Clin Exp Metastasis
Basement MembraneBreast NeoplasmsCell Movement
Dr. Alison S. Breen, MD
NPI1942434238PAC ID9739320151
- Medicare services, 2024
- 31
- Medicare patients, 2024
- 44
- Part D claims, 2024
- 52
- Publications
- 1
- MIPS score, 2024
- 90
- Practice address
- 8110 Laguna Blvd, Elk Grove, CA 95758
- Practice phone
- Call (916) 683-3950
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Regents of the University of California
Elk Grove, California
Find Dr. Breen's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Alison S. Breen is an OB-GYN in Elk Grove, California
Dr. Breen practices at Regents of the University of California in Elk Grove, California.
Dr. Breen's NPI, 1942434238, was assigned on May 14, 2009. Dr. Breen graduated from UC Davis School of Medicine in 2009. Dr. Breen holds California license A113675.
NPI and contact details
- NPI
- 1942434238NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9739320151
- NPI enumeration date
- May 14, 2009
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (916) 683-3950
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 43
- Medical school graduation
- 2009
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Alison S. Breen practices at Regents of the University of California in Elk Grove, California
Dr. Breen's primary practice is Regents of the University of California, at 8110 Laguna Blvd, Elk Grove, CA 95758 in Sacramento County. The practice phone is (916) 683-3950.
- Regents of the University of California8110 Laguna Blvd, Elk Grove, CA 95758 · Sacramento CountyPhone(916) 683-3950
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Alison S. Breen is affiliated with 4 sites of care and 2 medical groups
Dr. Breen's primary practice is Regents of the University of California in Elk Grove, California. Dr. Breen is also affiliated with UC Davis Medical Center. The medical group on file is UC Davis Medical Group. Dmand AI also links Dr. Breen to 2 more group practices and clinics and 1 medical group, each named with a free account.
Regents of the University of CaliforniaPrimary
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Alison S. Breen's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Breen practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Regents of the University of California | Available with a free account |
| +3 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
See the EHR and IT leaders at every site where Dr. Breen practices
Dmand AI maps EHR vendors, IT decision makers and buying committees across each health system and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Alison S. Breen is one of 4,642 OB-GYNs in California
Obstetrics and gynecology is Dr. Breen's primary specialty in the NPI Registry, under taxonomy code 207V00000X. Dr. Breen is board certified in obstetrics & gynecology by the American Board of Obstetrics and Gynecology. Dr. Breen is licensed in California.
Specialties and state licenses
- Obstetrics and gynecology, CaliforniaPrimary
Clinical focus
Dmand AI lists menopause and ovarian cyst among the conditions Dr. Breen treats.
OB-GYNs near Dr. Breen
Counts of OB-GYNs with a Dmand AI profile, by place and practice. Each opens the list.
4,642OB-GYNs in California
3OB-GYNs in Elk Grove
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Alison S. Breen billed Medicare for 31 services in 2024
CMS data shows 31 Medicare services from Dr. Breen across 2 procedure codes in 2024, for 44 Medicare patients. Medicare paid $1,563 for them. Every service was in an office.
Medicare services, 202431
Medicare patients44
Paid by Medicare$1,563
Procedure codes2
Dr. Breen's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 172024: 3182%
Dr. Breen compared with the California median for OB-GYNs, 2024
- Dr. Breen
- California median
- Medicare services
- 31vs 5847% below
- Medicare patients
- 44vs 5215% below
- Part D claims
- 27vs 3523% below
Medians across 3,823 OB-GYNs in California with Dmand AI profiles that report each measure.
Dr. Breen's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Breen?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Breen and other OB-GYNs in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Alison S. Breen treated 44 Medicare patients in 2024, average age 66
CMS counts 44 Medicare patients who saw Dr. Breen in 2024. The largest group is 65 to 74, with 20 patients. 64% of them have high blood pressure, and 57% have high cholesterol. 25% are also on Medicaid. Their average risk score is 1.25, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Breen's median patient age at 37, with 99% women.
Medicare patients, 202444
Average age66
Average risk score1.25
Also on Medicaid25%
Dr. Breen's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Chronic conditions among Dr. Breen's Medicare patients, 2024
- High blood pressure64%
- High cholesterol57%
- Arthritis32%
- Diabetes32%
Share of Medicare patients with each condition. A patient can have several.
Dr. Breen's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 37
Patient panel by sex, all payers
- Women99%
- Men0%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Alison S. Breen wrote 52 Medicare Part D claims in 2024
In 2024, Dr. Breen wrote 52 Medicare Part D claims for 26 patients. 98% of them were for generic drugs. CMS names the drug for 27 of them, across 1 drug with 11 or more claims each, at $3,571 in total drug cost. In 2023, CMS named 16 claims across 1 drug.
