Dr. Anna M. Chen, DO

  • Panorama City, CA
  • Internist
NPI1245475599
Medicare services, 2021
13
Part D claims, 2024
336
Publications
9
Industry payments
$645
Affiliated sites
1
Practice address
11333 Sepulveda Blvd, Mission Hills, CA 91345
Practice phone
Call (818) 365-9531
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Southern California Permanente Medical Group - Mission Hills (11333 Sepulveda Blvd)

Primary care practice · Mission Hills, California

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Dr. Anna M. Chen is an internist in Panorama City, California

Dr. Chen practices at Southern California Permanente Medical Group - Mission Hills (11333 Sepulveda Blvd) in Mission Hills, California.

Dr. Chen's NPI, 1245475599, was assigned on December 15, 2008. Dr. Chen graduated from WesternU College of Osteopathic Medicine of the Pacific in 2007. Dr. Chen holds California license 20A10564.

NPI and contact details
NPI enumeration date
December 15, 2008
NPI status
Active
Practice phone
(818) 365-9531
Professional email
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Personal email
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Mobile number
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Sex
Female
Estimated age
45
Medical school graduation
2007

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

Dr. Anna M. Chen practices in Mission Hills and Panorama City

Dr. Chen's primary practice is Southern California Permanente Medical Group - Mission Hills (11333 Sepulveda Blvd), at 11333 Sepulveda Blvd, Mission Hills, CA 91345. The practice phone is (818) 365-9531. The NPI Registry lists Dr. Chen's practice address as 13652 W Cantara St, Panorama City, CA 91402.

  • Southern California Permanente Medical Group - Mission Hills (11333 Sepulveda Blvd)Primary
    11333 Sepulveda Blvd, Mission Hills, CA 91345Phone(818) 365-9531
  • NPI Registry address
    13652 W Cantara St, Panorama City, CA 91402 · Los Angeles CountyPhone(818) 365-9531

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

Dr. Anna M. Chen is affiliated with 1 site of care and 1 medical group

Dr. Chen's primary practice is Southern California Permanente Medical Group - Mission Hills (11333 Sepulveda Blvd) in Mission Hills, California. The medical group on file is Southern California Permanente Medical Group.

Southern California Permanente Medical Group - Mission Hills (11333 Sepulveda Blvd)Primary care practice · Mission Hills, CaliforniaPrimary
Southern California Permanente Medical GroupPrimary care group, Pasaden, CA

Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dmand AI tracks the EHR system at Dr. Anna M. Chen's practice

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

EHR by site
SiteEHR vendor and product
Southern California Permanente Medical Group - Mission Hills (11333 Sepulveda Blvd)Available with a free account

Source: Dmand AI Technology Install Data

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Dr. Anna M. Chen is one of 16,751 internists in California

Internal medicine is Dr. Chen's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Chen is board certified in internal medicine by the American Board of Internal Medicine. Dr. Chen is licensed in California.

Specialties and state licenses

  • Internal medicine, CaliforniaPrimaryLicense 20A10564 · 2008 to 2026 · taxonomy 207R00000X

Clinical focus

Dmand AI lists arthritis, carpal tunnel syndrome, conjunctivitis, minor injury to a limb and UTI among the conditions Dr. Chen treats.

Internists near Dr. Chen

Counts of internists 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. Anna M. Chen billed Medicare for 13 services in 2021

CMS data shows 13 Medicare services from Dr. Chen across 1 procedure code in 2021, all of them office visits. Medicare paid $1,045 for them. Every service was in an office.

Medicare services, 202113
Paid by Medicare$1,045
Procedure codes1

Dr. Chen's Medicare services by type, 2018 to 2021

  • 2018
  • 2021
Office and hospital visits
2018: 1032021: 1387%
Imaging
2018: 142021: 0100%
Lab and pathology
2018: 532021: 0100%

Dr. Chen compared with the California median for internists, 2021

  • Dr. Chen
  • California median
Medicare services
13vs 36196% below
Part D claims
140vs 42167% below

Medians across 15,815 internists in California with Dmand AI profiles that report each measure.

Dr. Chen'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. Chen

Need commercial claims for Dr. Chen?

Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Chen and other internists in California.

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

Dr. Anna M. Chen's patients have a median age of 62

Across all payers, Dmand AI patient panel data puts Dr. Chen's median patient age at 62, with 62% women.

Dr. Chen's patients across all payers

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

Patient panel by age, all payers

Median age 62

Patient panel by sex, all payers

  • Women62%
  • Men37%

Source: Dmand AI Patient Panel Data

Dr. Anna M. Chen wrote 336 Medicare Part D claims in 2024

In 2024, Dr. Chen wrote 336 Medicare Part D claims for 178 patients. 93% of them were for generic drugs. CMS names the drug for 140 of them, across 7 drugs with 11 or more claims each, at $2,070 in total drug cost. In 2023, CMS named 521 claims across 19 drugs.

Part D claims, 2024336
Drugs named by CMS7
Total drug cost$2,070
Part D patients178

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

  • Generic313 claims93%
  • Brand-name and other23 claims7%

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

  • Opioids4%15 of 336 claims
  • Antibiotics26%86 of 336 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: 5212024: 14073%

Drugs named by CMS: 7 in 2024, 19 in 2023.

See all prescribing by Dr. Chen

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. Anna M. Chen has 9 publications on record

Dmand AI links 9 papers to Dr. Chen, published from 2018 to 2024. 2021 was the busiest year, with 3. The most frequent topics are Magnetic Resonance Imaging, Brain and HIV Infections. Dr. Chen's most frequent co-authors are Ann C. Collier, Ronald J. Ellis, MD, PhD and Benjamin B. Gelman, MD, PhD.

