MR. JOHN HOWARTH KIRK III MD
NPI 1922020783
Obstetrics & Gynecology in Saint Helena, CA
About Mr. John Howarth Kirk Iii Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MR. JOHN HOWARTH KIRK III MD (NPI 1922020783) is an individual obstetrics & gynecology provider in Saint Helena, California, licensed in California (A54807) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS and is a graduate of Yale University School Of Medicine (1994).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 3
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Mr. John Howarth Kirk Iii Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
4Medicare enrollment records show John Kirk reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Fresno, CA 93720
- Reassigned Medicare billing, California enrollment
- 296 clinicians in this Medicare group
Crescent City, CA 95531
- Reassigned Medicare billing, California enrollment
- 36 clinicians in this Medicare group
Long Beach, CA 90806
- Reassigned Medicare billing, California enrollment
- 191 clinicians in this Medicare group
Greenville, SC 29607
- Reassigned Medicare billing, California enrollment
- Medicare enrollment name: Obhg California PC
- 711 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.
Areas of Expertise CMS Part B claims 3
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 94574 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare 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 4
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SAINT HELENA, CA 94574
SAINT HELENA, CA 94574
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 John Kirk's NPI number?
The NPI number for John Kirk is 1922020783. It was assigned to this individual provider in the NPPES registry on July 24, 2006.
Where is John Kirk located?
John Kirk practices at 821 Saint Helena Hwy S, Saint Helena, CA 94574. The listed phone number is (707) 967-7550.
What is John Kirk's specialty?
The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.
Is John Kirk enrolled in Medicare?
Yes. John Kirk is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for John Kirk's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Kirk reassigns Medicare benefits to 4 organizations: Saint Agnes Medical Foundation (Fresno, CA), Sutter Coast Hospital (Crescent City, CA), Magella Medical Group, Inc. (Long Beach, CA) and Obhg California, P.C. (Greenville, SC). 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 John Kirk'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 John Kirk was last updated on June 16, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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. John Howarth Kirk III, MD · NPI 1922020783
Obstetrics & Gynecology physician in Saint Helena, California. Individual provider, active in the CMS NPPES registry since July 24, 2006.
## Identity
- **NPI:** 1922020783 (Entity type: Individual)
- **Enumerated:** July 24, 2006
- **Primary specialty:** Obstetrics & Gynecology · taxonomy 207V00000X
- **State license:** A54807 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 821 SAINT HELENA HWY S, Saint Helena, CA 94574-2266
- **Phone:** (707) 967-7550 · **Fax:** (707) 963-5083
## 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:** 4 organizations under Medicare reassignment (form CMS-855R): Saint Agnes Medical Foundation (NPI 1558819482, Fresno, CA); Sutter Coast Hospital (NPI 1457367062, Crescent City, CA); Magella Medical Group, Inc. (NPI 1376640086, Long Beach, CA); Obhg California, P.C. (NPI 1215258892, Greenville, SC) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Yale University School Of Medicine, class of 1994
## Record status
- **NPPES last updated:** June 16, 2016
- **Other identifiers:** Other GR0081501 (CA); Medicare UPIN G73409; Medicaid GR0081500 (CA)
---
Source: [NPI Profile](https://npiprofile.com/npi/1922020783) · Data from the CMS NPPES public registry.