Dr. Yao Yao Guan Pollock, MD
- Medicare services, 2024
- 2,284
- Medicare patients, 2024
- 246
- Part D claims, 2024
- 1,002
- Hospital affiliations
- 5
- Industry payments
- $2,326
- Practice address
- 1165 Montgomery Dr, Santa Rosa, CA 95405
- Practice phone
- Call (707) 525-5300
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Pollock'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. Yao Yao Guan Pollock is a hematologist and oncologist in Santa Rosa, California
Dr. Pollock practices at Providence Santa Rosa Memorial Hospital in Santa Rosa, California, part of Providence Health & Services.
Dr. Pollock's NPI, 1154692549, was assigned on January 18, 2012. Dr. Pollock graduated from The Johns Hopkins University School of Medicine in 2013. Dr. Pollock holds California license A147607.
- NPI
- 1154692549NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2961798269
- NPI enumeration date
- January 18, 2012
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (707) 525-5300
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 39
- Medical school graduation
- 2013
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Yao Yao Guan Pollock practices at Providence Santa Rosa Memorial Hospital in Santa Rosa, California
Dr. Pollock's primary practice is Providence Santa Rosa Memorial Hospital, at 1165 Montgomery Dr, Santa Rosa, CA 95405 in Sonoma County. The practice phone is (707) 525-5300.
- Providence Santa Rosa Memorial Hospital1165 Montgomery Dr, Santa Rosa, CA 95405 · Sonoma CountyPhone(707) 525-5300
Source: Dmand AI Affiliation Data
Dr. Yao Yao Guan Pollock is affiliated with 9 sites of care and 4 medical groups
Dr. Pollock's primary practice is Providence Santa Rosa Memorial Hospital in Santa Rosa, California, part of Providence Health & Services. Dr. Pollock is also affiliated with Sutter Santa Rosa Regional Hospital. The medical group on file is Palo Alto Foundation Medical Group. Dmand AI also links Dr. Pollock to 3 more hospitals, 3 group practices and clinics, 3 medical groups and 1 home health agency, 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. Yao Yao Guan Pollock's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Pollock practices, 9 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Providence Santa Rosa Memorial Hospital | Available with a free account |
| +8 more sites and 3 medical groups | 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 Providence Health & Services and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Yao Yao Guan Pollock is one of 1,502 hematologists and oncologists in California
Hematology and oncology is Dr. Pollock's primary specialty in the NPI Registry, under taxonomy code 207RH0003X. Dr. Pollock is board certified in internal medicine by the American Board of Internal Medicine. Dmand AI has Dr. Pollock's licenses on file in 2 states: California and Michigan.
Specialties and state licenses
- Hematology and oncology, CaliforniaPrimary
- Michigan license
Clinical focus
Dmand AI lists chronic anemia, chronic embolism thrombosis, chronic leukemia, colorectal cancer, lung cancer, lymphoma, multiple myeloma and neutropenia among the conditions Dr. Pollock treats.
Hematologists and oncologists near Dr. Pollock
Counts of hematologists and oncologists 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. Yao Yao Guan Pollock billed Medicare for 2,284 services in 2024
CMS data shows 2,284 Medicare services from Dr. Pollock across 8 procedure codes in 2024, for 246 Medicare patients. Medicare paid $174,666 for them.
Dr. Pollock's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Other services
- 2023: 1192024: 1,177889%
- Office and hospital visits
- 2023: 1,0792024: 1,1073%
Where Dr. Pollock's Medicare services took place, 2024
- In an office2,23198%
- In a facility532%
Dr. Pollock compared with the California median for hematologists and oncologists, 2024
- Dr. Pollock
- California median
- Medicare services
- 2,284vs 9322.5 times
- Medicare patients
- 246vs 2259% above
- Part D claims
- 724vs 39484% above
Medians across 1,367 hematologists and oncologists in California with Dmand AI profiles that report each measure.
Dr. Pollock'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. Pollock and other hematologists and oncologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Yao Yao Guan Pollock treated 246 Medicare patients in 2024, average age 77
CMS counts 246 Medicare patients who saw Dr. Pollock in 2024. The largest group is 75 to 84, with 99 patients. 75% of them have high blood pressure, and 71% have high cholesterol. 28% are also on Medicaid. Their average risk score is 2.02, 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. Pollock's median patient age at 75, with 34% women.
Dr. Pollock's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Pollock's Medicare patients by sex, 2024
- Women7832%
- Men16868%
Chronic conditions among Dr. Pollock's Medicare patients, 2024
- High blood pressure75%
- High cholesterol71%
- Cancer70%
- Arthritis42%
- Chronic kidney disease35%
- Osteoporosis32%
- Atrial fibrillation28%
- Diabetes28%
Share of Medicare patients with each condition. A patient can have several.
Dr. Pollock's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 75
Patient panel by sex, all payers
- Women34%
- Men65%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Yao Yao Guan Pollock wrote 1,002 Medicare Part D claims in 2024
In 2024, Dr. Pollock wrote 1,002 Medicare Part D claims for 189 patients. 82% of them were for generic drugs. CMS names the drug for 724 of them, across 25 drugs with 11 or more claims each, at $1,108,866 in total drug cost. In 2023, CMS named 789 claims across 31 drugs.
