Dr. Mavis Song Peng, MD
- Medicare services, 2024
- 1,557
- Medicare patients, 2024
- 377
- Part D claims, 2024
- 1,714
- Publications
- 2
- MIPS score, 2024
- 88
- Practice address
- 101 City Drive South, Orange, CA 92868
- Practice phone
- Call (714) 456-7890
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Peng's professional email, personal email and mobile number
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Dr. Mavis Song Peng is a hospitalist in Orange, California
Dr. Peng practices at UCI Health - Orange in Orange, California, part of UC Irvine.
Dr. Peng's NPI, 1922637966, was assigned on April 2, 2020. Dr. Peng graduated from VCU School of Medicine in 2020. Dr. Peng holds California license A185893.
- NPI
- 1922637966NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9436518636
- NPI enumeration date
- April 2, 2020
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (714) 456-7890
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 32
- Medical school graduation
- 2020
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Mavis Song Peng practices at UCI Health - Orange in Orange, California
Dr. Peng's primary practice is UCI Health - Orange, at 101 City Drive South, Orange, CA 92868 in Orange County. The practice phone is (714) 456-7890.
- UCI Health - Orange101 City Drive South, Orange, CA 92868 · Orange CountyPhone(714) 456-7890
Source: Dmand AI Affiliation Data
Dr. Mavis Song Peng is affiliated with 1 site of care and 1 medical group
Dr. Peng's primary practice is UCI Health - Orange in Orange, California, part of UC Irvine. The medical group on file is UCI Health.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Mavis Song Peng's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Peng practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| UCI Health - Orange | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Mavis Song Peng is one of 3,186 hospitalists in California
Hospitalist is Dr. Peng's primary specialty in the NPI Registry, under taxonomy code 208M00000X. Dr. Peng is board certified in internal medicine by the American Board of Internal Medicine. Dr. Peng is licensed in California.
Specialties and state licenses
- Hospitalist, CaliforniaPrimary
Clinical focus
Dmand AI lists kidney failure among the conditions Dr. Peng treats.
Hospitalists near Dr. Peng
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. Mavis Song Peng billed Medicare for 1,557 services in 2024
CMS data shows 1,557 Medicare services from Dr. Peng across 11 procedure codes in 2024, for 377 Medicare patients. Medicare paid $129,175 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Peng's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 3772024: 1,103193%
- Other services
- 2023: 652024: 454598%
Dr. Peng compared with the California median for hospitalists, 2024
- Dr. Peng
- California median
- Medicare services
- 1,557vs 4303.6 times
- Medicare patients
- 377vs 20188% above
- Part D claims
- 1,211vs 6917.6 times
Medians across 2,991 hospitalists in California with Dmand AI profiles that report each measure.
Dr. Peng'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
Dr. Mavis Song Peng treated 377 Medicare patients in 2024, average age 81
CMS counts 377 Medicare patients who saw Dr. Peng in 2024. The largest group is 75 to 84, with 149 patients. 75% of them have arthritis, and 75% have high blood pressure. 44% are also on Medicaid. Their average risk score is 2.85, 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. Peng's median patient age at 69, with 50% women.
Dr. Peng's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Peng's Medicare patients by sex, 2024
- Women21657%
- Men16143%
Chronic conditions among Dr. Peng's Medicare patients, 2024
- Arthritis75%
- High blood pressure75%
- High cholesterol75%
- Mood disorders59%
- Depression54%
- Ischemic heart disease52%
- Anxiety51%
- Diabetes46%
Share of Medicare patients with each condition. A patient can have several.
Dr. Peng's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 69
Patient panel by sex, all payers
- Women50%
- Men50%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Mavis Song Peng wrote 1,714 Medicare Part D claims in 2024
In 2024, Dr. Peng wrote 1,714 Medicare Part D claims for 183 patients. 81% of them were for generic drugs. CMS names the drug for 1,211 of them, across 43 drugs with 11 or more claims each, at $80,842 in total drug cost. In 2023, CMS named 299 claims across 15 drugs.
