Dr. Trinidad Atayoc Lim, MD

  • Yuma, AZ
  • Nephrologist
NPI1598716979PAC ID8022903269
Medicare services, 2024
15,370
Medicare patients, 2024
761
Part D claims, 2024
3,137
Hospital affiliations
2
Industry payments
$5,488
Practice address
1220 W 24th St, Yuma, AZ 85364
Practice phone
Call (928) 317-0517
Professional email
Get professional email
Personal email
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Mobile number
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Social profiles

Primary practice

South Yuma Dialysis

Yuma, Arizona

See all 8 affiliations

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Dr. Trinidad Atayoc Lim is a nephrologist in Yuma, Arizona

Dr. Lim practices at South Yuma Dialysis in Yuma, Arizona.

Dr. Lim's NPI, 1598716979, was assigned on May 12, 2006. Dr. Lim graduated from Saint Louis University School of Medicine in 1989. Dr. Lim holds Arizona license 33462.

NPI and contact details
Medicare PAC ID
8022903269
NPI enumeration date
May 12, 2006
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(928) 317-0517
Professional email
Get email
Personal email
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Mobile number
Get number
Sex
Female
Estimated age
63
Medical school graduation
1989

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

Dr. Trinidad Atayoc Lim practices at South Yuma Dialysis in Yuma, Arizona

Dr. Lim's primary practice is South Yuma Dialysis, at 1220 W 24th St, Yuma, AZ 85364 in Yuma County. The practice phone is (928) 317-0517.

  • South Yuma Dialysis
    1220 W 24th St, Yuma, AZ 85364 · Yuma CountyPhone(928) 317-0517

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

Dr. Trinidad Atayoc Lim is affiliated with 7 sites of care and 1 medical group

Dr. Lim's primary practice is South Yuma Dialysis in Yuma, Arizona. Dr. Lim is also affiliated with Onvida Health Yuma Medical Center. The medical group on file is Yuma Nephrology, P.C. Dmand AI also links Dr. Lim to 1 more hospital, 3 dialysis centers and 1 group practice or clinic, each named with a free account.

See all 8 affiliations for Dr. Lim

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

Dmand AI tracks the EHR system at Dr. Trinidad Atayoc Lim's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Lim practices, 6 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
South Yuma DialysisAvailable with a free account
+6 more affiliated sitesAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Trinidad Atayoc Lim is one of 268 nephrologists in Arizona

Nephrology is Dr. Lim's primary specialty in the NPI Registry, under taxonomy code 207RN0300X. Dr. Lim is licensed in Arizona.

Specialties and state licenses

  • Nephrology, ArizonaPrimaryLicense 33462 · taxonomy 207RN0300X

Nephrologists near Dr. Lim

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

268nephrologists in Arizona
8nephrologists in Yuma

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

Dr. Trinidad Atayoc Lim billed Medicare for 15,370 services in 2024

CMS data shows 15,370 Medicare services from Dr. Lim across 36 procedure codes in 2024, for 761 Medicare patients. Medicare paid $286,640 for them.

Medicare services, 202415,370
Medicare patients761
Paid by Medicare$286,640
Procedure codes36

Dr. Lim's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Other services
2023: 02024: 8,160
Lab and pathology
2023: 5,0262024: 4,5679%
Office and hospital visits
2023: 8082024: 99023%
Surgery
2023: 9162024: 8448%
Tests and treatments
2023: 6022024: 73422%
Imaging
2023: 482024: 5310%
Drugs given in the office
2023: 02024: 22

Where Dr. Lim's Medicare services took place, 2024

  • In an office14,70796%
  • In a facility6634%

Dr. Lim compared with the Arizona median for nephrologists, 2024

  • Dr. Lim
  • Arizona median
Medicare services
15,370vs 1,45910.5 times
Medicare patients
761vs 40190% above
Part D claims
2,952vs 8403.5 times

Medians across 272 nephrologists in Arizona with Dmand AI profiles that report each measure.

Dr. Lim's most billed Medicare procedure codes, 2024

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. Lim

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

Dr. Trinidad Atayoc Lim treated 761 Medicare patients in 2024, average age 76

CMS counts 761 Medicare patients who saw Dr. Lim in 2024. The largest group is 75 to 84, with 307 patients. 75% of them have chronic kidney disease, and 75% have high blood pressure. 24% are also on Medicaid. Their average risk score is 3.25, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Dr. Lim's median patient age at 72, with 46% women.

Medicare patients, 2024761
Average age76
Average risk score3.25
Also on Medicaid24%

Dr. Lim's Medicare patients by age, 2024

Dr. Lim's Medicare patients by sex, 2024

  • Women38450%
  • Men37750%

Chronic conditions among Dr. Lim's Medicare patients, 2024

  1. Chronic kidney disease75%
  2. High blood pressure75%
  3. High cholesterol75%
  4. Diabetes58%
  5. Ischemic heart disease51%
  6. Arthritis47%
  7. Heart failure43%
  8. Atrial fibrillation31%

Share of Medicare patients with each condition. A patient can have several.

