Dr. Erin Yim, MD

  • Duarte, CA
  • Hospitalist
NPI1396326062PAC ID6103210877
Medicare services, 2024
25
Medicare patients, 2024
33
Part D claims, 2024
159
MIPS score, 2024
88
Hospital affiliations
2
Practice address
1500 Duarte Rd, Duarte, CA 91010
Practice phone
Call (800) 826-4673
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

City of Hope Comprehensive Cancer Center - Duarte

Duarte, California

See all 6 affiliations

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Dr. Erin Yim is a hospitalist in Duarte, California

Dr. Yim practices at City of Hope Comprehensive Cancer Center - Duarte in Duarte, California.

Dr. Yim's NPI, 1396326062, was assigned on April 15, 2021. Dr. Yim graduated from Loma Linda University School Of Medicine in 2021. Dr. Yim's California license number on file is A192378.

NPI and contact details
Medicare PAC ID
6103210877
NPI enumeration date
April 15, 2021
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(800) 826-4673
Professional email
Get email
Personal email
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Mobile number
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Sex
Female
Estimated age
31
Medical school graduation
2021

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

Dr. Erin Yim practices at City of Hope Comprehensive Cancer Center - Duarte in Duarte, California

Dr. Yim's primary practice is City of Hope Comprehensive Cancer Center - Duarte, at 1500 Duarte Rd, Duarte, CA 91010 in Los Angeles County. The practice phone is (800) 826-4673.

  • City of Hope Comprehensive Cancer Center - Duarte
    1500 Duarte Rd, Duarte, CA 91010 · Los Angeles CountyPhone(800) 826-4673

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

Dr. Erin Yim is affiliated with 4 sites of care and 2 medical groups

Dr. Yim's primary practice is City of Hope Comprehensive Cancer Center - Duarte in Duarte, California. Dr. Yim is also affiliated with Ronald Reagan UCLA Medical Center. The medical group on file is Southern California Permanente Medical Group. Dmand AI also links Dr. Yim to 1 more hospital, 1 other site and 1 medical group, each named with a free account.

See all 6 affiliations for Dr. Yim

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. Erin Yim's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Yim practices, 3 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
City of Hope Comprehensive Cancer Center - DuarteAvailable with a free account
+3 more sites and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Erin Yim is one of 3,186 hospitalists in California

Hospitalist is Dr. Yim's primary specialty in the NPI Registry, under taxonomy code 208M00000X. Dr. Yim is board certified in internal medicine by the American Board of Internal Medicine. Dr. Yim has a license on file in California.

Specialties and state licenses

  • Hospitalist, CaliforniaPrimaryLicense A192378 · 2023 to 2025 · taxonomy 208M00000X

Hospitalists near Dr. Yim

Counts of hospitalists 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. Erin Yim billed Medicare for 25 services in 2024

CMS data shows 25 Medicare services from Dr. Yim across 1 procedure code in 2024, for 33 Medicare patients. Medicare paid $3,526 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 202425
Medicare patients33
Paid by Medicare$3,526
Procedure codes1

Dr. Yim compared with the California median for hospitalists, 2024

  • Dr. Yim
  • California median
Medicare services
25vs 43094% below
Medicare patients
33vs 20184% below
Part D claims
28vs 6959% below

Medians across 2,991 hospitalists in California with Dmand AI profiles that report each measure.

Dr. Yim'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. Yim

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

Dr. Erin Yim treated 33 Medicare patients in 2024, average age 70

CMS counts 33 Medicare patients who saw Dr. Yim in 2024. The largest group is 65 to 74, with 15 patients. 75% of them have high blood pressure, and 61% have high cholesterol. 39% are also on Medicaid. Their average risk score is 3.22, 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. Yim's median patient age at 63, with 56% women.

Medicare patients, 202433
Average age70
Average risk score3.22
Also on Medicaid39%

Dr. Yim's Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Dr. Yim's Medicare patients by sex, 2024

  • Women2061%
  • Men1339%

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

  1. High blood pressure75%
  2. High cholesterol61%
  3. Arthritis55%
  4. Anxiety48%
  5. Cancer45%
  6. Diabetes45%
  7. Chronic kidney disease42%
  8. Ischemic heart disease42%

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

Dr. Yim'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

  • Women56%
  • Men43%

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

Dr. Erin Yim wrote 159 Medicare Part D claims in 2024

In 2024, Dr. Yim wrote 159 Medicare Part D claims for 32 patients. 74% of them were for generic drugs. CMS names the drug for 28 of them, across 2 drugs with 11 or more claims each, at $213 in total drug cost. In 2023, CMS named 128 claims across 7 drugs.

