DAVID HA
NPI 1629452099
Anesthesiology in Walnut Creek, CA
About David Ha NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DAVID HA (NPI 1629452099) is an individual anesthesiology provider in Walnut Creek, California, licensed in California (18427) and active in the NPI registry since July 2015. He is enrolled in Medicare PECOS, is affiliated with Nyu Langone Hospitals, and is a graduate of Other (2015).
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
David Ha is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
3Medicare enrollment records show David Ha reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Walnut Creek, CA 94598
- Reassigned Medicare billing, California enrollment
- 810 clinicians in this Medicare group
Santa Rosa, CA 95401
- Reassigned Medicare billing, California enrollment
- 9 clinicians in this Medicare group
Cortlandt Manor, NY 10567
- Reassigned Medicare billing, New York enrollment
- 1,074 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Nyu Langone Hospitals
Acute Care Hospitals · New York, NYMedicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Other Providers at the Same Location NPPES 8
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
WALNUT CREEK, CA 94596
WALNUT CREEK, CA 94596
WALNUT CREEK, CA 94596
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is David Ha's NPI number?
The NPI number for David Ha is 1629452099. It was assigned to this individual provider in the NPPES registry on July 16, 2015.
Where is David Ha located?
David Ha practices at 2175 N California Blvd Ste 425, Walnut Creek, CA 94596. The listed phone number is (925) 543-0140.
What is David Ha's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is David Ha enrolled in Medicare?
Yes. David Ha is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for David Ha's services?
According to the CMS Revalidation Reassignment List (October 2026 release), David Ha reassigns Medicare benefits to 3 organizations: John Muir Trauma Physicians Billing Service (Walnut Creek, CA), Summit Pain Alliance Inc (Santa Rosa, CA) and New York University (Cortlandt Manor, NY). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for David Ha's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is David Ha affiliated with any hospitals?
According to CMS data, David Ha is affiliated with Nyu Langone Hospitals.
When was this NPI record last updated?
The NPPES record for David Ha was last updated on August 17, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# David Ha · NPI 1629452099
Anesthesiology physician in Walnut Creek, California. Individual provider, active in the CMS NPPES registry since July 16, 2015.
## Identity
- **NPI:** 1629452099 (Entity type: Individual)
- **Enumerated:** July 16, 2015
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** 18427 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 2175 N CALIFORNIA BLVD STE 425, Walnut Creek, CA 94596-7164
- **Phone:** (925) 543-0140
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 3 organizations under Medicare reassignment (form CMS-855R): John Muir Trauma Physicians Billing Service (NPI 1093864837, Walnut Creek, CA); Summit Pain Alliance Inc (NPI 1558630020, Santa Rosa, CA); New York University (NPI 1881987246, Cortlandt Manor, NY) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2015
## Record status
- **NPPES last updated:** August 17, 2021
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Source: [NPI Profile](https://npiprofile.com/npi/1629452099) · Data from the CMS NPPES public registry.