DR. COLLEEN ELIZABETH MULLIN M.D.
NPI 1699970418
Obstetrics & Gynecology in La Jolla, CA
About Dr. Colleen Elizabeth Mullin M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. COLLEEN ELIZABETH MULLIN M.D. (NPI 1699970418) is an individual obstetrics & gynecology provider in La Jolla, California, licensed in California (A135501) and active in the NPI registry since June 2007. She is enrolled in Medicare PECOS, maintains a secondary practice location in Encinitas, and is a graduate of Creighton University School Of Medicine (2007).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. Colleen Elizabeth Mullin M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
3Medicare enrollment records show Colleen Mullin reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
La Jolla, CA 92037
- Reassigned Medicare billing, California enrollment
- Medicare enrollment name: San Diego Womens Health Inc
- 5 clinicians in this Medicare group
Cortez, CO 81321
- Reassigned Medicare billing, Colorado enrollment
- 1,193 clinicians in this Medicare group
Durango, CO 81301
- Reassigned Medicare billing, Colorado enrollment
- 733 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 92037 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 8
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
LA JOLLA, CA 92037
LA JOLLA, CA 92037
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 Colleen Mullin's NPI number?
The NPI number for Colleen Mullin is 1699970418. It was assigned to this individual provider in the NPPES registry on June 20, 2007.
Where is Colleen Mullin located?
Colleen Mullin practices at 9850 Genesee Ave Ste 820, La Jolla, CA 92037. The listed phone number is (858) 677-0777.
What is Colleen Mullin's specialty?
The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.
Is Colleen Mullin enrolled in Medicare?
Yes. Colleen Mullin is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Colleen Mullin's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Colleen Mullin reassigns Medicare benefits to 3 organizations: San Diego Women's Health, Inc. (La Jolla, CA), Catholic Health Initiatives Colorado (Cortez, CO) and Portercare Adventist Health System (Durango, CO). 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 Colleen Mullin's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Colleen Mullin accept?
Health plans from Select Health list Colleen Mullin as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Colleen Mullin was last updated on July 7, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 months 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.
# Dr. Colleen Elizabeth Mullin, M.D. · NPI 1699970418
Obstetrics & Gynecology physician in La Jolla, California. Individual provider, active in the CMS NPPES registry since June 20, 2007.
## Identity
- **NPI:** 1699970418 (Entity type: Individual)
- **Enumerated:** June 20, 2007
- **Primary specialty:** Obstetrics & Gynecology · taxonomy 207V00000X
- **State license:** A135501 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 9850 GENESEE AVE STE 820, La Jolla, CA 92037-1219
- **Phone:** (858) 677-0777
## 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): San Diego Women's Health, Inc. (NPI 1396986667, La Jolla, CA); Catholic Health Initiatives Colorado (NPI 1003425885, Cortez, CO); Portercare Adventist Health System (NPI 1124623954, Durango, CO) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Creighton University School Of Medicine, class of 2007
## Record status
- **NPPES last updated:** July 7, 2026
---
Source: [NPI Profile](https://npiprofile.com/npi/1699970418) · Data from the CMS NPPES public registry.