Dr. Charles Regis Langelier, MD, PhD
- Medicare services, 2024
- 84
- Medicare patients, 2024
- 50
- Part D claims, 2018
- 14
- Publications
- 125
- MIPS score, 2024
- 100
- Practice address
- 505 Parnassus Ave, Box 0296, San Francisco, CA 94143
- Practice phone
- Call (415) 353-2733
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Langelier'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. Charles Regis Langelier is an infectious disease specialist in San Francisco, California
Dr. Langelier practices at UCSF Helen Diller Medical Center at Parnassus Heights in San Francisco, California, part of University of California Health.
Dr. Langelier's NPI, 1275822793, was assigned on April 5, 2011. Dr. Langelier graduated from Spencer Fox Eccles School of Medicine in 2011. Dr. Langelier holds California license A124890.
- NPI
- 1275822793NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7012200686
- NPI enumeration date
- April 5, 2011
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (415) 353-2733
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 41
- Medical school graduation
- 2011
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Charles Regis Langelier practices at UCSF Helen Diller Medical Center at Parnassus Heights in San Francisco, California
Dr. Langelier's primary practice is UCSF Helen Diller Medical Center at Parnassus Heights, at 505 Parnassus Ave, Box 0296, San Francisco, CA 94143 in San Francisco County. The practice phone is (415) 353-2733.
- UCSF Helen Diller Medical Center at Parnassus Heights505 Parnassus Ave, Box 0296, San Francisco, CA 94143 · San Francisco CountyPhone(415) 353-2733
Source: Dmand AI Affiliation Data
Dr. Charles Regis Langelier is affiliated with 3 sites of care and 3 medical groups
Dr. Langelier's primary practice is UCSF Helen Diller Medical Center at Parnassus Heights in San Francisco, California, part of University of California Health. The medical group on file is UCSF Pediatrics. Dmand AI also links Dr. Langelier to 2 more group practices and clinics and 2 medical groups, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Charles Regis Langelier's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Langelier practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| UCSF Helen Diller Medical Center at Parnassus Heights | Available with a free account |
| +2 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Charles Regis Langelier is one of 1,054 infectious disease specialists in California
Infectious disease is Dr. Langelier's primary specialty in the NPI Registry, under taxonomy code 207RI0200X. Dr. Langelier is licensed in California.
Specialties and state licenses
- Infectious disease, CaliforniaPrimary
Infectious disease specialists near Dr. Langelier
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. Charles Regis Langelier billed Medicare for 84 services in 2024
CMS data shows 84 Medicare services from Dr. Langelier across 3 procedure codes in 2024, for 50 Medicare patients. Medicare paid $7,694 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Langelier's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 282024: 67139%
- Other services
- 2023: 02024: 17
Dr. Langelier compared with the California median for infectious disease specialists, 2024
- Dr. Langelier
- California median
- Medicare services
- 84vs 42980% below
- Medicare patients
- 50vs 18072% below
- Part D claims
- 14vs 11988% below
Medians across 930 infectious disease specialists in California with Dmand AI profiles that report each measure.
Dr. Langelier'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. Langelier and other infectious disease specialists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Charles Regis Langelier treated 50 Medicare patients in 2024, average age 70
CMS counts 50 Medicare patients who saw Dr. Langelier in 2024. The largest group is 65 to 74, with 22 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 56% are also on Medicaid. Their average risk score is 3.46, 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. Langelier's median patient age at 58, with 46% women.
Dr. Langelier's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Langelier's Medicare patients by sex, 2024
- Women1938%
- Men3162%
Chronic conditions among Dr. Langelier's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Depression62%
- Mood disorders62%
- Chronic kidney disease58%
- Atrial fibrillation54%
- Anxiety50%
- Diabetes50%
Share of Medicare patients with each condition. A patient can have several.
Dr. Langelier's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 58
Patient panel by sex, all payers
- Women46%
- Men51%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Charles Regis Langelier wrote 14 Medicare Part D claims in 2018
In 2018, Dr. Langelier wrote 14 Medicare Part D claims. Every claim was for a generic drug. They cover 1 drug, with $235 in total drug cost. In 2017, CMS named 49 claims across 3 drugs.
Dr. Langelier's most prescribed drugs by claims, 2018
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, 2017 to 2018
- 2017
- 2018
- Claims for drugs CMS names
- 2017: 492018: 1471%
Drugs named by CMS: 1 in 2018, 3 in 2017.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
Dr. Charles Regis Langelier scored 100 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 100 out of 100 for Dr. Langelier for performance year 2024, reported as part of a group. Dr. Langelier accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Langelier as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Dr. Langelier's MIPS scores, performance year 2024
- 100of 100Final score
- 95of 100Quality
- 40of 100Improvement Activities
- 81of 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. Charles Regis Langelier has 125 publications on record
Dmand AI links 125 papers to Dr. Langelier, published from 2004 to 2025. 2024 was the busiest year, with 23. The most frequent topics are COVID-19, SARS-CoV-2 and Metagenomics. Dr. Langelier has published most often in medRxiv. Dr. Langelier's most frequent co-authors are Carolyn Suzanne Calfee, MD, Carolyn Marie Hendrickson, MD and Peter Michael Mourani, MD.
