Sandi T. Woo, PA-C

  • Castro Valley, CA
  • Physician assistant
NPI1225103161PAC ID3072761436
Medicare services, 2024
934
Medicare patients, 2024
592
Part D claims, 2024
2,428
Hospital affiliations
3
Industry payments
$1,029
Practice address
20126 Stanton Ave, Castro Valley, CA 94546
Practice phone
Call (510) 537-3556
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Cardiovascular Consultants Medical Group, Inc.

Castro Valley, California

See all 11 affiliations

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Sandi T. Woo is a physician assistant in Castro Valley, California

Sandi Woo practices at Cardiovascular Consultants Medical Group, Inc. in Castro Valley, California.

Sandi Woo's NPI, 1225103161, was assigned on November 22, 2006. Sandi Woo graduated from Duke University School of Medicine in 2006. Sandi Woo holds California license PA18589.

NPI and contact details
Medicare PAC ID
3072761436
NPI enumeration date
November 22, 2006
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Practice phone
(510) 537-3556
Professional email
Get email
Personal email
Get email
Mobile number
Get number
Sex
Female
Estimated age
46
Medical school graduation
2006

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

Sandi T. Woo practices at Cardiovascular Consultants Medical Group, Inc. in Castro Valley, California

Sandi Woo's primary practice is Cardiovascular Consultants Medical Group, Inc., at 20126 Stanton Ave, Castro Valley, CA 94546 in Alameda County. The practice phone is (510) 537-3556.

  • Cardiovascular Consultants Medical Group, Inc.
    20126 Stanton Ave, Castro Valley, CA 94546 · Alameda CountyPhone(510) 537-3556

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

Sandi T. Woo is affiliated with 7 sites of care and 4 medical groups

Sandi Woo's primary practice is Cardiovascular Consultants Medical Group, Inc. in Castro Valley, California. Sandi Woo is also affiliated with Sutter Eden Medical Center. The medical group on file is Palo Alto Foundation Medical Group. Dmand AI also links Sandi Woo to 2 more hospitals, 3 group practices and clinics and 3 medical groups, each named with a free account.

See all 11 affiliations for Sandi Woo

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

Dmand AI tracks the EHR system at Sandi T. Woo's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Sandi Woo practices, 6 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Cardiovascular Consultants Medical Group, Inc.Available with a free account
+6 more sites and 3 medical groupsAvailable with a free account

Source: Dmand AI Technology Install Data

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Sandi T. Woo is one of 2,381 physician assistants in California

Medical is Sandi Woo's primary specialty in the NPI Registry, under taxonomy code 363AM0700X. Sandi Woo is board certified in certified physician assistant by the National Commission on Certification of Physician Assistants (NCCPA). Sandi Woo is licensed in California.

Specialties and state licenses

  • Medical physician assistant, CaliforniaPrimaryLicense PA18589 · taxonomy 363AM0700X

Physician assistants near Sandi Woo

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

2,381physician assistants in California
2physician assistants in Castro Valley

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

Sandi T. Woo billed Medicare for 934 services in 2024

CMS data shows 934 Medicare services from Sandi Woo across 10 procedure codes in 2024, for 592 Medicare patients. Medicare paid $83,640 for them.

Medicare services, 2024934
Medicare patients592
Paid by Medicare$83,640
Procedure codes10

Sandi Woo's Medicare services by type, 2024

  1. Office and hospital visits883
  2. Tests and treatments35
  3. Other services16

Where Sandi Woo's Medicare services took place, 2024

  • In an office28030%
  • In a facility65470%

Sandi Woo compared with the California median for physician assistants, 2024

  • Sandi Woo
  • California median
Medicare services
934vs 2783.4 times
Medicare patients
592vs 1165.1 times
Part D claims
2,167vs 4404.9 times

Medians across 1,473 physician assistants in California with Dmand AI profiles that report each measure.

Sandi Woo'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 Sandi Woo

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

Sandi T. Woo treated 592 Medicare patients in 2024, average age 77

CMS counts 592 Medicare patients who saw Sandi Woo in 2024. The largest group is 75 to 84, with 234 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 44% are also on Medicaid. Their average risk score is 2.44, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Sandi Woo's median patient age at 75, with 36% women.

Medicare patients, 2024592
Average age77
Average risk score2.44
Also on Medicaid44%

Sandi Woo's Medicare patients by age, 2024

Sandi Woo's Medicare patients by sex, 2024

  • Women27446%
  • Men31854%

Chronic conditions among Sandi Woo's Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol75%
  3. Heart failure66%
  4. Ischemic heart disease65%
  5. Atrial fibrillation58%
  6. Chronic kidney disease53%
  7. Diabetes45%
  8. Arthritis42%

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

Sandi Woo'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

  • Women36%
  • Men54%

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

Sandi T. Woo wrote 2,428 Medicare Part D claims in 2024

In 2024, Sandi Woo wrote 2,428 Medicare Part D claims for 835 patients. 76% of them were for generic drugs. CMS names the drug for 2,167 of them, across 37 drugs with 11 or more claims each, at $624,339 in total drug cost.