Dr. Pollock's Part D claims by kind of drug, 2024
- Generic819 claims82%
- Brand-name183 claims18%
Dr. Pollock'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. Pollock's Part D claims, 2024
- Opioids7%74 of 1,002 claims
- Antibiotics3%26 of 1,002 claims
- Antipsychotics, patients 65 and over3%26 of 1,002 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: 7892024: 7248%
Drugs named by CMS: 25 in 2024, 31 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. Yao Yao Guan Pollock offers telehealth to Medicare patients
Dr. Pollock accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Pollock as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Yao Yao Guan Pollock received $2,326 in industry payments from 2020 to 2025
CMS Open Payments shows 104 general payments to Dr. Pollock from 29 drug and device companies from 2020 to 2025. Food and beverage make up the largest share, 98% of the total. Daiichi Sankyo Inc. paid the most, $311.
General payments to Dr. Pollock by program year, 2020 to 2025
General payments to Dr. Pollock by kind, 2020 to 2025
- Food and beverage$2,26898%
- Education$582%
Companies that paid Dr. Pollock the most, 2020 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Yao Yao Guan Pollock graduated from The Johns Hopkins University School of Medicine
Dr. Pollock graduated from The Johns Hopkins University School of Medicine in 2013.
- Medical school
- Board certified in internal medicine
- Board certified in medical oncology
Source: Dmand AI Professional Profile Data
Dr. Yao Yao Guan Pollock accepts plans from 12 insurance carriers
Dr. Pollock is in network with 12 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. PPO 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
- Alliant Health Plans
- Blue Cross and Blue Shield of Kansas City
- +4 more carriersWith a free account
Plan types Dr. Pollock accepts, by number of carriers
- PPO8
- HMO6
- Medicare6
- EPO4
- POS3
Source: Dmand AI Insurance Network Data
Sources for Dr. Yao Yao Guan Pollock'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)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) |
| 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. Yao Yao Guan Pollock
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. Yao Yao Guan Pollock's NPI number?
Dr. Yao Yao Guan Pollock's NPI number is 1154692549. It was assigned on January 18, 2012, and it is active in the NPI Registry.
What kind of doctor is Dr. Yao Yao Guan Pollock?
Dr. Yao Yao Guan Pollock is a hematologist and oncologist in Santa Rosa, California. The primary specialty in the NPI Registry is Hematology & Oncology Physician (taxonomy code 207RH0003X).
Where does Dr. Yao Yao Guan Pollock practice?
Dr. Pollock practices at 1165 Montgomery Dr, Santa Rosa, CA 95405. Dr. Pollock's primary practice is Providence Santa Rosa Memorial Hospital in Santa Rosa, California, part of Providence Health & Services. Dmand AI also links Dr. Pollock to 3 hospitals, 3 group practices and clinics, 3 medical groups and 1 home health agency.
What is Dr. Yao Yao Guan Pollock's office phone number?
The practice phone on file for Dr. Pollock is (707) 525-5300.
What is Dr. Yao Yao Guan Pollock's medical license number?
Dr. Pollock holds California license A147607, one of the licenses on file in 2 states.
Which states has Dr. Yao Yao Guan Pollock been licensed in?
Dmand AI has state licenses on file for Dr. Pollock in California (2017 to 2026) and Michigan (2016 to 2020).
Which hospitals is Dr. Yao Yao Guan Pollock affiliated with?
Dr. Pollock practices at Providence Santa Rosa Memorial Hospital in Santa Rosa, California. Dr. Pollock is also affiliated with Sutter Santa Rosa Regional Hospital. Dmand AI links Dr. Pollock to 3 more hospitals.
What medical group is Dr. Yao Yao Guan Pollock part of?
Dr. Pollock is linked to Palo Alto Foundation Medical Group. Dmand AI links Dr. Pollock to 3 more medical groups.
Does Dr. Yao Yao Guan Pollock accept Medicare?
Yes. CMS data shows Dr. Pollock billed Medicare for 2,284 services in 2024, and Dr. Pollock accepts Medicare assignment.
Does Dr. Yao Yao Guan Pollock offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Pollock as offering telehealth services.
Show 8 more questionsShow fewer questions
How many Medicare patients does Dr. Yao Yao Guan Pollock see?
CMS counts 246 Medicare patients who saw Dr. Pollock in 2024, with an average age of 77.
Is Dr. Yao Yao Guan Pollock board certified?
Yes. Dr. Pollock is board certified in internal medicine by the American Board of Internal Medicine.
What services does Dr. Yao Yao Guan Pollock bill to Medicare?
In 2024, Dr. Pollock's most billed Medicare services were medicare service (G2211), office visit, established patient (99215) and medicare service (G2212).
Where did Dr. Yao Yao Guan Pollock go to medical school?
Dr. Pollock graduated from The Johns Hopkins University School of Medicine in 2013.
What drugs does Dr. Yao Yao Guan Pollock prescribe most?
In 2024 Medicare Part D data, Dr. Pollock's most prescribed drugs by claims were Prednisone, Prochlorperazine Maleate and Potassium Chloride.
Has Dr. Yao Yao Guan Pollock received payments from drug or device companies?
CMS Open Payments shows $2,326 in general payments to Dr. Pollock from 29 companies from 2020 to 2025. The largest total came from Daiichi Sankyo Inc.
How long has Dr. Yao Yao Guan Pollock been practicing?
Dr. Pollock graduated from medical school in 2013, 13 years ago.
What insurance does Dr. Yao Yao Guan Pollock accept?
Dr. Pollock is in network with 12 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. PPO plans come from the most carriers, 8. Check the plan with the practice before a visit.
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