Part D claims, 2024159
Drugs named by CMS2
Total drug cost$213
Part D patients32

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

  • Generic117 claims74%
  • Brand-name and other42 claims26%

Dr. Yim'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.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 1282024: 2878%

Drugs named by CMS: 2 in 2024, 7 in 2023.

See all prescribing by Dr. Yim

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

Dr. Erin Yim scored 88 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 88 out of 100 for Dr. Yim for performance year 2024, reported as part of a group. Dr. Yim accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Dr. Yim's MIPS scores, performance year 2024

  • 88of 100Final score
  • 79.4of 100Quality
  • 100of 100Promoting Interoperability
  • 40of 100Improvement Activities
  • 74of 100Cost

Each score is out of 100. The final score weighs the categories CMS scored for this clinician.

Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026

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Dr. Erin Yim received $100 in industry payments in 2024

CMS Open Payments shows 1 general payment to Dr. Yim from 1 drug or device company in 2024. Food and beverage make up the largest share, 100% of the total. Amgen Inc. paid the most, $100.

Companies that paid Dr. Yim the most, 2024 to 2024

Share is of all general payments to this clinician.

See all payments to Dr. Yim

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

Dr. Erin Yim graduated from Loma Linda University School Of Medicine

Dr. Yim graduated from Loma Linda University School Of Medicine in 2021.

  1. Medical schoolLoma Linda University School Of Medicine
  2. Board certified in internal medicineAmerican Board of Internal Medicine

Source: Dmand AI Professional Profile Data

Dr. Erin Yim accepts plans from 1 insurance carrier

Dr. Yim is in network with 1 carrier, including CMS Medicare. Medicare plans come from the most carriers, 1. Check the plan with the practice before a visit.

  • CMS Medicare

Source: Dmand AI Insurance Network Data

Sources for Dr. Erin Yim'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)Clinician Public Reporting: Overall MIPS Performance (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. Erin Yim

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. Erin Yim's NPI number?

Dr. Erin Yim's NPI number is 1396326062. It was assigned on April 15, 2021, and it is active in the NPI Registry.

What kind of doctor is Dr. Erin Yim?

Dr. Erin Yim is a hospitalist in Duarte, California. The primary specialty in the NPI Registry is Hospitalist Physician (taxonomy code 208M00000X).

Where does Dr. Erin Yim practice?

Dr. Yim practices at 1500 Duarte Rd, Duarte, CA 91010. Dr. Yim's primary practice is City of Hope Comprehensive Cancer Center - Duarte in Duarte, California. Dmand AI also links Dr. Yim to 1 hospital, 1 other site and 1 medical group.

What is Dr. Erin Yim's office phone number?

The practice phone on file for Dr. Yim is (800) 826-4673.

What is Dr. Erin Yim's medical license number?

Dr. Yim's California license number on file is A192378.

Which hospitals is Dr. Erin Yim affiliated with?

Dr. Yim is affiliated with Ronald Reagan UCLA Medical Center. Dmand AI links Dr. Yim to 1 more hospital.

What medical group is Dr. Erin Yim part of?

Dr. Yim is linked to Southern California Permanente Medical Group. Dmand AI links Dr. Yim to 1 more medical group.

Does Dr. Erin Yim accept Medicare?

Yes. CMS data shows Dr. Yim billed Medicare for 25 services in 2024, and Dr. Yim accepts Medicare assignment.

What is Dr. Erin Yim's MIPS score?

Dr. Yim's MIPS final score for performance year 2024 is 88 out of 100, reported as part of a group.

How many Medicare patients does Dr. Erin Yim see?

CMS counts 33 Medicare patients who saw Dr. Yim in 2024, with an average age of 70.

Show 7 more questionsShow fewer questions

Is Dr. Erin Yim board certified?

Yes. Dr. Yim is board certified in internal medicine by the American Board of Internal Medicine.

What services does Dr. Erin Yim bill to Medicare?

In 2024, Dr. Yim's most billed Medicare services were hospital inpatient care (99223).

Where did Dr. Erin Yim go to medical school?

Dr. Yim graduated from Loma Linda University School Of Medicine in 2021.

What drugs does Dr. Erin Yim prescribe most?

In 2024 Medicare Part D data, Dr. Yim's most prescribed drugs by claims were Amlodipine Besylate and Metformin HCl.

Has Dr. Erin Yim received payments from drug or device companies?

CMS Open Payments shows $100 in general payments to Dr. Yim from 1 company from 2024 to 2024. The largest total came from Amgen Inc.

How long has Dr. Erin Yim been practicing?

Dr. Yim graduated from medical school in 2021, 5 years ago.

What insurance does Dr. Erin Yim accept?

Dr. Yim is in network with 1 carrier, including CMS Medicare. Medicare plans come from the most carriers, 1. Check the plan with the practice before a visit.

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