Dr. Joslyn Vo, DO
- Part D claims, 2024
- 415
- Publications
- 3
- Hospital affiliations
- 1
- Industry payments
- $217
- Medical group
- 1
- Practice address
- 9961 Sierra Ave, Fontana, CA 92335
- Practice phone
- Call (909) 427-5000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Vo's professional email, personal email and mobile number
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Dr. Joslyn Vo is a pulmonologist in Fontana, California
Dr. Vo practices at Fontana Medical Center in Fontana, California, part of Kaiser Permanente.
Dr. Vo's NPI, 1508398793, was assigned on March 28, 2017. Dr. Vo graduated from WesternU College of Osteopathic Medicine of the Pacific in 2017. Dr. Vo holds California license 20A16932.
- NPI
- 1508398793NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0244635365
- NPI enumeration date
- March 28, 2017
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (909) 427-5000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 35
- Medical school graduation
- 2017
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Joslyn Vo practices at Fontana Medical Center in Fontana, California
Dr. Vo's primary practice is Fontana Medical Center, at 9961 Sierra Ave, Fontana, CA 92335 in San Bernardino County. The practice phone is (909) 427-5000.
- Fontana Medical Center9961 Sierra Ave, Fontana, CA 92335 · San Bernardino CountyPhone(909) 427-5000
Source: Dmand AI Affiliation Data
Dr. Joslyn Vo is affiliated with 2 sites of care and 1 medical group
Dr. Vo's primary practice is Fontana Medical Center in Fontana, California, part of Kaiser Permanente. The medical group on file is Southern California Permanente Medical Group. Dmand AI also links Dr. Vo to 1 more group practice or clinic, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Joslyn Vo's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Vo practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Fontana Medical 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. Joslyn Vo is one of 1,339 pulmonologists in California
Pulmonary disease is Dr. Vo's primary specialty in the NPI Registry, under taxonomy code 207RP1001X. Dr. Vo is board certified in critical care medicine by the American Board of Internal Medicine. Dr. Vo is licensed in California.
Specialties and state licenses
- Pulmonary disease, CaliforniaPrimary
Pulmonologists near Dr. Vo
Counts of pulmonologists 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. Joslyn Vo's patients have a median age of 66
Across all payers, Dmand AI patient panel data puts Dr. Vo's median patient age at 66, with 55% women.
Dr. Vo'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
- Women55%
- Men45%
Source: Dmand AI Patient Panel Data
Dr. Joslyn Vo wrote 415 Medicare Part D claims in 2024
In 2024, Dr. Vo wrote 415 Medicare Part D claims for 121 patients. 64% of them were for generic drugs. CMS names the drug for 300 of them, across 9 drugs with 11 or more claims each, at $43,672 in total drug cost. In 2020, CMS named 198 claims across 12 drugs.
Dr. Vo's Part D claims by kind of drug, 2024
- Generic264 claims64%
- Brand-name and other151 claims36%
Dr. Vo'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. Vo's Part D claims, 2024
- Antibiotics12%50 of 415 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, 2020 to 2024
- 2020
- 2024
- Claims for drugs CMS names
- 2020: 1982024: 30052%
Drugs named by CMS: 9 in 2024, 12 in 2020.
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. Joslyn Vo takes part in Medicare
Dr. Vo accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Joslyn Vo has 3 publications on record
Dmand AI links 3 papers to Dr. Vo, published from 2017 to 2022. Dr. Vo's most frequent co-authors are Davin Anthony Agustines, DO, Nancy F. Crum-Cianflone, MD and Dafne Tatiana Moretta, MD.
Dr. Vo's papers by year, 2017 to 2022
Dr. Vo's most frequent co-authors
- Davin Anthony Agustines, DO1 shared paper
- Nancy F. Crum-Cianflone, MD1 shared paper
- Dafne Tatiana Moretta, MD1 shared paper
Recent publications by Dr. Vo
See who Dr. Vo researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Vo works with, so you can find a warm path to the right pulmonologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Joslyn Vo received $217 in industry payments from 2022 to 2024
CMS Open Payments shows 4 general payments to Dr. Vo from 3 drug and device companies from 2022 to 2024. Education make up the largest share, 79% of the total. Astellas Pharma US Inc paid the most, $172.
