Christina Hyelim Lee

  • Walnut Creek, CA
  • Anesthesiologist
NPI1639478803PAC ID9133412117
Medicare services, 2024
148
Medicare patients, 2024
226
Hospital affiliations
1
Industry payments
$120
Medical groups
4
Practice address
2750 Sycamore Dr, Simi Valley, CA 93065
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Aspen Surgery Center - HOPD

Acute Care Hospital outpatient department · Simi Valley, California

See all 8 affiliations

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Christina Hyelim Lee is an anesthesiologist in Walnut Creek, California

Christina Lee practices at Aspen Surgery Center - HOPD in Simi Valley, California.

Christina Lee's NPI, 1639478803, was assigned on March 27, 2011. Christina Lee graduated from University of Pittsburgh School of Medicine in 2011. Christina Lee holds California license A134202.

NPI and contact details
Medicare PAC ID
9133412117
NPI enumeration date
March 27, 2011
NPI status
Active
Accepts Medicare assignment
Yes
Professional email
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Personal email
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Mobile number
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Sex
Female
Estimated age
41
Medical school graduation
2011

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

Christina Hyelim Lee practices in Simi Valley and Walnut Creek

Christina Lee's primary practice is Aspen Surgery Center - HOPD, at 2750 Sycamore Dr, Simi Valley, CA 93065. Christina Lee also practices at Aspen Surgery Center, 133 La Casa Via, Walnut Creek, CA 94598.

  • Aspen Surgery Center - HOPDPrimary
    2750 Sycamore Dr, Simi Valley, CA 93065
  • Aspen Surgery Center
    133 La Casa Via, Walnut Creek, CA 94598 · Contra Costa CountyPhone(925) 210-8400

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

Christina Hyelim Lee is affiliated with 4 sites of care and 4 medical groups

Christina Lee's primary practice is Aspen Surgery Center - HOPD in Simi Valley, California. Christina Lee is also affiliated with Washington Health. The medical group on file is G2 Anesthesia. Dmand AI also links Christina Lee to 3 more medical groups and 2 group practices and clinics, each named with a free account.

See all 8 affiliations for Christina Lee

Source: Dmand AI Affiliation Data

Dmand AI tracks the EHR system at Christina Hyelim Lee's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Christina Lee practices, 4 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Aspen Surgery Center - HOPDAvailable with a free account
+3 more sites and 3 medical groupsAvailable with a free account

Source: Dmand AI Technology Install Data

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Christina Hyelim Lee is one of 6,593 anesthesiologists in California

Anesthesiology is Christina Lee's primary specialty in the NPI Registry, under taxonomy code 207L00000X. Christina Lee is board certified in anesthesiology by the American Board of Anesthesiology. Dmand AI has Christina Lee's licenses on file in 2 states: California and Pennsylvania.

Specialties and state licenses

  • Anesthesiology, CaliforniaPrimaryLicense A134202 · 2015 to 2026 · taxonomy 207L00000X
  • Pennsylvania license2011 to 2015

Anesthesiologists near Christina Lee

Counts of anesthesiologists 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

Christina Hyelim Lee billed Medicare for 148 services in 2024

CMS data shows 148 Medicare services from Christina Lee across 5 procedure codes in 2024, for 226 Medicare patients. Medicare paid $16,832 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 2024148
Medicare patients226
Paid by Medicare$16,832
Procedure codes5

Christina Lee's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Anesthesia
2023: 792024: 14887%

Christina Lee compared with the California median for anesthesiologists, 2024

  • Christina Lee
  • California median
Medicare services
148vs 722.1 times
Medicare patients
226vs 14358% above

Medians across 5,562 anesthesiologists in California with Dmand AI profiles that report each measure.

Christina Lee'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.

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

Christina Hyelim Lee treated 226 Medicare patients in 2024, average age 73

CMS counts 226 Medicare patients who saw Christina Lee in 2024. The largest group is 65 to 74, with 111 patients. 75% of them have high cholesterol, and 56% have high blood pressure. 18% are also on Medicaid. Their average risk score is 1.04, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Christina Lee's median patient age at 56, with 57% women.

