Dr. Sydney Boi Thoi Long, MD
- Medicare services, 2024
- 7,877
- Medicare patients, 2024
- 224
- Part D claims, 2024
- 853
- MIPS score, 2024
- 93
- Industry payments
- $21,882
- Practice address
- 1923 Coffee Rd, Modesto, CA 95355
- Practice phone
- Call (209) 409-8454
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Baz Allergy, Asthma & Sinus Center, Inc.
Modesto, California
Find Dr. Long'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. Sydney Boi Thoi Long is an internist in Modesto, California
Dr. Long practices at Baz Allergy, Asthma & Sinus Center, Inc. in Modesto, California.
Dr. Long's NPI, 1881924918, was assigned on January 13, 2010. Dr. Long graduated from The Johns Hopkins University School of Medicine in 2011. Dr. Long's California license number on file is A143874.
- NPI
- 1881924918NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6608187372
- NPI enumeration date
- January 13, 2010
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (209) 409-8454
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 41
- Medical school graduation
- 2011
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Sydney Boi Thoi Long practices at Baz Allergy, Asthma & Sinus Center, Inc. in Modesto, California
Dr. Long's primary practice is Baz Allergy, Asthma & Sinus Center, Inc., at 1923 Coffee Rd, Modesto, CA 95355 in Stanislaus County. The practice phone is (209) 409-8454.
- Baz Allergy, Asthma & Sinus Center, Inc.1923 Coffee Rd, Modesto, CA 95355 · Stanislaus CountyPhone(209) 409-8454
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Sydney Boi Thoi Long is affiliated with 2 sites of care and 1 medical group
Dr. Long's primary practice is Baz Allergy, Asthma & Sinus Center, Inc. in Modesto, California. The medical group on file is Baz Allergy, Asthma & Sinus Center. Dmand AI also links Dr. Long to 1 more group practice or clinic, named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Sydney Boi Thoi Long's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Long practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Baz Allergy, Asthma & Sinus Center, Inc. | 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. Sydney Boi Thoi Long is one of 16,751 internists in California
Internal medicine is Dr. Long's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Long is board certified in allergy & immunology by the American Board of Allergy and Immunology. Dmand AI has Dr. Long's licenses on file in 2 states: California and Washington.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
- Washington license
Clinical focus
Dmand AI lists acute sinusitis, asthma, chronic nasal allergies and hives among the conditions Dr. Long treats.
Internists near Dr. Long
Counts of internists 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. Sydney Boi Thoi Long billed Medicare for 7,877 services in 2024
CMS data shows 7,877 Medicare services from Dr. Long across 9 procedure codes in 2024, for 224 Medicare patients. Medicare paid $86,379 for them. Every service was in an office.
Dr. Long's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Tests and treatments
- 2023: 4,1632024: 7,49080%
- Office and hospital visits
- 2023: 3022024: 2952%
- Other services
- 2023: 02024: 92
Dr. Long compared with the California median for internists, 2024
- Dr. Long
- California median
- Medicare services
- 7,877vs 36121.8 times
- Medicare patients
- 224vs 15148% above
- Part D claims
- 778vs 42185% above
Medians across 15,815 internists in California with Dmand AI profiles that report each measure.
Dr. Long'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. Long and other internists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Sydney Boi Thoi Long treated 224 Medicare patients in 2024, average age 68
CMS counts 224 Medicare patients who saw Dr. Long in 2024. The largest group is 65 to 74, with 117 patients. 71% of them have high blood pressure, and 67% have high cholesterol. 45% are also on Medicaid. Their average risk score is 0.99, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Long's median patient age at 41, with 65% women.
Dr. Long's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Long's Medicare patients by sex, 2024
- Women13560%
- Men8940%
Chronic conditions among Dr. Long's Medicare patients, 2024
- High blood pressure71%
- High cholesterol67%
- Arthritis47%
- Asthma41%
- Diabetes28%
- Anxiety22%
- Chronic kidney disease20%
- Mood disorders20%
Share of Medicare patients with each condition. A patient can have several.
Dr. Long's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 41
Patient panel by sex, all payers
- Women65%
- Men35%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Sydney Boi Thoi Long wrote 853 Medicare Part D claims in 2024
In 2024, Dr. Long wrote 853 Medicare Part D claims for 181 patients. 72% of them were for generic drugs. CMS names the drug for 778 of them, across 17 drugs with 11 or more claims each, at $366,218 in total drug cost. In 2023, CMS named 983 claims across 21 drugs.