Dr. Peng's Part D claims by kind of drug, 2024
- Generic1,390 claims81%
- Brand-name and other324 claims19%
Dr. Peng'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. Peng's Part D claims, 2024
- Opioids5%88 of 1,714 claims
- Antibiotics3%56 of 1,714 claims
- Antipsychotics, patients 65 and over1%13 of 1,714 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: 2992024: 1,211305%
Drugs named by CMS: 43 in 2024, 15 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. Mavis Song Peng 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. Peng for performance year 2024, reported as part of a group. Dr. Peng accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Peng'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. Mavis Song Peng has 2 publications on record
Dmand AI links 2 papers to Dr. Peng, published from 2014 to 2016. Dr. Peng's most frequent co-author is Rhonda Renee Voskuhl, MD.
Dr. Peng's most frequent co-authors
Recent publications by Dr. Peng
See who Dr. Peng researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Peng works with, so you can find a warm path to the right hospitalists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Mavis Song Peng graduated from VCU School of Medicine
Dr. Peng graduated from VCU School of Medicine in 2020.
- Medical school
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Dr. Mavis Song Peng accepts plans from 5 insurance carriers
Dr. Peng is in network with 5 carriers, including Blue Cross Blue Shield of Michigan, Blue Cross Blue Shield of Massachusetts and HCSC. Medicare plans come from the most carriers, 5. Check the plan with the practice before a visit.
- Blue Cross Blue Shield of Michigan
- Blue Cross Blue Shield of Massachusetts
- HCSC
- Regence Health Plans
- CMS Medicare
Plan types Dr. Peng accepts, by number of carriers
- Medicare5
- PPO4
- HMO1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Mavis Song Peng'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 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 | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (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 |
| 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. Mavis Song Peng
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. Mavis Song Peng's NPI number?
Dr. Mavis Song Peng's NPI number is 1922637966. It was assigned on April 2, 2020, and it is active in the NPI Registry.
What kind of doctor is Dr. Mavis Song Peng?
Dr. Mavis Song Peng is a hospitalist in Orange, California. The primary specialty in the NPI Registry is Hospitalist Physician (taxonomy code 208M00000X).
Where does Dr. Mavis Song Peng practice?
Dr. Peng practices at 101 City Drive South, Orange, CA 92868. Dr. Peng's primary practice is UCI Health - Orange in Orange, California, part of UC Irvine.
What is Dr. Mavis Song Peng's office phone number?
The practice phone on file for Dr. Peng is (714) 456-7890.
What is Dr. Mavis Song Peng's medical license number?
Dr. Peng holds California license A185893.
Which hospitals is Dr. Mavis Song Peng affiliated with?
Dr. Peng practices at UCI Health - Orange in Orange, California.
What medical group is Dr. Mavis Song Peng part of?
Dr. Peng is linked to UCI Health.
Does Dr. Mavis Song Peng accept Medicare?
Yes. CMS data shows Dr. Peng billed Medicare for 1,557 services in 2024, and Dr. Peng accepts Medicare assignment.
What is Dr. Mavis Song Peng's MIPS score?
Dr. Peng'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. Mavis Song Peng see?
CMS counts 377 Medicare patients who saw Dr. Peng in 2024, with an average age of 81.
Show 8 more questionsShow fewer questions
Is Dr. Mavis Song Peng board certified?
Yes. Dr. Peng is board certified in internal medicine by the American Board of Internal Medicine.
What services does Dr. Mavis Song Peng bill to Medicare?
In 2024, Dr. Peng's most billed Medicare services were hospital inpatient care (99233), medicare service (G0316) and nursing facility care (99309).
Where did Dr. Mavis Song Peng go to medical school?
Dr. Peng graduated from VCU School of Medicine in 2020.
What drugs does Dr. Mavis Song Peng prescribe most?
In 2024 Medicare Part D data, Dr. Peng's most prescribed drugs by claims were Eliquis, Atorvastatin Calcium and Oxycodone HCl.
How long has Dr. Mavis Song Peng been practicing?
Dr. Peng graduated from medical school in 2020, 6 years ago.
Does Dr. Mavis Song Peng do research?
Dmand AI links 2 publications to Dr. Peng, published from 2014 to 2016.
Who does Dr. Mavis Song Peng publish with?
Dr. Peng's most frequent co-authors are Rhonda Renee Voskuhl, MD (1 shared paper).
What insurance does Dr. Mavis Song Peng accept?
Dr. Peng is in network with 5 carriers, including Blue Cross Blue Shield of Michigan, Blue Cross Blue Shield of Massachusetts and HCSC. Medicare plans come from the most carriers, 5. Check the plan with the practice before a visit.
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