Dr. Elvin Hsing Geng, MD
- Medicare services, 2021
- 24
- Part D claims, 2022
- 23
- Publications
- 244
- MIPS score, 2024
- 84
- Hospital affiliations
- 1
- Practice address
- One Barnes-Jewish Hospital Plaza, Saint Louis, MO 63110
- Practice phone
- Call (314) 747-3000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Geng's professional email, personal email and mobile number
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Dr. Elvin Hsing Geng is an infectious disease specialist in Saint Louis, Missouri
Dr. Geng practices at Barnes-Jewish Hospital in Saint Louis, Missouri, part of BJC Health.
Dr. Geng's NPI, 1497924930, was assigned on February 28, 2008. Dr. Geng graduated from Columbia University College of Physicians and Surgeons in 2002. Dr. Geng holds Missouri license 2020032982.
- NPI
- 1497924930NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8123190188
- NPI enumeration date
- February 28, 2008
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (314) 747-3000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 50
- Medical school graduation
- 2002
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Elvin Hsing Geng practices at 2 locations in Saint Louis, Missouri
Dr. Geng's primary practice is Barnes-Jewish Hospital, at One Barnes-Jewish Hospital Plaza, Saint Louis, MO 63110 in St. Louis City. The practice phone is (314) 747-3000. Dr. Geng also practices at Barnes-Jewish Hospital, 1 Barnes Jewish Hospital Plz, Saint Louis, MO 63110.
- Barnes-Jewish HospitalPrimaryOne Barnes-Jewish Hospital Plaza, Saint Louis, MO 63110 · St. Louis CityPhone(314) 747-3000
- Barnes-Jewish Hospital1 Barnes Jewish Hospital Plz, Saint Louis, MO 63110 · Saint Louis CityPhone(314) 747-3000
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; and Dmand AI Practice Data
Dr. Elvin Hsing Geng is affiliated with 1 site of care and 1 medical group
Dr. Geng's primary practice is Barnes-Jewish Hospital in Saint Louis, Missouri, part of BJC Health. The medical group on file is WashU Medicine Psychiatry.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Elvin Hsing Geng's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Geng practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Barnes-Jewish Hospital | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across BJC Health and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Elvin Hsing Geng is one of 179 infectious disease specialists in Missouri
Infectious disease is Dr. Geng's primary specialty in the NPI Registry, under taxonomy code 207RI0200X. Dr. Geng is licensed in Missouri.
Specialties and state licenses
- Infectious disease, MissouriPrimary
Infectious disease specialists near Dr. Geng
Counts of infectious disease specialists 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. Elvin Hsing Geng billed Medicare for 24 services in 2021
CMS data shows 24 Medicare services from Dr. Geng across 2 procedure codes in 2021. Medicare paid $3,139 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Geng's Medicare services by type, 2018 to 2021
- 2018
- 2021
- Office and hospital visits
- 2018: 342021: 2429%
Dr. Geng compared with the Missouri median for infectious disease specialists, 2021
- Dr. Geng
- Missouri median
- Medicare services
- 24vs 27691% below
- Part D claims
- 23vs 20389% below
Medians across 176 infectious disease specialists in Missouri with Dmand AI profiles that report each measure.
Dr. Geng'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.
Need commercial claims for Dr. Geng?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Geng and other infectious disease specialists in Missouri.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Elvin Hsing Geng's patients have a median age of 49
Across all payers, Dmand AI patient panel data puts Dr. Geng's median patient age at 49, with 67% women.
Dr. Geng's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 49
Patient panel by sex, all payers
- Women67%
- Men33%
Source: Dmand AI Patient Panel Data
Dr. Elvin Hsing Geng wrote 23 Medicare Part D claims in 2022
In 2022, Dr. Geng wrote 23 Medicare Part D claims. They cover 2 drugs, with $1,889 in total drug cost. In 2021, CMS named 19 claims across 1 drug.
Dr. Geng's most prescribed drugs by claims, 2022
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2021 to 2022
- 2021
- 2022
- Claims for drugs CMS names
- 2021: 192022: 2321%
Drugs named by CMS: 2 in 2022, 1 in 2021.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
Dr. Elvin Hsing Geng scored 84 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 84 out of 100 for Dr. Geng for performance year 2024, reported as part of a group. Dr. Geng accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Geng's MIPS scores, performance year 2024
- 84of 100Final score
- 71.6of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 76of 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. Elvin Hsing Geng has 244 publications on record
Dmand AI links 244 papers to Dr. Geng, published from 2013 to 2025. 2022 was the busiest year, with 28. The most frequent topics are HIV Infections, Anti-HIV Agents and Zambia. Dr. Geng has published most often in PLoS Med. Dr. Geng's most frequent co-authors are Aaloke Mody, MD, Michael J. Mugavero and Joseph J. Eron, MD.
