MR. DAVID HORAK MD
NPI 1972601755
Internal Medicine - Critical Care Medicine in Duarte, CA
About Mr. David Horak Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MR. DAVID HORAK MD (NPI 1972601755) is an individual critical care medicine provider in Duarte, California, licensed in California (G40765) and active in the NPI registry since September 2006. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Mr. David Horak Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show David Horak reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Duarte, CA 91010
- Reassigned Medicare billing, California enrollment
- 1,335 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 91010 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
DUARTE, CA 91010
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 Horak's NPI number?
The NPI number for David Horak is 1972601755. It was assigned to this individual provider in the NPPES registry on September 20, 2006.
Where is David Horak located?
David Horak practices at 1500 E Duarte Rd, Duarte, CA 91010. The listed phone number is (626) 359-8111.
What is David Horak's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Critical Care Medicine, with taxonomy code 207RC0200X.
Is David Horak enrolled in Medicare?
Yes. David Horak is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for David Horak's services?
According to the CMS Revalidation Reassignment List (October 2026 release), David Horak reassigns Medicare benefits to City Of Hope Medical Foundation (Duarte, CA). The 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 Horak's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for David Horak was last updated on November 27, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.
# Mr. David Horak, MD · NPI 1972601755
Critical Care Medicine physician in Duarte, California. Individual provider, active in the CMS NPPES registry since September 20, 2006.
## Identity
- **NPI:** 1972601755 (Entity type: Individual)
- **Enumerated:** September 20, 2006
- **Primary specialty:** Internal Medicine - Critical Care Medicine · taxonomy 207RC0200X
- **State license:** G40765 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 1500 E DUARTE RD, Duarte, CA 91010
- **Phone:** (626) 359-8111
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** City Of Hope Medical Foundation (NPI 1871886366, Duarte, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** November 27, 2023
- **Other identifiers:** Medicaid 00G407650 (CA)
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Source: [NPI Profile](https://npiprofile.com/npi/1972601755) · Data from the CMS NPPES public registry.