS names the drug for 2,857 of them, across 81 drugs with 11 or more claims each, at $116,736 in total drug cost. In 2023, CMS named 3,104 claims across 88 drugs.

Part D claims, 20243,244
Drugs named by CMS81
Total drug cost$116,736
Part D patients222

Dr. Gutierrez Nieves' Part D claims by kind of drug, 2024

  • Generic2,836 claims87%
  • Brand-name and other408 claims13%

Dr. Gutierrez Nieves' most prescribed drugs by claims, 2024

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Drug classes CMS tracks in Dr. Gutierrez Nieves' Part D claims, 2024

  • Antibiotics1%29 of 3,244 claims
  • Antipsychotics, patients 65 and over1%24 of 3,244 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 3,1042024: 2,8578%

Drugs named by CMS: 81 in 2024, 88 in 2023.

See all prescribing by Dr. Gutierrez Nieves

Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data

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Dr. Alex Reinaldo Gutierrez Nieves received $20 in industry payments in 2019

CMS Open Payments shows 1 general payment to Dr. Gutierrez Nieves from 1 drug or device company in 2019. Food and beverage make up the largest share, 100% of the total. Merck Sharp & Dohme Corporation paid the most, $20.

Companies that paid Dr. Gutierrez Nieves the most, 2019 to 2019

Share is of all general payments to this clinician.

See all payments to Dr. Gutierrez Nieves

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Sources for Dr. Alex Reinaldo Gutierrez Nieves's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Affiliation DataDmand AI Practice Data
Primary practice, affiliations and health systemDmand AI Affiliation Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel Data
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Alex Reinaldo Gutierrez Nieves

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Dr. Alex Reinaldo Gutierrez Nieves' NPI number?

Dr. Alex Reinaldo Gutierrez Nieves' NPI number is 1114297868. It was assigned on January 11, 2012, and it is active in the NPI Registry.

What kind of doctor is Dr. Alex Reinaldo Gutierrez Nieves?

Dr. Alex Reinaldo Gutierrez Nieves is a general practice physician in San Juan, Puerto Rico. The primary specialty in the NPI Registry is General Practice Physician (taxonomy code 208D00000X).

Where does Dr. Alex Reinaldo Gutierrez Nieves practice?

Dr. Gutierrez Nieves practices at Naranjito Shooping Village, Naranjito, PR 00719. Dr. Gutierrez Nieves also practices at 405 De Diego, San Juan, PR 00923. Dr. Gutierrez Nieves' primary practice is Senior Primary Medical in Naranjito, Puerto Rico.

What is Dr. Alex Reinaldo Gutierrez Nieves' office phone number?

The practice phone on file for Dr. Gutierrez Nieves is (939) 274-9637.

What is Dr. Alex Reinaldo Gutierrez Nieves' medical license number?

Dr. Gutierrez Nieves holds Puerto Rico license 18466, one of the licenses on file in 2 states.

Which states has Dr. Alex Reinaldo Gutierrez Nieves been licensed in?

Dmand AI has state licenses on file for Dr. Gutierrez Nieves in Puerto Rico and Florida.

What medical group is Dr. Alex Reinaldo Gutierrez Nieves part of?

Dr. Gutierrez Nieves is linked to HIMA San Pablo Caguas Hospital.

Does Dr. Alex Reinaldo Gutierrez Nieves accept Medicare?

Yes. CMS data shows Dr. Gutierrez Nieves billed Medicare for 12 services in 2021.

What services does Dr. Alex Reinaldo Gutierrez Nieves bill to Medicare?

In 2021, Dr. Gutierrez Nieves' most billed Medicare services were emergency department visit (99284).

What drugs does Dr. Alex Reinaldo Gutierrez Nieves prescribe most?

In 2024 Medicare Part D data, Dr. Gutierrez Nieves' most prescribed drugs by claims were Ondansetron HCl, Pantoprazole Sodium and Synthroid.

Has Dr. Alex Reinaldo Gutierrez Nieves received payments from drug or device companies?

CMS Open Payments shows $20 in general payments to Dr. Gutierrez Nieves from 1 company from 2019 to 2019. The largest total came from Merck Sharp & Dohme Corporation.

How long has Dr. Alex Reinaldo Gutierrez Nieves been practicing?

Dr. Gutierrez Nieves graduated from medical school in 2010, 16 years ago.

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