Medicare patients, 2024226
Average age73
Average risk score1.04
Also on Medicaid18%

Christina Lee's Medicare patients by age, 2024

Christina Lee's Medicare patients by sex, 2024

  • Women13359%
  • Men9341%

Chronic conditions among Christina Lee's Medicare patients, 2024

  1. High cholesterol75%
  2. High blood pressure56%
  3. Arthritis42%
  4. Diabetes23%
  5. Cancer21%
  6. Osteoporosis21%
  7. Mood disorders20%
  8. Depression19%

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

Christina Lee's patients across all payers

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

Patient panel by age, all payers

Median age 56

Patient panel by sex, all payers

  • Women57%
  • Men42%

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

How Christina Hyelim Lee takes part in Medicare

Christina Lee 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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Christina Hyelim Lee received $120 in industry payments from 2016 to 2025

CMS Open Payments shows 7 general payments to Christina Lee from 6 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Mallinckrodt LLC paid the most, $42.

General payments to Christina Lee by program year, 2016 to 2025

Companies that paid Christina Lee the most, 2016 to 2025

Share is of all general payments to this clinician.

See all payments to Christina Lee

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

Christina Hyelim Lee graduated from University of Pittsburgh School of Medicine

Christina Lee graduated from University of Pittsburgh School of Medicine in 2011.

  1. Medical schoolUniversity of Pittsburgh School of Medicine
  2. Board certified in anesthesiologyAmerican Board of Anesthesiology
  3. Board certified in pediatric anesthesiologyAmerican Board of Anesthesiology

Source: Dmand AI Professional Profile Data

Christina Hyelim Lee accepts plans from 5 insurance carriers

Christina Lee is in network with 5 carriers, including Blue Cross Blue Shield of Massachusetts, Blue Cross Blue Shield of Michigan and HCSC. Medicare plans come from the most carriers, 5. Check the plan with the practice before a visit.

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

Plan types Christina Lee accepts, by number of carriers

  1. Medicare5
  2. PPO4

Source: Dmand AI Insurance Network Data

Sources for Christina Hyelim Lee'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 DataMedicare Physician & Other Practitioners - 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 Christina Hyelim Lee

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

What is Christina Hyelim Lee's NPI number?

Christina Hyelim Lee's NPI number is 1639478803. It was assigned on March 27, 2011, and it is active in the NPI Registry.

What does Christina Hyelim Lee specialize in?

Christina Hyelim Lee is an anesthesiologist in Walnut Creek, California. The primary specialty in the NPI Registry is Anesthesiology Physician (taxonomy code 207L00000X).

Where does Christina Hyelim Lee practice?

Christina Lee practices at 2750 Sycamore Dr, Simi Valley, CA 93065. Christina Lee also practices at 133 La Casa Via, Walnut Creek, CA 94598. Christina Lee's primary practice is Aspen Surgery Center - HOPD in Simi Valley, California. Dmand AI also links Christina Lee to 3 medical groups and 2 group practices and clinics.

What is Christina Hyelim Lee's medical license number?

Christina Lee holds California license A134202, one of the licenses on file in 2 states.

Which states has Christina Hyelim Lee been licensed in?

Dmand AI has state licenses on file for Christina Lee in California (2015 to 2026) and Pennsylvania (2011 to 2015).

Which hospitals is Christina Hyelim Lee affiliated with?

Christina Lee is affiliated with Washington Health.

What medical group is Christina Hyelim Lee part of?

Christina Lee is linked to G2 Anesthesia. Dmand AI links Christina Lee to 3 more medical groups.

Does Christina Hyelim Lee accept Medicare?

Yes. CMS data shows Christina Lee billed Medicare for 148 services in 2024, and Christina Lee accepts Medicare assignment.

How many Medicare patients does Christina Hyelim Lee see?

CMS counts 226 Medicare patients who saw Christina Lee in 2024, with an average age of 73.

Is Christina Hyelim Lee board certified?

Yes. Christina Lee is board certified in anesthesiology by the American Board of Anesthesiology.

Show 5 more questionsShow fewer questions

What services does Christina Hyelim Lee bill to Medicare?

In 2024, Christina Lee's most billed Medicare services were anesthesia (00811), anesthesia (00142) and anesthesia (00731).

Where did Christina Hyelim Lee go to medical school?

Christina Lee graduated from University of Pittsburgh School of Medicine in 2011.

Has Christina Hyelim Lee received payments from drug or device companies?

CMS Open Payments shows $120 in general payments to Christina Lee from 6 companies from 2016 to 2025. The largest total came from Mallinckrodt LLC.

How long has Christina Hyelim Lee been practicing?

Christina Lee graduated from medical school in 2011, 15 years ago.

What insurance does Christina Hyelim Lee accept?

Christina Lee is in network with 5 carriers, including Blue Cross Blue Shield of Massachusetts, Blue Cross Blue Shield of Michigan and HCSC. Medicare plans come from the most carriers, 5. Check the plan with the practice before a visit.

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