Dr. Anna L. Chien, MD
- Medicare services, 2024
- 1,268
- Medicare patients, 2024
- 451
- Part D claims, 2024
- 272
- Publications
- 57
- Clinical trials
- 5
- Practice address
- 10710 Charter Dr, Columbia, MD 21044
- Practice phone
- Call (410) 772-7345
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Howard County Gastrointestinal Diagnostic Center
Columbia, Maryland
Find Dr. Chien's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Anna L. Chien is a dermatologist in Columbia, Maryland
Dr. Chien practices at Howard County Gastrointestinal Diagnostic Center in Columbia, Maryland.
Dr. Chien's NPI, 1538286059, was assigned on March 22, 2007. Dr. Chien graduated from Pritzker School of Medicine in 2005. Dr. Chien holds Maryland license D69392.
- NPI
- 1538286059NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0345396305
- NPI enumeration date
- March 22, 2007
- NPI status
- Active
- Practice phone
- (410) 772-7345
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 47
- Medical school graduation
- 2005
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. Anna L. Chien practices at Howard County Gastrointestinal Diagnostic Center in Columbia, Maryland
Dr. Chien's primary practice is Howard County Gastrointestinal Diagnostic Center, at 10710 Charter Dr, Columbia, MD 21044 in Howard County. The practice phone is (410) 772-7345.
- Howard County Gastrointestinal Diagnostic Center10710 Charter Dr, Columbia, MD 21044 · Howard CountyPhone(410) 772-7345
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Anna L. Chien is affiliated with 2 sites of care and 1 medical group
Dr. Chien's primary practice is Howard County Gastrointestinal Diagnostic Center in Columbia, Maryland. Dr. Chien is also affiliated with The Johns Hopkins Hospital. The medical group on file is Johns Hopkins University.
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. Anna L. Chien's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chien practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Howard County Gastrointestinal Diagnostic Center | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Anna L. Chien is one of 270 dermatologists in Maryland
Dermatology is Dr. Chien's primary specialty in the NPI Registry, under taxonomy code 207N00000X. Dr. Chien is board certified in dermatology by the American Board of Dermatology. Dmand AI has Dr. Chien's licenses on file in 2 states: Maryland and Michigan.
Specialties and state licenses
- Dermatology, MarylandPrimary
- Michigan license
Clinical focus
Dmand AI lists acne, benign or precancerous skin growths, contact dermatitis, itchy rashes, psoriasis, rash, scalp rash and skin cyst among the conditions Dr. Chien treats.
Dermatologists near Dr. Chien
Counts of dermatologists 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 L. Chien billed Medicare for 1,268 services in 2024
CMS data shows 1,268 Medicare services from Dr. Chien across 8 procedure codes in 2024, for 451 Medicare patients. Medicare paid $60,693 for them.
Dr. Chien's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Surgery
- 2023: 7682024: 7236%
- Office and hospital visits
- 2023: 5232024: 5454%
Where Dr. Chien's Medicare services took place, 2024
- In an office1,15191%
- In a facility1179%
Dr. Chien compared with the Maryland median for dermatologists, 2024
- Dr. Chien
- Maryland median
- Medicare services
- 1,268vs 1,74827% below
- Medicare patients
- 451vs 4888% below
- Part D claims
- 123vs 35565% below
Medians across 249 dermatologists in Maryland with Dmand AI profiles that report each measure.
Dr. Chien'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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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Chien and other dermatologists in Maryland.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Anna L. Chien treated 451 Medicare patients in 2024, average age 73
CMS counts 451 Medicare patients who saw Dr. Chien in 2024. The largest group is 65 to 74, with 210 patients. 75% of them have high cholesterol, and 69% have high blood pressure. 12% are also on Medicaid. Their average risk score is 1.11, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Chien's median patient age at 66, with 56% women.
Dr. Chien's Medicare patients by age, 2024
Dr. Chien's Medicare patients by sex, 2024
- Women25857%
- Men19343%
Chronic conditions among Dr. Chien's Medicare patients, 2024
- High cholesterol75%
- High blood pressure69%
- Arthritis52%
- Diabetes25%
- Ischemic heart disease24%
- Osteoporosis22%
- Mood disorders21%
- Anxiety20%
Share of Medicare patients with each condition. A patient can have several.
