Dr. Bryan D. Gescuk, MD

  • San Mateo, CA
  • Rheumatologist
NPI1295815579PAC ID8224169750
Medicare services, 2024
36,452
Medicare patients, 2024
374
Part D claims, 2024
2,550
Publications
4
MIPS score, 2024
80
Practice address
101 S San Mateo Dr, San Mateo, CA 94401
Practice phone
Call (650) 348-6011
Professional email
Get professional email
Personal email
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Mobile number
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Social profiles

Primary practice

San Mateo Rheumatology Inc.

San Mateo, California

See all 8 affiliations

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Dr. Bryan D. Gescuk is a rheumatologist in San Mateo, California

Dr. Gescuk practices at San Mateo Rheumatology Inc. in San Mateo, California.

Dr. Gescuk's NPI, 1295815579, was assigned on October 17, 2006. Dr. Gescuk graduated from Boston University School Of Medicine in 1996. Dr. Gescuk holds California license A65762.

NPI and contact details
Medicare PAC ID
8224169750
NPI enumeration date
October 17, 2006
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Practice phone
(650) 348-6011
Professional email
Get email
Personal email
Get email
Mobile number
Get number
Sex
Male
Medical school graduation
1996

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Bryan D. Gescuk practices at San Mateo Rheumatology Inc. in San Mateo, California

Dr. Gescuk's primary practice is San Mateo Rheumatology Inc., at 101 S San Mateo Dr, San Mateo, CA 94401 in San Mateo County. The practice phone is (650) 348-6011.

  • San Mateo Rheumatology Inc.
    101 S San Mateo Dr, San Mateo, CA 94401 · San Mateo CountyPhone(650) 348-6011

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

Dr. Bryan D. Gescuk is affiliated with 6 sites of care and 2 medical groups

Dr. Gescuk's primary practice is San Mateo Rheumatology Inc. in San Mateo, California. Dr. Gescuk is also affiliated with San Mateo Medical Center. The medical group on file is San Mateo Medical Center. Dmand AI also links Dr. Gescuk to 3 more hospitals, 1 group practice or clinic and 1 medical group, each named with a free account.

See all 8 affiliations for Dr. Gescuk

Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data

Dmand AI tracks the EHR system at Dr. Bryan D. Gescuk's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Gescuk practices, 5 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
San Mateo Rheumatology Inc.Available with a free account
+5 more sites and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

For health IT teams

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Dr. Bryan D. Gescuk is one of 821 rheumatologists in California

Rheumatology is Dr. Gescuk's primary specialty in the NPI Registry, under taxonomy code 207RR0500X. Dr. Gescuk is board certified in internal medicine by the American Board of Internal Medicine. Dr. Gescuk is licensed in California.

Specialties and state licenses

  • Rheumatology, CaliforniaPrimaryLicense A65762 · 1998 to 2026 · taxonomy 207RR0500X

Clinical focus

Dmand AI lists arteritis, arthritis, fibromyalgia and chronic pain, gout, joint arthropathy, joint cyst, joint pain and lupus among the conditions Dr. Gescuk treats.

Rheumatologists near Dr. Gescuk

Counts of rheumatologists with a Dmand AI profile, by place and practice. Each opens the list.

821rheumatologists in California
6rheumatologists in San Mateo

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. Bryan D. Gescuk billed Medicare for 36,452 services in 2024

CMS data shows 36,452 Medicare services from Dr. Gescuk across 15 procedure codes in 2024, for 374 Medicare patients. Medicare paid $801,492 for them. Every service was in an office.

Medicare services, 202436,452
Medicare patients374
Paid by Medicare$801,492
Procedure codes15

Dr. Gescuk's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Drugs given in the office
2023: 14,3112024: 34,893144%
Office and hospital visits
2023: 4802024: 68042%
Tests and treatments
2023: 2302024: 511122%
Other services
2023: 02024: 266
Surgery
2023: 872024: 10217%

Dr. Gescuk compared with the California median for rheumatologists, 2024

  • Dr. Gescuk
  • California median
Medicare services
36,452vs 90040.5 times
Medicare patients
374vs 21673% above
Part D claims
2,208vs 9622.3 times

Medians across 773 rheumatologists in California with Dmand AI profiles that report each measure.

Dr. Gescuk'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.