Dr. Geng's papers by year, 2016 to 2025
Topics Dr. Geng writes about most
- HIV Infections
- Anti-HIV Agents
- Zambia
- COVID-19
- Kenya
- Lost to Follow-Up
- Viral Load
- Anti-Retroviral Agents
Dr. Geng's most frequent co-authors
- Aaloke Mody, MD50 shared papers
- Michael J. Mugavero26 shared papers
- Joseph J. Eron, MD23 shared papers
Recent publications by Dr. Geng
BMC Glob Public Health
Alcohol Clin Exp Res (Hoboken)
See who Dr. Geng researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Geng works with, so you can find a warm path to the right infectious disease specialists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Elvin Hsing Geng received $14,665 in industry payments in 2025
CMS Open Payments shows 8 general payments to Dr. Geng from 1 drug or device company in 2025. Speaker and faculty fees make up the largest share, 79% of the total. Merck Sharp & Dohme Corporation paid the most, $14,665.
General payments to Dr. Geng by kind, 2025 to 2025
- Speaker and faculty fees$11,60079%
- Consulting fees$2,61018%
- Travel and lodging$3422%
- Food and beverage$1121%
Companies that paid Dr. Geng the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Elvin Hsing Geng graduated from Columbia University College of Physicians and Surgeons
Dr. Geng graduated from Columbia University College of Physicians and Surgeons in 2002.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Elvin Hsing Geng'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 Affiliation DataDmand AI Practice 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) |
| 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 |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile 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. Elvin Hsing Geng
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. Elvin Hsing Geng's NPI number?
Dr. Elvin Hsing Geng's NPI number is 1497924930. It was assigned on February 28, 2008, and it is active in the NPI Registry.
What kind of doctor is Dr. Elvin Hsing Geng?
Dr. Elvin Hsing Geng is an infectious disease specialist in Saint Louis, Missouri. The primary specialty in the NPI Registry is Infectious Disease Physician (taxonomy code 207RI0200X).
Where does Dr. Elvin Hsing Geng practice?
Dr. Geng practices at One Barnes-Jewish Hospital Plaza, Saint Louis, MO 63110. Dr. Geng also practices at 1 Barnes Jewish Hospital Plz, Saint Louis, MO 63110. Dr. Geng's primary practice is Barnes-Jewish Hospital in Saint Louis, Missouri, part of BJC Health.
What is Dr. Elvin Hsing Geng's office phone number?
The practice phone on file for Dr. Geng is (314) 747-3000.
What is Dr. Elvin Hsing Geng's medical license number?
Dr. Geng holds Missouri license 2020032982.
Which hospitals is Dr. Elvin Hsing Geng affiliated with?
Dr. Geng practices at Barnes-Jewish Hospital in Saint Louis, Missouri.
What medical group is Dr. Elvin Hsing Geng part of?
Dr. Geng is linked to WashU Medicine Psychiatry.
Does Dr. Elvin Hsing Geng accept Medicare?
Yes. CMS data shows Dr. Geng billed Medicare for 24 services in 2021, and Dr. Geng accepts Medicare assignment.
What is Dr. Elvin Hsing Geng's MIPS score?
Dr. Geng's MIPS final score for performance year 2024 is 84 out of 100, reported as part of a group.
What services does Dr. Elvin Hsing Geng bill to Medicare?
In 2021, Dr. Geng's most billed Medicare services were hospital inpatient care (99222) and hospital inpatient care (99223).
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Where did Dr. Elvin Hsing Geng go to medical school?
Dr. Geng graduated from Columbia University College of Physicians and Surgeons in 2002.
What drugs does Dr. Elvin Hsing Geng prescribe most?
In 2022 Medicare Part D data, Dr. Geng's most prescribed drugs by claims were Cefepime-Dextrose and Cefepime HCl.
Has Dr. Elvin Hsing Geng received payments from drug or device companies?
CMS Open Payments shows $14,665 in general payments to Dr. Geng from 1 company from 2025 to 2025. The largest total came from Merck Sharp & Dohme Corporation.
How long has Dr. Elvin Hsing Geng been practicing?
Dr. Geng graduated from medical school in 2002, 24 years ago.
Does Dr. Elvin Hsing Geng do research?
Dmand AI links 244 publications to Dr. Geng, published from 2013 to 2025.
Who does Dr. Elvin Hsing Geng publish with?
Dr. Geng's most frequent co-authors are Aaloke Mody, MD (50 shared papers), Michael J. Mugavero (26 shared papers) and Joseph J. Eron, MD (23 shared papers).
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