Dr. Chien's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 66
Patient panel by sex, all payers
- Women56%
- Men44%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Anna L. Chien wrote 272 Medicare Part D claims in 2024
In 2024, Dr. Chien wrote 272 Medicare Part D claims for 95 patients. 71% of them were for generic drugs. CMS names the drug for 123 of them, across 6 drugs with 11 or more claims each, at $143,662 in total drug cost. In 2023, CMS named 96 claims across 5 drugs.
Dr. Chien's Part D claims by kind of drug, 2024
- Generic192 claims71%
- Brand-name80 claims29%
Dr. Chien'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. Chien's Part D claims, 2024
- Antibiotics4%11 of 272 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: 962024: 12328%
Drugs named by CMS: 6 in 2024, 5 in 2023.
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. Anna L. Chien scored 83 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 83 out of 100 for Dr. Chien for performance year 2024, reported as part of a group. CMS counts 307 procedures of removal of skin lesions by Dr. Chien, more than 82% of the clinicians it reports for that procedure.
Dr. Chien's MIPS scores, performance year 2024
- 83of 100Final score
- 73.9of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 70of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Where Dr. Chien ranks in Medicare procedure volume
- Removal of skin lesions
- 82nd percentile307 procedures
- Skin biopsy
- 75th percentile93 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Removal or shaving of skin growth: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)
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Dr. Anna L. Chien has 57 publications on record
Dmand AI links 57 papers to Dr. Chien, published from 2014 to 2025. 2020 was the busiest year, with 8. The most frequent topics are Skin, Skin Aging and Rosacea. Dr. Chien has published most often in J Am Acad Dermatol. Dr. Chien's most frequent co-authors are Luis Angel Garza, MD, Jean Hee Suh, MD and Hilary E. Baldwin, MD.
Dr. Chien's papers by year, 2016 to 2025
Topics Dr. Chien writes about most
- Skin
- Skin Aging
- Rosacea
- Ultraviolet Rays
- Acne Vulgaris
- Skin Neoplasms
- Microbiota
- Skin Pigmentation
Dr. Chien's most frequent co-authors
- Luis Angel Garza, MD5 shared papers
- Jean Hee Suh, MD3 shared papers
- Hilary E. Baldwin, MD2 shared papers
Recent publications by Dr. Chien
Photoaging: Current Concepts on Molecular Mechanisms, Prevention, and Treatment (opens in a new tab)
Am J Clin Dermatol
Dermatol Ther (Heidelb)
See who Dr. Chien researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Chien works with, so you can find a warm path to the right dermatologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Anna L. Chien has worked on 5 clinical trials
Dmand AI links Dr. Chien to 5 clinical trials, 2 of them early phase 1 studies. 2 are still active or recruiting. Conditions studied include Drug-Related Side Effects and Adverse Reactions, Pruritus and Rosacea. Johns Hopkins University sponsors the most, 5.
Conditions in Dr. Chien's trials
- Drug-Related Side Effects and Adverse Reactions
- Pruritus
- Rosacea
- Chemically-Induced Disorders
- Skin Diseases
Recent clinical trials with Dr. Chien
Effect of Topical Sulforaphane on Skin Aging and With Ultraviolet and Visible Light Exposure (opens in a new tab)
Analysis of the Microbiome in Rosacea (opens in a new tab)
Prevention of Drug Rash From Certain Cancer Therapies Using Tretinoin Cream (opens in a new tab)
Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)
Dr. Anna L. Chien received $8,542 in industry payments from 2016 to 2021
CMS Open Payments shows 16 general payments to Dr. Chien from 2 drug and device companies from 2016 to 2021. Consulting fees make up the largest share, 88% of the total. Galderma Laboratories, L.P. paid the most, $7,592.
General payments to Dr. Chien by program year, 2016 to 2021
General payments to Dr. Chien by kind, 2016 to 2021
- Consulting fees$7,52588%
- Travel and lodging$7108%
- Food and beverage$3074%
Companies that paid Dr. Chien the most, 2016 to 2021
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Anna L. Chien has 1 award and honors on record
Dmand AI lists 1 award for Dr. Chien, most recently CMS Stage 1 EHR in 2014.
Awards and honors for Dr. Chien
- 2014
- CMS Stage 1 EHR
Source: Dmand AI Professional Profile Data
Dr. Anna L. Chien graduated from Pritzker School of Medicine
Dr. Chien graduated from Pritzker School of Medicine in 2005.