See all procedures by Dr. Gescuk

Need commercial claims for Dr. Gescuk?

Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Gescuk and other rheumatologists in California.

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Bryan D. Gescuk treated 374 Medicare patients in 2024, average age 74

CMS counts 374 Medicare patients who saw Dr. Gescuk in 2024. The largest group is 65 to 74, with 179 patients. 75% of them have arthritis, and 72% have high cholesterol. 7% are also on Medicaid. Their average risk score is 1.20, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Gescuk's median patient age at 69, with 68% women.

Medicare patients, 2024374
Average age74
Average risk score1.20
Also on Medicaid7%

Dr. Gescuk's Medicare patients by age, 2024

Dr. Gescuk's Medicare patients by sex, 2024

  • Women25969%
  • Men11531%

Chronic conditions among Dr. Gescuk's Medicare patients, 2024

  1. Arthritis75%
  2. High cholesterol72%
  3. High blood pressure70%
  4. Osteoporosis44%
  5. Diabetes22%
  6. Mood disorders21%
  7. Chronic kidney disease20%
  8. Depression20%

Share of Medicare patients with each condition. A patient can have several.

Dr. Gescuk'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

  • Women68%
  • Men27%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Bryan D. Gescuk wrote 2,550 Medicare Part D claims in 2024

In 2024, Dr. Gescuk wrote 2,550 Medicare Part D claims for 439 patients. 77% of them were for generic drugs. CMS names the drug for 2,208 of them, across 45 drugs with 11 or more claims each, at $3,646,168 in total drug cost. In 2023, CMS named 1,641 claims across 31 drugs.

Part D claims, 20242,550
Drugs named by CMS45
Total drug cost$3.6M
Part D patients439

Dr. Gescuk's Part D claims by kind of drug, 2024

  • Generic1,974 claims77%
  • Brand-name576 claims23%

Dr. Gescuk'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. Gescuk's Part D claims, 2024

  • Opioids16%402 of 2,550 claims
  • Antibiotics1%18 of 2,550 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: 1,6412024: 2,20835%

Drugs named by CMS: 45 in 2024, 31 in 2023.

See all prescribing by Dr. Gescuk

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. Bryan D. Gescuk scored 80 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 80 out of 100 for Dr. Gescuk for performance year 2024, reported as part of a group. Dr. Gescuk accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Gescuk as offering telehealth.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Dr. Gescuk's MIPS scores, performance year 2024

  • 80of 100Final score
  • 89.2of 100Quality
  • 100of 100Promoting Interoperability
  • 40of 100Improvement Activities
  • 43of 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. Bryan D. Gescuk has 4 publications on record

Dmand AI links 4 papers to Dr. Gescuk. The most frequent topics are Avoidance Learning, Electroshock and Morphine. Dr. Gescuk has published most often in Brain Res.

Papers4

Topics Dr. Gescuk writes about most

  • Avoidance Learning
  • Electroshock
  • Morphine
  • Pain
  • Rats, Inbred F344

Recent publications by Dr. Gescuk

See all 4 publications and co-authors

See who Dr. Gescuk researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Gescuk works with, so you can find a warm path to the right rheumatologists.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. Bryan D. Gescuk received $422,688 in industry payments from 2016 to 2025

CMS Open Payments shows 1,611 general payments to Dr. Gescuk from 34 drug and device companies from 2016 to 2025. Speaker and faculty fees make up the largest share, 72% of the total. Abbvie Inc. paid the most, $285,708.

General payments to Dr. Gescuk by program year, 2016 to 2025

General payments to Dr. Gescuk by kind, 2016 to 2025

$422.7Kin total
  • Speaker and faculty fees$302,86372%
  • Travel and lodging$63,29515%
  • Food and beverage$37,4439%
  • Consulting fees$18,7084%
  • Education$3800%

Companies that paid Dr. Gescuk the most, 2016 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Gescuk

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. Bryan D. Gescuk graduated from Boston University School Of Medicine

Dr. Gescuk graduated from Boston University School Of Medicine in 1996.

  1. Medical schoolBoston University School Of Medicine
  2. Board certified in internal medicineAmerican Board of Internal Medicine
  3. Board certified in rheumatologyAmerican Board of Internal Medicine

Source: Dmand AI Professional Profile Data

Dr. Bryan D. Gescuk accepts plans from 14 insurance carriers

Dr. Gescuk is in network with 14 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. Medicare plans come from the most carriers, 8. Check the plan with the practice before a visit.

