Dr. Karen Nater Pineiro, MD

  • Humacao, PR
  • Neurologist
NPI1043513302PAC ID6002124781
Medicare services, 2021
22
Part D claims, 2024
4,523
Hospital affiliations
1
Industry payments
$11,282
Insurance carriers
4
Practice address
355 Ave Font Martelo, Humacao, PR 00791
Practice phone
Call (787) 852-0768
Professional email
Get professional email
Personal email
Get personal email
Mobile number
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Social profiles

Primary practice

Ryder Memorial Hospital

Hospital · Humacao, Puerto Rico

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Dr. Karen Nater Pineiro is a neurologist in Humacao, Puerto Rico

Dr. Nater Pineiro practices at Ryder Memorial Hospital in Humacao, Puerto Rico, part of Ryder Memorial Hospital.

Dr. Nater Pineiro's NPI, 1043513302, was assigned on December 8, 2010. Dr. Nater Pineiro graduated from San Juan Bautista School of Medicine in 2010. Dr. Nater Pineiro's Puerto Rico license number on file is 18852.

NPI and contact details
Medicare PAC ID
6002124781
NPI enumeration date
December 8, 2010
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(787) 852-0768
Professional email
Get email
Personal email
Get email
Mobile number
Get number
Sex
Female
Estimated age
42
Medical school graduation
2010

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Karen Nater Pineiro practices at Ryder Memorial Hospital in Humacao, Puerto Rico

Dr. Nater Pineiro's primary practice is Ryder Memorial Hospital, at 355 Ave Font Martelo, Humacao, PR 00791 in Humacao County. The practice phone is (787) 852-0768.

Source: Dmand AI Affiliation Data

Dr. Karen Nater Pineiro is affiliated with 1 site of care

Dr. Nater Pineiro's primary practice is Ryder Memorial Hospital in Humacao, Puerto Rico, part of Ryder Memorial Hospital.

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Karen Nater Pineiro's practice

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

EHR by site
SiteEHR vendor and product
Ryder Memorial HospitalAvailable with a free account

Source: Dmand AI Technology Install Data

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Dmand AI maps EHR vendors, IT decision makers and buying committees across Ryder Memorial Hospital and 6.2K+ hospitals, with verified contacts in the same login.

Dr. Karen Nater Pineiro is one of 98 neurologists in Puerto Rico

Neurology is Dr. Nater Pineiro's primary specialty in the NPI Registry, under taxonomy code 2084N0400X. Dr. Nater Pineiro is board certified in neurology by the American Board of Psychiatry and Neurology. Dmand AI has Dr. Nater Pineiro's licenses on file in 2 states: Puerto Rico and Florida.

Specialties and state licenses

  • Neurology, Puerto RicoPrimaryLicense 18852 · 2014 to 2025 · taxonomy 2084N0400X
  • Florida licenseLicense ME123863 · 2015 to 2027

Neurologists near Dr. Nater Pineiro

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

98neurologists in Puerto Rico
2neurologists in Humacao

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

Dr. Karen Nater Pineiro billed Medicare for 22 services in 2021

CMS data shows 22 Medicare services from Dr. Nater Pineiro across 1 procedure code in 2021. Medicare paid $3,721 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 202122
Paid by Medicare$3,721
Procedure codes1

Dr. Nater Pineiro's Medicare services by type, 2020 to 2021

  • 2020
  • 2021
Office and hospital visits
2020: 1332021: 2283%

Dr. Nater Pineiro compared with the Puerto Rico median for neurologists, 2021

  • Dr. Nater Pineiro
  • Puerto Rico median
Medicare services
22vs 4652% below
Part D claims
4,357vs 2,29990% above

Medians across 103 neurologists in Puerto Rico with Dmand AI profiles that report each measure.

Dr. Nater Pineiro's 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. Nater Pineiro

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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Nater Pineiro and other neurologists in Puerto Rico.

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

Dr. Karen Nater Pineiro's patients have a median age of 63

Across all payers, Dmand AI patient panel data puts Dr. Nater Pineiro's median patient age at 63, with 46% women.

Dr. Nater Pineiro's patients across all payers

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

Patient panel by age, all payers

Median age 63

Patient panel by sex, all payers

  • Women46%
  • Men51%

Source: Dmand AI Patient Panel Data

Dr. Karen Nater Pineiro wrote 4,523 Medicare Part D claims in 2024

In 2024, Dr. Nater Pineiro wrote 4,523 Medicare Part D claims for 768 patients. 95% of them were for generic drugs. CMS names the drug for 4,357 of them, across 51 drugs with 11 or more claims each, at $211,666 in total drug cost. In 2023, CMS named 1,673 claims across 35 drugs.

Part D claims, 20244,523
Drugs named by CMS51
Total drug cost$211,666
Part D patients768

Dr. Nater Pineiro's Part D claims by kind of drug, 2024

  • Generic4,319 claims95%
  • Brand-name204 claims5%

Dr. Nater Pineiro's 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. Nater Pineiro's Part D claims, 2024

  • Antipsychotics, patients 65 and over2%101 of 4,523 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: 1,6732024: 4,357160%

Drugs named by CMS: 51 in 2024, 35 in 2023.