- Medical school
- Board certified in dermatology
Source: Dmand AI Professional Profile Data
Dr. Anna L. Chien accepts plans from 8 insurance carriers
Dr. Chien is in network with 8 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. HMO plans come from the most carriers, 5. Check the plan with the practice before a visit.
- Aetna
- Elevance
- Blue Cross Blue Shield of Michigan
- United Healthcare
- CareFirst BlueCross BlueShield
- Blue Cross and Blue Shield of Kansas City
- CMS Medicare
- DE State Medicaid
Plan types Dr. Chien accepts, by number of carriers
- HMO5
- Medicare4
- POS4
- PPO4
- EPO3
- Medicaid1
Source: Dmand AI Insurance Network Data
Sources for Dr. Anna L. Chien's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare 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 percentiles | Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Clinical trials and co-investigators | Dmand AI Research LinkageClinicalTrials.gov (National Library of Medicine) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Anna L. Chien
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 L. Chien's NPI number?
Dr. Anna L. Chien's NPI number is 1538286059. It was assigned on March 22, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Anna L. Chien?
Dr. Anna L. Chien is a dermatologist in Columbia, Maryland. The primary specialty in the NPI Registry is Dermatology Physician (taxonomy code 207N00000X).
Where does Dr. Anna L. Chien practice?
Dr. Chien practices at 10710 Charter Dr, Columbia, MD 21044. Dr. Chien's primary practice is Howard County Gastrointestinal Diagnostic Center in Columbia, Maryland.
What is Dr. Anna L. Chien's office phone number?
The practice phone on file for Dr. Chien is (410) 772-7345.
What is Dr. Anna L. Chien's medical license number?
Dr. Chien holds Maryland license D69392, one of the licenses on file in 2 states.
Which states has Dr. Anna L. Chien been licensed in?
Dmand AI has state licenses on file for Dr. Chien in Maryland (2009 to 2026) and Michigan (2005 to 2009).
Which hospitals is Dr. Anna L. Chien affiliated with?
Dr. Chien is affiliated with The Johns Hopkins Hospital.
What medical group is Dr. Anna L. Chien part of?
Dr. Chien is linked to Johns Hopkins University.
Does Dr. Anna L. Chien accept Medicare?
Yes. CMS data shows Dr. Chien billed Medicare for 1,268 services in 2024.
What is Dr. Anna L. Chien's MIPS score?
Dr. Chien's MIPS final score for performance year 2024 is 83 out of 100, reported as part of a group.
Show 10 more questionsShow fewer questions
How many Medicare patients does Dr. Anna L. Chien see?
CMS counts 451 Medicare patients who saw Dr. Chien in 2024, with an average age of 73.
Is Dr. Anna L. Chien board certified?
Yes. Dr. Chien is board certified in dermatology by the American Board of Dermatology.
What services does Dr. Anna L. Chien bill to Medicare?
In 2024, Dr. Chien's most billed Medicare services were surgery: skin and soft tissue (17003), office visit, established patient (99213) and office visit, established patient (99214).
Where did Dr. Anna L. Chien go to medical school?
Dr. Chien graduated from Pritzker School of Medicine in 2005.
What drugs does Dr. Anna L. Chien prescribe most?
In 2024 Medicare Part D data, Dr. Chien's most prescribed drugs by claims were Dupixent Pen, Ketoconazole and Triamcinolone Acetonide.
Has Dr. Anna L. Chien received payments from drug or device companies?
CMS Open Payments shows $8,542 in general payments to Dr. Chien from 2 companies from 2016 to 2021. The largest total came from Galderma Laboratories, L.P.
How long has Dr. Anna L. Chien been practicing?
Dr. Chien graduated from medical school in 2005, 21 years ago.
Does Dr. Anna L. Chien do research?
Dmand AI links 57 publications to Dr. Chien, published from 2014 to 2025. Dr. Chien has worked on 5 clinical trials.
Who does Dr. Anna L. Chien publish with?
Dr. Chien's most frequent co-authors are Luis Angel Garza, MD (5 shared papers), Jean Hee Suh, MD (3 shared papers) and Hilary E. Baldwin, MD (2 shared papers).
What insurance does Dr. Anna L. Chien accept?
Dr. Chien is in network with 8 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. HMO plans come from the most carriers, 5. Check the plan with the practice before a visit.
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