  • Aetna
  • Blue Cross Blue Shield of Michigan
  • United Healthcare
  • Elevance
  • HCSC
  • Blue Cross Blue Shield of Massachusetts
  • Regence Health Plans
  • Alliant Health Plans
  • +6 more carriersWith a free account

Plan types Dr. Gescuk accepts, by number of carriers

  1. Medicare8
  2. PPO8
  3. HMO6
  4. EPO4
  5. POS4

Source: Dmand AI Insurance Network Data

Sources for Dr. Bryan D. Gescuk's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare 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 percentilesDoctors 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-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Bryan D. Gescuk

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. Bryan D. Gescuk's NPI number?

Dr. Bryan D. Gescuk's NPI number is 1295815579. It was assigned on October 17, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Bryan D. Gescuk?

Dr. Bryan D. Gescuk is a rheumatologist in San Mateo, California. The primary specialty in the NPI Registry is Rheumatology Physician (taxonomy code 207RR0500X).

Where does Dr. Bryan D. Gescuk practice?

Dr. Gescuk practices at 101 S San Mateo Dr, San Mateo, CA 94401. Dr. Gescuk's primary practice is San Mateo Rheumatology Inc. in San Mateo, California. Dmand AI also links Dr. Gescuk to 3 hospitals, 1 group practice or clinic and 1 medical group.

What is Dr. Bryan D. Gescuk's office phone number?

The practice phone on file for Dr. Gescuk is (650) 348-6011.

What is Dr. Bryan D. Gescuk's medical license number?

Dr. Gescuk holds California license A65762.

Which hospitals is Dr. Bryan D. Gescuk affiliated with?

Dr. Gescuk is affiliated with San Mateo Medical Center. Dmand AI links Dr. Gescuk to 3 more hospitals.

What medical group is Dr. Bryan D. Gescuk part of?

Dr. Gescuk is linked to San Mateo Medical Center. Dmand AI links Dr. Gescuk to 1 more medical group.

Does Dr. Bryan D. Gescuk accept Medicare?

Yes. CMS data shows Dr. Gescuk billed Medicare for 36,452 services in 2024, and Dr. Gescuk accepts Medicare assignment.

Does Dr. Bryan D. Gescuk offer telehealth?

Yes. The CMS Doctors and Clinicians file lists Dr. Gescuk as offering telehealth services.

What is Dr. Bryan D. Gescuk's MIPS score?

Dr. Gescuk's MIPS final score for performance year 2024 is 80 out of 100, reported as part of a group.

Show 9 more questionsShow fewer questions

How many Medicare patients does Dr. Bryan D. Gescuk see?

CMS counts 374 Medicare patients who saw Dr. Gescuk in 2024, with an average age of 74.

Is Dr. Bryan D. Gescuk board certified?

Yes. Dr. Gescuk is board certified in internal medicine by the American Board of Internal Medicine.

What services does Dr. Bryan D. Gescuk bill to Medicare?

In 2024, Dr. Gescuk's most billed Medicare services were injected or infused drug (J1602), injected or infused drug (J0129) and injected or infused drug (J0897).

Where did Dr. Bryan D. Gescuk go to medical school?

Dr. Gescuk graduated from Boston University School Of Medicine in 1996.

What drugs does Dr. Bryan D. Gescuk prescribe most?

In 2024 Medicare Part D data, Dr. Gescuk's most prescribed drugs by claims were Prednisone, Methotrexate and Hydroxychloroquine Sulfate.

Has Dr. Bryan D. Gescuk received payments from drug or device companies?

CMS Open Payments shows $422,688 in general payments to Dr. Gescuk from 34 companies from 2016 to 2025. The largest total came from Abbvie Inc.

How long has Dr. Bryan D. Gescuk been practicing?

Dr. Gescuk graduated from medical school in 1996, 30 years ago.

Does Dr. Bryan D. Gescuk do research?

Dmand AI links 4 publications to Dr. Gescuk.

What insurance does Dr. Bryan D. Gescuk accept?

Dr. Gescuk is in network with 14 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. Medicare plans come from the most carriers, 8. Check the plan with the practice before a visit.

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