Papers9
Years published2018 to 2024

Dr. Chen's papers by year, 2018 to 2024

Topics Dr. Chen writes about most

  • Magnetic Resonance Imaging
  • Brain
  • HIV Infections
  • Magnetic Resonance Spectroscopy
  • Malaria, Falciparum
  • Neuroimaging
  • Plasmodium falciparum
  • White Matter

Dr. Chen's most frequent co-authors

Recent publications by Dr. Chen

See all 9 publications and co-authors

See who Dr. Chen researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Chen works with, so you can find a warm path to the right internists.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. Anna M. Chen received $645 in industry payments from 2016 to 2024

CMS Open Payments shows 27 general payments to Dr. Chen from 10 drug and device companies from 2016 to 2024. Food and beverage make up the largest share, 100% of the total. Abbvie Inc. paid the most, $133.

General payments to Dr. Chen by program year, 2016 to 2024

Companies that paid Dr. Chen the most, 2016 to 2024

Share is of all general payments to this clinician.

See all payments to Dr. Chen

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

Dr. Anna M. Chen has 2 awards and honors on record

Dmand AI lists 2 awards for Dr. Chen, most recently NCQA DRP in 2015.

Awards and honors for Dr. Chen

  1. 2015
    • NCQA DRP
  2. 2011
    • CMS Stage 1 2012

Source: Dmand AI Professional Profile Data

Dr. Anna M. Chen graduated from WesternU College of Osteopathic Medicine of the Pacific

Dr. Chen graduated from WesternU College of Osteopathic Medicine of the Pacific in 2007. Dr. Chen is a member of AOA.

  1. Medical schoolWesternU College of Osteopathic Medicine of the Pacific
  2. Board certified in internal medicineAmerican Board of Internal Medicine

Source: Dmand AI Professional Profile Data

Dr. Anna M. Chen accepts plans from 10 insurance carriers

Dr. Chen is in network with 10 carriers, including United Healthcare, Elevance and Alliant Health Plans. HMO plans come from the most carriers, 6. Check the plan with the practice before a visit.

  • United Healthcare
  • Elevance
  • Alliant Health Plans
  • Blue Cross Blue Shield of Michigan
  • HCSC
  • Aetna
  • Aspirus Health Plan
  • Blue Cross and Blue Shield of Kansas City
  • +2 more carriersWith a free account

Plan types Dr. Chen accepts, by number of carriers

  1. HMO6
  2. PPO5
  3. POS4
  4. EPO3
  5. Medicare1

Source: Dmand AI Insurance Network Data

Sources for Dr. Anna M. Chen'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 DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)
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)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Awards and committee rolesDmand AI Professional Profile Data
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. Anna M. Chen

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. Anna M. Chen's NPI number?

Dr. Anna M. Chen's NPI number is 1245475599. It was assigned on December 15, 2008, and it is active in the NPI Registry.

What kind of doctor is Dr. Anna M. Chen?

Dr. Anna M. Chen is an internist in Panorama City, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).

Where does Dr. Anna M. Chen practice?

Dr. Chen practices at 11333 Sepulveda Blvd, Mission Hills, CA 91345. Dr. Chen also practices at 13652 W Cantara St, Panorama City, CA 91402. Dr. Chen's primary practice is Southern California Permanente Medical Group - Mission Hills (11333 Sepulveda Blvd) in Mission Hills, California.

What is Dr. Anna M. Chen's office phone number?

The practice phone on file for Dr. Chen is (818) 365-9531.

What is Dr. Anna M. Chen's medical license number?

Dr. Chen holds California license 20A10564.

What medical group is Dr. Anna M. Chen part of?

Dr. Chen is linked to Southern California Permanente Medical Group.

Does Dr. Anna M. Chen accept Medicare?

Yes. CMS data shows Dr. Chen billed Medicare for 13 services in 2021.

Is Dr. Anna M. Chen board certified?

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

What services does Dr. Anna M. Chen bill to Medicare?

In 2021, Dr. Chen's most billed Medicare services were office visit, established patient (99214).

Where did Dr. Anna M. Chen go to medical school?

Dr. Chen graduated from WesternU College of Osteopathic Medicine of the Pacific in 2007.

Show 6 more questionsShow fewer questions

What drugs does Dr. Anna M. Chen prescribe most?

In 2024 Medicare Part D data, Dr. Chen's most prescribed drugs by claims were Lidocaine, Azelastine HCl and Meloxicam.

Has Dr. Anna M. Chen received payments from drug or device companies?

CMS Open Payments shows $645 in general payments to Dr. Chen from 10 companies from 2016 to 2024. The largest total came from Abbvie Inc.

How long has Dr. Anna M. Chen been practicing?

Dr. Chen graduated from medical school in 2007, 19 years ago.

Does Dr. Anna M. Chen do research?

Dmand AI links 9 publications to Dr. Chen, published from 2018 to 2024.

Who does Dr. Anna M. Chen publish with?

Dr. Chen's most frequent co-authors are Ann C. Collier (2 shared papers), Ronald J. Ellis, MD, PhD (2 shared papers) and Benjamin B. Gelman, MD, PhD (2 shared papers).

What insurance does Dr. Anna M. Chen accept?

Dr. Chen is in network with 10 carriers, including United Healthcare, Elevance and Alliant Health Plans. HMO plans come from the most carriers, 6. Check the plan with the practice before a visit.

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