Dr. Lim's patients across all payers

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

Patient panel by age, all payers

Median age 72

Patient panel by sex, all payers

  • Women46%
  • Men54%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Trinidad Atayoc Lim wrote 3,137 Medicare Part D claims in 2024

In 2024, Dr. Lim wrote 3,137 Medicare Part D claims for 562 patients. 79% of them were for generic drugs. CMS names the drug for 2,952 of them, across 48 drugs with 11 or more claims each, at $594,145 in total drug cost. In 2023, CMS named 2,279 claims across 38 drugs.

Part D claims, 20243,137
Drugs named by CMS48
Total drug cost$594,145
Part D patients562

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

  • Generic2,492 claims79%
  • Brand-name645 claims21%

Dr. Lim'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. Lim's Part D claims, 2024

  • Antibiotics3%98 of 3,137 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: 2,2792024: 2,95230%

Drugs named by CMS: 48 in 2024, 38 in 2023.

See all prescribing by Dr. Lim

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. Trinidad Atayoc Lim takes part in Medicare

Dr. Lim 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. Trinidad Atayoc Lim received $5,488 in industry payments from 2016 to 2025

CMS Open Payments shows 211 general payments to Dr. Lim from 33 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 95% of the total. AstraZeneca Pharmaceuticals LP paid the most, $845.

General payments to Dr. Lim by program year, 2016 to 2025

General payments to Dr. Lim by kind, 2016 to 2025

$5.5Kin total
  • Food and beverage$5,19295%
  • Education$2975%

Companies that paid Dr. Lim the most, 2016 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Lim

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

Dr. Trinidad Atayoc Lim graduated from Saint Louis University School of Medicine

Dr. Lim graduated from Saint Louis University School of Medicine in 1989.

  1. Medical schoolSaint Louis University School of Medicine

Source: Dmand AI Professional Profile Data

Sources for Dr. Trinidad Atayoc Lim'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 Practice Data
Primary practice, affiliations and health systemNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand 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 DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
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
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. Trinidad Atayoc Lim

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. Trinidad Atayoc Lim's NPI number?

Dr. Trinidad Atayoc Lim's NPI number is 1598716979. It was assigned on May 12, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Trinidad Atayoc Lim?

Dr. Trinidad Atayoc Lim is a nephrologist in Yuma, Arizona. The primary specialty in the NPI Registry is Nephrology Physician (taxonomy code 207RN0300X).

Where does Dr. Trinidad Atayoc Lim practice?

Dr. Lim practices at 1220 W 24th St, Yuma, AZ 85364. Dr. Lim's primary practice is South Yuma Dialysis in Yuma, Arizona. Dmand AI also links Dr. Lim to 1 hospital, 3 dialysis centers and 1 group practice or clinic.

What is Dr. Trinidad Atayoc Lim's office phone number?

The practice phone on file for Dr. Lim is (928) 317-0517.

What is Dr. Trinidad Atayoc Lim's medical license number?

Dr. Lim holds Arizona license 33462.

Which hospitals is Dr. Trinidad Atayoc Lim affiliated with?

Dr. Lim is affiliated with Onvida Health Yuma Medical Center. Dmand AI links Dr. Lim to 1 more hospital.

What medical group is Dr. Trinidad Atayoc Lim part of?

Dr. Lim is linked to Yuma Nephrology, P.C.

Does Dr. Trinidad Atayoc Lim accept Medicare?

Yes. CMS data shows Dr. Lim billed Medicare for 15,370 services in 2024, and Dr. Lim accepts Medicare assignment.

How many Medicare patients does Dr. Trinidad Atayoc Lim see?

CMS counts 761 Medicare patients who saw Dr. Lim in 2024, with an average age of 76.

What services does Dr. Trinidad Atayoc Lim bill to Medicare?

In 2024, Dr. Lim's most billed Medicare services were medicare temporary code (Q0138), surgery: heart and blood vessels (36415) and lab and pathology test (85025).

Show 4 more questionsShow fewer questions

Where did Dr. Trinidad Atayoc Lim go to medical school?

Dr. Lim graduated from Saint Louis University School of Medicine in 1989.

What drugs does Dr. Trinidad Atayoc Lim prescribe most?

In 2024 Medicare Part D data, Dr. Lim's most prescribed drugs by claims were Calcitriol, Amlodipine Besylate and Furosemide.

Has Dr. Trinidad Atayoc Lim received payments from drug or device companies?

CMS Open Payments shows $5,488 in general payments to Dr. Lim from 33 companies from 2016 to 2025. The largest total came from AstraZeneca Pharmaceuticals LP.

How long has Dr. Trinidad Atayoc Lim been practicing?

Dr. Lim graduated from medical school in 1989, 37 years ago.

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