Active NPI
Aditi Choudhry, M.D.
- Hematology & Oncology Physician
- Walnut Creek, CA
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Hematology & Oncology Physician
- License
- A115151
- Practice address
- 177 La Casa Via Ste 390
Walnut Creek, CA 94598-6101 - Phone
- (925) 692-5610
- NPI assigned
- Jun 10, 2008
- Sex
- Female
- Sole proprietor
- No
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Hematology & Oncology Physician | 207RH0003X | A115151 | CA | Primary |
Addresses
Primary practice location
177 La Casa Via Ste 390
Walnut Creek, CA 94598-6101
Mailing address
1450 Treat Blvd Ste 300
Walnut Creek, CA 94597-2168
Phone (925) 952-2828
Other identifiers 1
| Identifier | Type | State | Issuer |
|---|---|---|---|
| P01149802 | Other | CA | RAILROAD MEDICARE |
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in CA
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: Yes
Enrollment records 1
Care Compare profile
Medicare Care Compare- Specialty
- Hematology/Oncology
- Education
- Other, 2005
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Telehealth
- Offers telehealth services
- Group practices
Practice addresses (Care Compare)
110 Lynch Creek Way
Suite a
Petaluma, CA 94954-2337
Phone (707) 763-0600
2700 Grant St
Suite 200
Concord, CA 94520-2270
Phone (925) 674-0500
Hospital & facility affiliations
- John Muir Medical Center - Concord Campus
- John Muir Medical Center - Walnut Creek Campus
- Providence Santa Rosa Memorial Hospital
- Petaluma Valley Hospital
- Sonoma Valley Hospital
Merit-based Incentive Payment System (MIPS)
- Final score
- 90.32 of 100
- Quality
- 89.54
- Promoting interoperability
- 100
- Improvement activities
- 40
- Cost
- 74.34
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| A115151 | CA | MD | Internal Medicine Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| John Muir Trauma Physicians Billing Service | Current | Accepting new patients | |
| John Muir Physician Network | Current | Accepting new patients | |
| Providence Medical Foundation | Current | Accepting new patients | |
| Providence Medical Foundation | Current | Accepting new patients | |
| John Muir Trauma Physicians Billing Service | Current | Accepting new patients | |
| Providence Medical Foundation | Past | Accepting new patients | |
| John Muir Health | Past | Accepting new patients | |
| John Muir Health | Past | Accepting new patients | |
| Sutter Valley Hospitals | Past | Accepting new patients | |
| Legacy Emanuel Hospital & Health Center | Past | Accepting new patients | |
| Legacy Good Samaritan Hospital and Medical Center | Past | Accepting new patients | |
| Sutter Delta Medical Center | Past | Accepting new patients | |
| San Ramon Regional Medical Center, LLC | Past | Accepting new patients |
Locations
2400 Balfour Rd
Ste 120
Brentwood, CA 94513
Phone (925) 308-8112
2700 Grant St
Ste 200
Concord, CA 94520
Phone (925) 674-2609
110 Lynch Creek Way
#A
Petaluma, CA 94954
Phone (707) 763-0600
380 Civic Dr
Ste 100
Pleasant Hill, CA 94523
Phone (925) 284-3840
400 Taylor Blvd
Ste 202
Pleasant Hill, CA 94523
Phone (925) 932-4567
400 Taylor Blvd
Ste 105
Pleasant Hill, CA 94523
Phone (925) 687-2570
5201 Norris Canyon Rd
Ste 140
San Ramon, CA 94583
Phone (925) 277-7550
12677 Alcosta Blvd
Ste 210
San Ramon, CA 94583
Phone (925) 365-1019
500 Doyle Park Dr
Ste 100
Santa Rosa, CA 95405
Phone (714) 449-4842
1165 Montgomery Dr
#1112
Santa Rosa, CA 95405
Phone (707) 546-3210
3555 Round Barn Cir
Santa Rosa, CA 95403
Phone (707) 528-1050
1601 Ygnacio Valley Rd
Walnut Creek, CA 94598
Phone (925) 295-1545
1450 Treat Blvd
Ste 300
Walnut Creek, CA 94597
1220 Rossmoor Pkwy
Walnut Creek, CA 94595
Phone (925) 947-3393
177 La Casa Via
Ste 200AD
Walnut Creek, CA 94598
177 La Casa Via
Ste 390
Walnut Creek, CA 94598
Phone (925) 692-5610
Interoperability endpoints
- achoudhry293602@hisp.ehr.sutterhealth.org
- achoudhry9933@ehr.johnmuirhealth.com
Organizations & group practices 13
Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.
-
- General Practice Physician
- Walnut Creek, CA
- NPI 1841407665
-
- Family Medicine Physician
- Brea, CA
- NPI 1871607762
-
- Hospitalist Physician
- Walnut Creek, CA
- NPI 1093864837
-
- Trauma Surgery Physician
- Walnut Creek, CA
- NPI 1962551861
-
- Surgery Physician
- Eureka, CA
- NPI 1477790517
-
- Family Medicine Physician
- Anaheim, CA
- NPI 1639715709
-
- Rehabilitation Hospital Unit
- Walnut Creek, CA
- NPI 1447269303
-
- General Acute Care Hospital
- Concord, CA
- NPI 1801821376
-
- General Acute Care Hospital
- San Ramon, CA
- NPI 1932131489
-
- General Acute Care Hospital
- Antioch, CA
- NPI 1124135132
-
- General Acute Care Hospital
- Vallejo, CA
- NPI 1366686248
-
- Clinical Medical Laboratory
- Portland, OR
- NPI 1295756898
Hospital & facility affiliations 5
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
- General Acute Care Hospital
- Walnut Creek, CA
- NPI 1740215219
-
- General Acute Care Hospital
- Concord, CA
- NPI 1801821376
-
- General Acute Care Hospital
- Petaluma, CA
- NPI 1235162645
-
- General Acute Care Hospital
- Sonoma, CA
- NPI 1710063870
-
- General Acute Care Hospital
- Santa Rosa, CA
- NPI 1134152549
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1213056000000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1783382400000",
"number": "1427218908",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "1450 TREAT BLVD STE 300",
"city": "WALNUT CREEK",
"state": "CA",
"postal_code": "945972168",
"telephone_number": "925-952-2828"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "177 LA CASA VIA STE 390",
"city": "WALNUT CREEK",
"state": "CA",
"postal_code": "945986101",
"telephone_number": "925-692-5610"
}
],
"practiceLocations": [],
"basic": {
"last_name": "CHOUDHRY",
"first_name": "ADITI",
"name_prefix": "Dr.",
"credential": "M.D.",
"sole_proprietor": "NO",
"sex": "F",
"enumeration_date": "2008-06-10",
"last_updated": "2026-07-07",
"certification_date": "2026-07-07",
"status": "A"
},
"taxonomies": [
{
"code": "207RH0003X",
"taxonomy_group": "",
"desc": "Internal Medicine, Hematology & Oncology",
"state": "CA",
"license": "A115151",
"primary": true
}
],
"identifiers": [
{
"code": "01",
"desc": "Other (non-Medicare)",
"issuer": "RAILROAD MEDICARE",
"identifier": "P01149802",
"state": "CA"
}
],
"endpoints": [],
"other_names": []
}
Other providers in Walnut Creek, CA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 7, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
- Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.