KAREN ANN HARDY MD
NPI 1508971938
Pediatrics - Pediatric Pulmonology in Palo Alto, CA
About Karen Ann Hardy Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
KAREN ANN HARDY MD (NPI 1508971938) is an individual pediatric pulmonology provider in Palo Alto, California, licensed in California (G44088) and active in the NPI registry since August 2006. She is enrolled in Medicare PECOS and maintains a secondary practice location in Palo Alto.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
Other Identifiers 2
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Karen Ann Hardy Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
3Medicare enrollment records show Karen Hardy reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Palo Alto, CA 94304
- Reassigned Medicare billing, California enrollment
- 3,617 clinicians in this Medicare group
Stanford, CA 94305
- Reassigned Medicare billing, California enrollment
- 4,258 clinicians in this Medicare group
Modesto, CA 95350
- Reassigned Medicare billing, California enrollment
- Medicare enrollment name: Valley Childrens Medical Group
- 387 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.
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.
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 Karen Hardy's NPI number?
The NPI number for Karen Hardy is 1508971938. It was assigned to this individual provider in the NPPES registry on August 19, 2006.
Where is Karen Hardy located?
Karen Hardy practices at 725 Welch Rd, Palo Alto, CA 94304. The listed phone number is (650) 497-8000.
What is Karen Hardy's specialty?
The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Pulmonology, with taxonomy code 2080P0214X.
Is Karen Hardy enrolled in Medicare?
Yes. Karen Hardy is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Karen Hardy's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Karen Hardy reassigns Medicare benefits to 3 organizations: Lpch Medical Group Div Of Lucile (Palo Alto, CA), Stanford Health Care (Stanford, CA) and Valley Children's Medical Group (Modesto, CA). 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 Karen Hardy'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 Karen Hardy was last updated on October 23, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 days 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.
# Karen Ann Hardy, MD · NPI 1508971938
Pediatric Pulmonology physician in Palo Alto, California. Individual provider, active in the CMS NPPES registry since August 19, 2006.
## Identity
- **NPI:** 1508971938 (Entity type: Individual)
- **Enumerated:** August 19, 2006
- **Primary specialty:** Pediatrics - Pediatric Pulmonology · taxonomy 2080P0214X
- **State license:** G44088 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 725 WELCH RD, Palo Alto, CA 94304-1601
- **Phone:** (650) 497-8000
## 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:** 3 organizations under Medicare reassignment (form CMS-855R): Lpch Medical Group Div Of Lucile (NPI 1417907940, Palo Alto, CA); Stanford Health Care (NPI 1437292927, Stanford, CA); Valley Children's Medical Group (NPI 1437555265, Modesto, CA) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** October 23, 2026
- **Other identifiers:** Medicaid 00G440880 (CA); Medicaid 2085810 (NV)
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Source: [NPI Profile](https://npiprofile.com/npi/1508971938) · Data from the CMS NPPES public registry.