Part D claims, 202452
Drugs named by CMS1
Total drug cost$3,571
Part D patients26
Dr. Breen's Part D claims by kind of drug, 2024
- Generic51 claims98%
- Brand-name and other1 claims2%
Dr. Breen's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 162024: 2769%
Drugs named by CMS: 1 in 2024, 1 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Alison S. Breen scored 90 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 90 out of 100 for Dr. Breen for performance year 2024, reported as part of a group. Dr. Breen accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Breen's MIPS scores, performance year 2024
- 90of 100Final score
- 86.2of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 78of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
For MedTech and pharma teams
Find OB-GYNs like Dr. Breen by procedure volume and prescribing
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. Alison S. Breen has 1 publication on record
Dmand AI links 1 paper to Dr. Breen in 2007. Dr. Breen's most frequent co-authors are Hamed Kargozaran, MD and Katherine Davis Watson, MD.
Papers1
Dr. Breen's most frequent co-authors
Recent publications by Dr. Breen
See who Dr. Breen researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Breen works with, so you can find a warm path to the right OB-GYNs.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Alison S. Breen has 1 award and honors on record
Dmand AI lists 1 award for Dr. Breen, most recently CMS Stage 1 EHR in 2014.
Awards and honors for Dr. Breen
- 2014
- CMS Stage 1 EHR
Source: Dmand AI Professional Profile Data
Dr. Alison S. Breen graduated from UC Davis School of Medicine
Dr. Breen graduated from UC Davis School of Medicine in 2009.
- Medical school
- Board certified in obstetrics & gynecology
Source: Dmand AI Professional Profile Data
Dr. Alison S. Breen accepts plans from 8 insurance carriers
Dr. Breen is in network with 8 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. Medicare plans come from the most carriers, 7. Check the plan with the practice before a visit.
- Aetna
- Blue Cross Blue Shield of Michigan
- United Healthcare
- Blue Cross Blue Shield of Massachusetts
- HCSC
- Regence Health Plans
- Blue Cross and Blue Shield of Kansas City
- CMS Medicare
Plan types Dr. Breen accepts, by number of carriers
- Medicare7
- PPO6
- HMO3
- POS3
- EPO2
Source: Dmand AI Insurance Network Data
Sources for Dr. Alison S. Breen's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Awards and committee roles | Dmand AI Professional Profile Data |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Alison S. Breen
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Alison S. Breen's NPI number?
Dr. Alison S. Breen's NPI number is 1942434238. It was assigned on May 14, 2009, and it is active in the NPI Registry.
What kind of doctor is Dr. Alison S. Breen?
Dr. Alison S. Breen is an OB-GYN in Elk Grove, California. The primary specialty in the NPI Registry is Obstetrics & Gynecology Physician (taxonomy code 207V00000X).
Where does Dr. Alison S. Breen practice?
Dr. Breen practices at 8110 Laguna Blvd, Elk Grove, CA 95758. Dr. Breen's primary practice is Regents of the University of California in Elk Grove, California. Dmand AI also links Dr. Breen to 2 group practices and clinics and 1 medical group.
What is Dr. Alison S. Breen's office phone number?
The practice phone on file for Dr. Breen is (916) 683-3950.
What is Dr. Alison S. Breen's medical license number?
Dr. Breen holds California license A113675.
Which hospitals is Dr. Alison S. Breen affiliated with?
Dr. Breen is affiliated with UC Davis Medical Center.
What medical group is Dr. Alison S. Breen part of?
Dr. Breen is linked to UC Davis Medical Group. Dmand AI links Dr. Breen to 1 more medical group.
Does Dr. Alison S. Breen accept Medicare?
Yes. CMS data shows Dr. Breen billed Medicare for 31 services in 2024, and Dr. Breen accepts Medicare assignment.
What is Dr. Alison S. Breen's MIPS score?
Dr. Breen's MIPS final score for performance year 2024 is 90 out of 100, reported as part of a group.
How many Medicare patients does Dr. Alison S. Breen see?
CMS counts 44 Medicare patients who saw Dr. Breen in 2024, with an average age of 66.
Show 8 more questionsShow fewer questions
Is Dr. Alison S. Breen board certified?
Yes. Dr. Breen is board certified in obstetrics & gynecology by the American Board of Obstetrics and Gynecology.
What services does Dr. Alison S. Breen bill to Medicare?
In 2024, Dr. Breen's most billed Medicare services were office visit, established patient (99213) and care management and other visits (99459).
Where did Dr. Alison S. Breen go to medical school?
Dr. Breen graduated from UC Davis School of Medicine in 2009.
What drugs does Dr. Alison S. Breen prescribe most?
In 2024 Medicare Part D data, Dr. Breen's most prescribed drugs by claims were Estradiol.
How long has Dr. Alison S. Breen been practicing?
Dr. Breen graduated from medical school in 2009, 17 years ago.
Does Dr. Alison S. Breen do research?
Dmand AI links 1 publication to Dr. Breen.
Who does Dr. Alison S. Breen publish with?
Dr. Breen's most frequent co-authors are Hamed Kargozaran, MD (1 shared paper) and Katherine Davis Watson, MD (1 shared paper).
What insurance does Dr. Alison S. Breen accept?
Dr. Breen is in network with 8 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. Medicare plans come from the most carriers, 7. Check the plan with the practice before a visit.
Selling to obstetrics and gynecology practices?
See OB-GYNs in California by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card