ArmBlisterScleroderma, Localized
Dr. Mary H. Lien, MD
NPI1417016544PAC ID9537263421
- Medicare services, 2017
- 13
- Part D claims, 2024
- 1,916
- Publications
- 20
- Hospital affiliations
- 1
- Industry payments
- $458
- Practice address
- 10800 Magnolia Avenue, Riverside, CA 92505
- Practice phone
- Call (951) 353-2000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Lien's professional email, personal email and mobile number
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Dr. Mary H. Lien is a dermatologist in Riverside, California
Dr. Lien practices at Riverside Medical Center in Riverside, California, part of Kaiser Permanente.
Dr. Lien's NPI, 1417016544, was assigned on December 6, 2006. Dr. Lien graduated from Duke University School Of Medicine in 1992. Dr. Lien's California license number on file is A55676.
NPI and contact details
- NPI
- 1417016544NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9537263421
- NPI enumeration date
- December 6, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (951) 353-2000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 60
- Medical school graduation
- 1992
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Mary H. Lien practices at Riverside Medical Center in Riverside, California
Dr. Lien's primary practice is Riverside Medical Center, at 10800 Magnolia Avenue, Riverside, CA 92505 in Riverside County. The practice phone is (951) 353-2000.
- Riverside Medical Center10800 Magnolia Avenue, Riverside, CA 92505 · Riverside CountyPhone(951) 353-2000
Source: Dmand AI Affiliation Data
Dr. Mary H. Lien is affiliated with 1 site of care and 1 medical group
Dr. Lien's primary practice is Riverside Medical Center in Riverside, California, part of Kaiser Permanente. The medical group on file is Southern California Permanente Medical Group.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Mary H. Lien's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Lien practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Riverside Medical Center | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
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Dmand AI maps EHR vendors, IT decision makers and buying committees across Kaiser Permanente and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Mary H. Lien is one of 1,910 dermatologists in California
Dermatology is Dr. Lien's primary specialty in the NPI Registry, under taxonomy code 207N00000X. Dr. Lien is board certified in dermatology by the American Board of Dermatology. Dmand AI has Dr. Lien's licenses on file in 4 states: California, Michigan, Florida and Pennsylvania.
Specialties and state licenses
- Dermatology, CaliforniaPrimary
- Michigan license
- Florida license
- Pennsylvania license
Clinical focus
Dmand AI lists benign or precancerous skin growths among the conditions Dr. Lien treats.
Dermatologists near Dr. Lien
Counts of dermatologists with a Dmand AI profile, by place and practice. Each opens the list.
1,910dermatologists in California13dermatologists in Riverside11dermatologists at Riverside Medical Center
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Mary H. Lien billed Medicare for 13 services in 2017
CMS data shows 13 Medicare services from Dr. Lien across 1 procedure code in 2017, all of them office visits. Medicare paid $472 for them. Every service was in an office.
Medicare services, 201713
Paid by Medicare$472
Procedure codes1
Dr. Lien compared with the California median for dermatologists, 2017
- Dr. Lien
- California median
- Medicare services
- 13vs 1,75099% below
- Part D claims
- 1,816vs 3674.9 times
Medians across 1,831 dermatologists in California with Dmand AI profiles that report each measure.
Dr. Lien's most billed Medicare procedure codes, 2017
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Lien?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Lien and other dermatologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Mary H. Lien's patients have a median age of 48
Across all payers, Dmand AI patient panel data puts Dr. Lien's median patient age at 48, with 68% women.
Dr. Lien's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 48
Patient panel by sex, all payers
- Women68%
- Men31%
Source: Dmand AI Patient Panel Data
Dr. Mary H. Lien wrote 1,916 Medicare Part D claims in 2024
In 2024, Dr. Lien wrote 1,916 Medicare Part D claims for 701 patients. 89% of them were for generic drugs. CMS names the drug for 1,816 of them, across 24 drugs with 11 or more claims each, at $310,871 in total drug cost. In 2023, CMS named 1,744 claims across 21 drugs.
Part D claims, 20241,916
Drugs named by CMS24
Total drug cost$310,871
Part D patients701
Dr. Lien's Part D claims by kind of drug, 2024
- Generic1,713 claims89%
- Brand-name203 claims11%
Dr. Lien'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. Lien's Part D claims, 2024
- Antibiotics2%35 of 1,916 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: 1,7442024: 1,8164%
Drugs named by CMS: 24 in 2024, 21 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
How Dr. Mary H. Lien takes part in Medicare
Dr. Lien accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Removal of skin lesions: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Mary H. Lien has 20 publications on record
Dmand AI links 20 papers to Dr. Lien in 2018. The most frequent topics are Skin Neoplasms, Diagnosis, Differential and Immunohistochemistry. Dr. Lien has published most often in J Drugs Dermatol. Dr. Lien's most frequent co-authors are Jane L. Messina, MD, Brooke Taylor Baldwin, MD and Erica Emerson Smithberger, MD.