See all prescribing by Dr. Nater Pineiro

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

How Dr. Karen Nater Pineiro takes part in Medicare

Dr. Nater Pineiro accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Source: Doctors and Clinicians National Downloadable File (CMS)

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Dr. Karen Nater Pineiro received $11,282 in industry payments from 2016 to 2025

CMS Open Payments shows 193 general payments to Dr. Nater Pineiro from 20 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 50% of the total. Biogen, Inc. paid the most, $5,717.

General payments to Dr. Nater Pineiro by program year, 2016 to 2025

General payments to Dr. Nater Pineiro by kind, 2016 to 2025

$11.3Kin total
  • Food and beverage$5,59250%
  • Consulting fees$4,68041%
  • Travel and lodging$9979%
  • Education$130%

Companies that paid Dr. Nater Pineiro the most, 2016 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Nater Pineiro

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

Dr. Karen Nater Pineiro graduated from San Juan Bautista School of Medicine

Dr. Nater Pineiro graduated from San Juan Bautista School of Medicine in 2010.

  1. Medical schoolSan Juan Bautista School of Medicine
  2. Board certified in neurologyAmerican Board of Psychiatry and Neurology

Source: Dmand AI Professional Profile Data

Dr. Karen Nater Pineiro accepts plans from 4 insurance carriers

Dr. Nater Pineiro is in network with 4 carriers, including Blue Cross Blue Shield of Michigan, Blue Cross Blue Shield of Massachusetts and HCSC. PPO plans come from the most carriers, 4. Check the plan with the practice before a visit.

  • Blue Cross Blue Shield of Michigan
  • Blue Cross Blue Shield of Massachusetts
  • HCSC
  • Regence Health Plans

Plan types Dr. Nater Pineiro accepts, by number of carriers

  1. PPO4
  2. Medicare3
  3. HMO1
  4. POS1

Source: Dmand AI Insurance Network Data

Sources for Dr. Karen Nater Pineiro'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 phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy 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)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
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. Karen Nater Pineiro

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. Karen Nater Pineiro's NPI number?

Dr. Karen Nater Pineiro's NPI number is 1043513302. It was assigned on December 8, 2010, and it is active in the NPI Registry.

What kind of doctor is Dr. Karen Nater Pineiro?

Dr. Karen Nater Pineiro is a neurologist in Humacao, Puerto Rico. The primary specialty in the NPI Registry is Neurology Physician (taxonomy code 2084N0400X).

Where does Dr. Karen Nater Pineiro practice?

Dr. Nater Pineiro practices at 355 Ave Font Martelo, Humacao, PR 00791. Dr. Nater Pineiro's primary practice is Ryder Memorial Hospital in Humacao, Puerto Rico, part of Ryder Memorial Hospital.

What is Dr. Karen Nater Pineiro's office phone number?

The practice phone on file for Dr. Nater Pineiro is (787) 852-0768.

What is Dr. Karen Nater Pineiro's medical license number?

Dr. Nater Pineiro's Puerto Rico license number on file is 18852, one of the licenses on file in 2 states.

Which states has Dr. Karen Nater Pineiro been licensed in?

Dmand AI has state licenses on file for Dr. Nater Pineiro in Puerto Rico (2014 to 2025) and Florida (2015 to 2027).

Which hospitals is Dr. Karen Nater Pineiro affiliated with?

Dr. Nater Pineiro practices at Ryder Memorial Hospital in Humacao, Puerto Rico.

Does Dr. Karen Nater Pineiro accept Medicare?

Yes. CMS data shows Dr. Nater Pineiro billed Medicare for 22 services in 2021, and Dr. Nater Pineiro accepts Medicare assignment.

Is Dr. Karen Nater Pineiro board certified?

Yes. Dr. Nater Pineiro is board certified in neurology by the American Board of Psychiatry and Neurology.

What services does Dr. Karen Nater Pineiro bill to Medicare?

In 2021, Dr. Nater Pineiro's most billed Medicare services were hospital inpatient care (99223).

Show 5 more questionsShow fewer questions

Where did Dr. Karen Nater Pineiro go to medical school?

Dr. Nater Pineiro graduated from San Juan Bautista School of Medicine in 2010.

What drugs does Dr. Karen Nater Pineiro prescribe most?

In 2024 Medicare Part D data, Dr. Nater Pineiro's most prescribed drugs by claims were Donepezil HCl, Memantine HCl and Sertraline HCl.

Has Dr. Karen Nater Pineiro received payments from drug or device companies?

CMS Open Payments shows $11,282 in general payments to Dr. Nater Pineiro from 20 companies from 2016 to 2025. The largest total came from Biogen, Inc.

How long has Dr. Karen Nater Pineiro been practicing?

Dr. Nater Pineiro graduated from medical school in 2010, 16 years ago.

What insurance does Dr. Karen Nater Pineiro accept?

Dr. Nater Pineiro is in network with 4 carriers, including Blue Cross Blue Shield of Michigan, Blue Cross Blue Shield of Massachusetts and HCSC. PPO plans come from the most carriers, 4. Check the plan with the practice before a visit.

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