General payments to Dr. Vo by program year, 2022 to 2024
General payments to Dr. Vo by kind, 2022 to 2024
- Education$17279%
- Food and beverage$4521%
Companies that paid Dr. Vo the most, 2022 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Joslyn Vo graduated from WesternU College of Osteopathic Medicine of the Pacific
Dr. Vo graduated from WesternU College of Osteopathic Medicine of the Pacific in 2017. Dr. Vo is a member of Sigma Sigma Phi Honor Society.
- Medical school
- Board certified in critical care medicine
- Board certified in internal medicine
- Board certified in pulmonary disease
Source: Dmand AI Professional Profile Data
Dr. Joslyn Vo accepts plans from 3 insurance carriers
Dr. Vo is in network with 3 carriers, including Highmark, Kaiser Permanente and CMS Medicare. HMO plans come from the most carriers, 2. Check the plan with the practice before a visit.
- Highmark
- Kaiser Permanente
- CMS Medicare
Plan types Dr. Vo accepts, by number of carriers
- HMO2
- POS2
- EPO1
- Medicare1
- PPO1
Source: Dmand AI Insurance Network Data
Sources for Dr. Joslyn Vo'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 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) |
| 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. Joslyn Vo
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. Joslyn Vo's NPI number?
Dr. Joslyn Vo's NPI number is 1508398793. It was assigned on March 28, 2017, and it is active in the NPI Registry.
What kind of doctor is Dr. Joslyn Vo?
Dr. Joslyn Vo is a pulmonologist in Fontana, California. The primary specialty in the NPI Registry is Pulmonary Disease Physician (taxonomy code 207RP1001X).
Where does Dr. Joslyn Vo practice?
Dr. Vo practices at 9961 Sierra Ave, Fontana, CA 92335. Dr. Vo's primary practice is Fontana Medical Center in Fontana, California, part of Kaiser Permanente. Dmand AI also links Dr. Vo to 1 group practice or clinic.
What is Dr. Joslyn Vo's office phone number?
The practice phone on file for Dr. Vo is (909) 427-5000.
What is Dr. Joslyn Vo's medical license number?
Dr. Vo holds California license 20A16932.
Which hospitals is Dr. Joslyn Vo affiliated with?
Dr. Vo practices at Fontana Medical Center in Fontana, California.
What medical group is Dr. Joslyn Vo part of?
Dr. Vo is linked to Southern California Permanente Medical Group.
Does Dr. Joslyn Vo accept Medicare?
Yes. CMS lists Dr. Vo as accepting Medicare assignment.
Is Dr. Joslyn Vo board certified?
Yes. Dr. Vo is board certified in critical care medicine by the American Board of Internal Medicine.
Where did Dr. Joslyn Vo go to medical school?
Dr. Vo graduated from WesternU College of Osteopathic Medicine of the Pacific in 2017.
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What drugs does Dr. Joslyn Vo prescribe most?
In 2024 Medicare Part D data, Dr. Vo's most prescribed drugs by claims were Albuterol Sulfate Hfa, Breyna and Prednisone.
Has Dr. Joslyn Vo received payments from drug or device companies?
CMS Open Payments shows $217 in general payments to Dr. Vo from 3 companies from 2022 to 2024. The largest total came from Astellas Pharma US Inc.
How long has Dr. Joslyn Vo been practicing?
Dr. Vo graduated from medical school in 2017, 9 years ago.
Does Dr. Joslyn Vo do research?
Dmand AI links 3 publications to Dr. Vo, published from 2017 to 2022.
Who does Dr. Joslyn Vo publish with?
Dr. Vo's most frequent co-authors are Davin Anthony Agustines, DO (1 shared paper), Nancy F. Crum-Cianflone, MD (1 shared paper) and Dafne Tatiana Moretta, MD (1 shared paper).
What insurance does Dr. Joslyn Vo accept?
Dr. Vo is in network with 3 carriers, including Highmark, Kaiser Permanente and CMS Medicare. HMO plans come from the most carriers, 2. Check the plan with the practice before a visit.
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