Papers20
Topics Dr. Lien writes about most
- Skin Neoplasms
- Diagnosis, Differential
- Immunohistochemistry
- Melanoma
- Biomarkers, Tumor
- Carcinoma, Merkel Cell
- Lymphoma, T-Cell, Cutaneous
- Skin Diseases
Dr. Lien's most frequent co-authors
- Jane L. Messina, MD4 shared papers
- Brooke Taylor Baldwin, MD3 shared papers
- Erica Emerson Smithberger, MD3 shared papers
Recent publications by Dr. Lien
G Ital Dermatol Venereol
Biomarkers, TumorComparative Genomic HybridizationDermoscopy
Curr Probl Cancer
Carcinoma, Merkel CellPatient Care TeamSkin Neoplasms
AlcoholismSkinSkin Diseases
J Drugs Dermatol
Diagnosis, DifferentialErythemaHyperpigmentation
See who Dr. Lien researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Lien 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. Mary H. Lien received $458 in industry payments from 2016 to 2024
CMS Open Payments shows 9 general payments to Dr. Lien from 7 drug and device companies from 2016 to 2024. Food and beverage make up the largest share, 100% of the total. Pfizer Inc. paid the most, $116.
General payments to Dr. Lien by program year, 2016 to 2024
Companies that paid Dr. Lien the most, 2016 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Mary H. Lien has 1 award and honors on record
Dmand AI lists 1 award for Dr. Lien, most recently Regional Top Doctor in 2014.
Awards and honors for Dr. Lien
- 2014
- Regional Top Doctor
Source: Dmand AI Professional Profile Data
Dr. Mary H. Lien graduated from Duke University School Of Medicine
Dr. Lien graduated from Duke University School Of Medicine in 1992.
- Medical school
- Board certified in dermatology
Source: Dmand AI Professional Profile Data
Dr. Mary H. Lien accepts plans from 2 insurance carriers
Dr. Lien is in network with 2 carriers, including Kaiser Permanente and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
- Kaiser Permanente
- CMS Medicare
Plan types Dr. Lien accepts, by number of carriers
- EPO1
- HMO1
- Medicare1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Mary H. Lien'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 | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand 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 Data |
| 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 | Doctors and Clinicians National Downloadable File (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 |
| 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. Mary H. Lien
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. Mary H. Lien's NPI number?
Dr. Mary H. Lien's NPI number is 1417016544. It was assigned on December 6, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Mary H. Lien?
Dr. Mary H. Lien is a dermatologist in Riverside, California. The primary specialty in the NPI Registry is Dermatology Physician (taxonomy code 207N00000X).
Where does Dr. Mary H. Lien practice?
Dr. Lien practices at 10800 Magnolia Avenue, Riverside, CA 92505. Dr. Lien's primary practice is Riverside Medical Center in Riverside, California, part of Kaiser Permanente.
What is Dr. Mary H. Lien's office phone number?
The practice phone on file for Dr. Lien is (951) 353-2000.
What is Dr. Mary H. Lien's medical license number?
Dr. Lien's California license number on file is A55676, one of the licenses on file in 4 states.
Which states has Dr. Mary H. Lien been licensed in?
Dmand AI has state licenses on file for Dr. Lien in California (1996 to 2025), Michigan (1995 to 2027), Florida (1996 to 2026) and Pennsylvania (1992 to 1993).
Which hospitals is Dr. Mary H. Lien affiliated with?
Dr. Lien practices at Riverside Medical Center in Riverside, California.
What medical group is Dr. Mary H. Lien part of?
Dr. Lien is linked to Southern California Permanente Medical Group.
Does Dr. Mary H. Lien accept Medicare?
Yes. CMS data shows Dr. Lien billed Medicare for 13 services in 2017, and Dr. Lien accepts Medicare assignment.
Is Dr. Mary H. Lien board certified?
Yes. Dr. Lien is board certified in dermatology by the American Board of Dermatology.
Show 8 more questionsShow fewer questions
What services does Dr. Mary H. Lien bill to Medicare?
In 2017, Dr. Lien's most billed Medicare services were office visit, established patient (99213).
Where did Dr. Mary H. Lien go to medical school?
Dr. Lien graduated from Duke University School Of Medicine in 1992.
What drugs does Dr. Mary H. Lien prescribe most?
In 2024 Medicare Part D data, Dr. Lien's most prescribed drugs by claims were Fluorouracil, Calcipotriene and Triamcinolone Acetonide.
Has Dr. Mary H. Lien received payments from drug or device companies?
CMS Open Payments shows $458 in general payments to Dr. Lien from 7 companies from 2016 to 2024. The largest total came from Pfizer Inc.
How long has Dr. Mary H. Lien been practicing?
Dr. Lien graduated from medical school in 1992, 34 years ago.
Does Dr. Mary H. Lien do research?
Dmand AI links 20 publications to Dr. Lien.
Who does Dr. Mary H. Lien publish with?
Dr. Lien's most frequent co-authors are Jane L. Messina, MD (4 shared papers), Brooke Taylor Baldwin, MD (3 shared papers) and Erica Emerson Smithberger, MD (3 shared papers).
What insurance does Dr. Mary H. Lien accept?
Dr. Lien is in network with 2 carriers, including Kaiser Permanente and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
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