Dr. Long's Part D claims by kind of drug, 2024
- Generic612 claims72%
- Brand-name241 claims28%
Dr. Long'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.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 9832024: 77821%
Drugs named by CMS: 17 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
Dr. Sydney Boi Thoi Long scored 93 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 93 out of 100 for Dr. Long for performance year 2024, reported as part of a group. Dr. Long accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Long's MIPS scores, performance year 2024
- 93of 100Final score
- 88.6of 100Quality
- 96of 100Promoting Interoperability
- 40of 100Improvement Activities
- 75of 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. Sydney Boi Thoi Long received $21,882 in industry payments from 2016 to 2025
CMS Open Payments shows 392 general payments to Dr. Long from 29 drug and device companies from 2016 to 2025. Grants make up the largest share, 62% of the total. AstraZeneca Pharmaceuticals LP paid the most, $14,760.
General payments to Dr. Long by program year, 2016 to 2025
General payments to Dr. Long by kind, 2016 to 2025
- Grants$13,58662%
- Food and beverage$8,17037%
- Education$1271%
Companies that paid Dr. Long the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Sydney Boi Thoi Long graduated from The Johns Hopkins University School of Medicine
Dr. Long graduated from The Johns Hopkins University School of Medicine in 2011.
- Medical school
- Board certified in allergy & immunology
Source: Dmand AI Professional Profile Data
Dr. Sydney Boi Thoi Long accepts plans from 16 insurance carriers
Dr. Long is in network with 16 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 10. Check the plan with the practice before a visit.
- Aetna
- Elevance
- Blue Cross Blue Shield of Michigan
- United Healthcare
- HCSC
- Alliant Health Plans
- Blue Cross Blue Shield of Massachusetts
- Regence Health Plans
- +8 more carriersWith a free account
Plan types Dr. Long accepts, by number of carriers
- PPO10
- Medicare9
- HMO6
- POS6
- EPO4
Source: Dmand AI Insurance Network Data
Sources for Dr. Sydney Boi Thoi Long'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 Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation 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) |
| 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. Sydney Boi Thoi Long
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. Sydney Boi Thoi Long's NPI number?
Dr. Sydney Boi Thoi Long's NPI number is 1881924918. It was assigned on January 13, 2010, and it is active in the NPI Registry.
What kind of doctor is Dr. Sydney Boi Thoi Long?
Dr. Sydney Boi Thoi Long is an internist in Modesto, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Sydney Boi Thoi Long practice?
Dr. Long practices at 1923 Coffee Rd, Modesto, CA 95355. Dr. Long's primary practice is Baz Allergy, Asthma & Sinus Center, Inc. in Modesto, California. Dmand AI also links Dr. Long to 1 group practice or clinic.
What is Dr. Sydney Boi Thoi Long's office phone number?
The practice phone on file for Dr. Long is (209) 409-8454.
What is Dr. Sydney Boi Thoi Long's medical license number?
Dr. Long's California license number on file is A143874, one of the licenses on file in 2 states.
Which states has Dr. Sydney Boi Thoi Long been licensed in?
Dmand AI has state licenses on file for Dr. Long in California (2016 to 2025) and Washington (2014 to 2017).
What medical group is Dr. Sydney Boi Thoi Long part of?
Dr. Long is linked to Baz Allergy, Asthma & Sinus Center.
Does Dr. Sydney Boi Thoi Long accept Medicare?
Yes. CMS data shows Dr. Long billed Medicare for 7,877 services in 2024, and Dr. Long accepts Medicare assignment.
What is Dr. Sydney Boi Thoi Long's MIPS score?
Dr. Long's MIPS final score for performance year 2024 is 93 out of 100, reported as part of a group.
How many Medicare patients does Dr. Sydney Boi Thoi Long see?
CMS counts 224 Medicare patients who saw Dr. Long in 2024, with an average age of 68.
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Is Dr. Sydney Boi Thoi Long board certified?
Yes. Dr. Long is board certified in allergy & immunology by the American Board of Allergy and Immunology.
What services does Dr. Sydney Boi Thoi Long bill to Medicare?
In 2024, Dr. Long's most billed Medicare services were allergy test or treatment (95165), allergy test or treatment (95004) and allergy test or treatment (95117).
Where did Dr. Sydney Boi Thoi Long go to medical school?
Dr. Long graduated from The Johns Hopkins University School of Medicine in 2011.
What drugs does Dr. Sydney Boi Thoi Long prescribe most?
In 2024 Medicare Part D data, Dr. Long's most prescribed drugs by claims were Azelastine HCl, Fluticasone Propionate and Levocetirizine Dihydrochloride.
Has Dr. Sydney Boi Thoi Long received payments from drug or device companies?
CMS Open Payments shows $21,882 in general payments to Dr. Long from 29 companies from 2016 to 2025. The largest total came from AstraZeneca Pharmaceuticals LP.
How long has Dr. Sydney Boi Thoi Long been practicing?
Dr. Long graduated from medical school in 2011, 15 years ago.
What insurance does Dr. Sydney Boi Thoi Long accept?
Dr. Long is in network with 16 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 10. Check the plan with the practice before a visit.
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