Dr. Langelier's papers by year, 2016 to 2025
Topics Dr. Langelier writes about most
- COVID-19
- SARS-CoV-2
- Metagenomics
- High-Throughput Nucleotide Sequencing
- Respiratory Tract Infections
- Critical Illness
- Lung
- Microbiota
Dr. Langelier's most frequent co-authors
- Carolyn Suzanne Calfee, MD40 shared papers
- Carolyn Marie Hendrickson, MD16 shared papers
- Peter Michael Mourani, MD14 shared papers
Recent publications by Dr. Langelier
See who Dr. Langelier researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Langelier 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. Charles Regis Langelier received $241 in industry payments in 2016
CMS Open Payments shows 1 general payment to Dr. Langelier from 1 drug or device company in 2016. Food and beverage make up the largest share, 100% of the total. Illumina, Inc. paid the most, $241.
Companies that paid Dr. Langelier the most, 2016 to 2016
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Charles Regis Langelier graduated from Spencer Fox Eccles School of Medicine
Dr. Langelier graduated from Spencer Fox Eccles School of Medicine in 2011.
- Medical school
Source: Dmand AI Professional Profile Data
Dr. Charles Regis Langelier accepts plans from 9 insurance carriers
Dr. Langelier is in network with 9 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Elevance. Medicare plans come from the most carriers, 5. Check the plan with the practice before a visit.
- Aetna
- Blue Cross Blue Shield of Michigan
- Elevance
- HCSC
- Regence Health Plans
- United Healthcare
- Blue Cross and Blue Shield of Kansas City
- CMS Medicare
- +1 more carriersWith a free account
Plan types Dr. Langelier accepts, by number of carriers
- Medicare5
- PPO5
- HMO4
- POS4
- EPO3
Source: Dmand AI Insurance Network Data
Sources for Dr. Charles Regis Langelier'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) |
| 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 |
| 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. Charles Regis Langelier
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. Charles Regis Langelier's NPI number?
Dr. Charles Regis Langelier's NPI number is 1275822793. It was assigned on April 5, 2011, and it is active in the NPI Registry.
What kind of doctor is Dr. Charles Regis Langelier?
Dr. Charles Regis Langelier is an infectious disease specialist in San Francisco, California. The primary specialty in the NPI Registry is Infectious Disease Physician (taxonomy code 207RI0200X).
Where does Dr. Charles Regis Langelier practice?
Dr. Langelier practices at 505 Parnassus Ave, Box 0296, San Francisco, CA 94143. Dr. Langelier's primary practice is UCSF Helen Diller Medical Center at Parnassus Heights in San Francisco, California, part of University of California Health. Dmand AI also links Dr. Langelier to 2 group practices and clinics and 2 medical groups.
What is Dr. Charles Regis Langelier's office phone number?
The practice phone on file for Dr. Langelier is (415) 353-2733.
What is Dr. Charles Regis Langelier's medical license number?
Dr. Langelier holds California license A124890.
Which hospitals is Dr. Charles Regis Langelier affiliated with?
Dr. Langelier practices at UCSF Helen Diller Medical Center at Parnassus Heights in San Francisco, California.
What medical group is Dr. Charles Regis Langelier part of?
Dr. Langelier is linked to UCSF Pediatrics. Dmand AI links Dr. Langelier to 2 more medical groups.
Does Dr. Charles Regis Langelier accept Medicare?
Yes. CMS data shows Dr. Langelier billed Medicare for 84 services in 2024, and Dr. Langelier accepts Medicare assignment.
Does Dr. Charles Regis Langelier offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Langelier as offering telehealth services.
What is Dr. Charles Regis Langelier's MIPS score?
Dr. Langelier's MIPS final score for performance year 2024 is 100 out of 100, reported as part of a group.
Show 9 more questionsShow fewer questions
How many Medicare patients does Dr. Charles Regis Langelier see?
CMS counts 50 Medicare patients who saw Dr. Langelier in 2024, with an average age of 70.
What services does Dr. Charles Regis Langelier bill to Medicare?
In 2024, Dr. Langelier's most billed Medicare services were hospital inpatient care (99233), hospital inpatient care (99222) and medicare service (G0316).
Where did Dr. Charles Regis Langelier go to medical school?
Dr. Langelier graduated from Spencer Fox Eccles School of Medicine in 2011.
What drugs does Dr. Charles Regis Langelier prescribe most?
In 2018 Medicare Part D data, Dr. Langelier's most prescribed drugs by claims were Amoxicillin.
Has Dr. Charles Regis Langelier received payments from drug or device companies?
CMS Open Payments shows $241 in general payments to Dr. Langelier from 1 company from 2016 to 2016. The largest total came from Illumina, Inc.
How long has Dr. Charles Regis Langelier been practicing?
Dr. Langelier graduated from medical school in 2011, 15 years ago.
Does Dr. Charles Regis Langelier do research?
Dmand AI links 125 publications to Dr. Langelier, published from 2004 to 2025.
Who does Dr. Charles Regis Langelier publish with?
Dr. Langelier's most frequent co-authors are Carolyn Suzanne Calfee, MD (40 shared papers), Carolyn Marie Hendrickson, MD (16 shared papers) and Peter Michael Mourani, MD (14 shared papers).
What insurance does Dr. Charles Regis Langelier accept?
Dr. Langelier is in network with 9 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Elevance. Medicare plans come from the most carriers, 5. Check the plan with the practice before a visit.
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