Part D claims, 20242,428
Drugs named by CMS37
Total drug cost$624,339
Part D patients835

Sandi Woo's Part D claims by kind of drug, 2024

  • Generic1,843 claims76%
  • Brand-name585 claims24%

Sandi Woo'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 Sandi Woo's Part D claims, 2024

  • Antibiotics1%18 of 2,428 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

See all prescribing by Sandi Woo

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

Sandi T. Woo offers telehealth to Medicare patients

Sandi Woo accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Sandi Woo as offering telehealth.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Source: Doctors and Clinicians National Downloadable File (CMS)

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Sandi T. Woo received $1,029 in industry payments from 2024 to 2025

CMS Open Payments shows 16 general payments to Sandi Woo from 9 drug and device companies from 2024 to 2025. Food and beverage make up the largest share, 98% of the total. Boehringer Ingelheim Pharmaceuticals, Inc. paid the most, $234.

General payments to Sandi Woo by program year, 2024 to 2025

General payments to Sandi Woo by kind, 2024 to 2025

$1Kin total
  • Food and beverage$1,00998%
  • Education$202%

Companies that paid Sandi Woo the most, 2024 to 2025

Share is of all general payments to this clinician.

See all payments to Sandi Woo

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

Sandi T. Woo graduated from Duke University School of Medicine

Sandi Woo graduated from Duke University School of Medicine in 2006. Sandi Woo is a member of AAPA and ACC.

  1. Medical schoolDuke University School of Medicine
  2. Board certified in certified physician assistantNational Commission on Certification of Physician Assistants (NCCPA)

Source: Dmand AI Professional Profile Data

Sources for Sandi T. Woo'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)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile 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 Sandi T. Woo

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Sandi T. Woo's NPI number?

Sandi T. Woo's NPI number is 1225103161. It was assigned on November 22, 2006, and it is active in the NPI Registry.

What does Sandi T. Woo specialize in?

Sandi T. Woo is a physician assistant in Castro Valley, California. The primary specialty in the NPI Registry is Medical Physician Assistant (taxonomy code 363AM0700X).

Where does Sandi T. Woo practice?

Sandi Woo practices at 20126 Stanton Ave, Castro Valley, CA 94546. Sandi Woo's primary practice is Cardiovascular Consultants Medical Group, Inc. in Castro Valley, California. Dmand AI also links Sandi Woo to 2 hospitals, 3 group practices and clinics and 3 medical groups.

What is Sandi T. Woo's office phone number?

The practice phone on file for Sandi Woo is (510) 537-3556.

What is Sandi T. Woo's medical license number?

Sandi Woo holds California license PA18589.

Which hospitals is Sandi T. Woo affiliated with?

Sandi Woo is affiliated with Sutter Eden Medical Center. Dmand AI links Sandi Woo to 2 more hospitals.

What medical group is Sandi T. Woo part of?

Sandi Woo is linked to Palo Alto Foundation Medical Group. Dmand AI links Sandi Woo to 3 more medical groups.

Does Sandi T. Woo accept Medicare?

Yes. CMS data shows Sandi Woo billed Medicare for 934 services in 2024, and Sandi Woo accepts Medicare assignment.

Does Sandi T. Woo offer telehealth?

Yes. The CMS Doctors and Clinicians file lists Sandi Woo as offering telehealth services.

How many Medicare patients does Sandi T. Woo see?

CMS counts 592 Medicare patients who saw Sandi Woo in 2024, with an average age of 77.

Show 6 more questionsShow fewer questions

Is Sandi T. Woo board certified?

Yes. Sandi Woo is board certified in certified physician assistant by the National Commission on Certification of Physician Assistants (NCCPA).

What services does Sandi T. Woo bill to Medicare?

In 2024, Sandi Woo's most billed Medicare services were hospital inpatient care (99233), office visit, established patient (99214) and hospital inpatient care (99223).

Where did Sandi T. Woo go to medical school?

Sandi Woo graduated from Duke University School of Medicine in 2006.

What drugs does Sandi T. Woo prescribe most?

In 2024 Medicare Part D data, Sandi Woo's most prescribed drugs by claims were Eliquis, Metoprolol Succinate and Atorvastatin Calcium.

Has Sandi T. Woo received payments from drug or device companies?

CMS Open Payments shows $1,029 in general payments to Sandi Woo from 9 companies from 2024 to 2025. The largest total came from Boehringer Ingelheim Pharmaceuticals, Inc.

How long has Sandi T. Woo been practicing?

Sandi Woo graduated from medical school in 2006, 20 years ago.

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