Markham Breen, LCSW
NPI 1265628648 · Clinical Social Worker · Scottsdale, AZ
Markham Breen, LCSW is a Clinical Social Worker provider in Scottsdale, AZ (NPI 1265628648).
Provider details
- NPI number
- 1265628648
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LCSW
- Sex
- Male
- Sole proprietor
- Yes
- License
- LCSW10705 (AZ)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
18 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-09-19
- Last updated
- 2007-09-19
Frequently asked questions
- What is Markham Breen's NPI number?
- Markham Breen's National Provider Identifier (NPI) is 1265628648, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Markham Breen's specialty?
- Markham Breen is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Markham Breen located?
- Markham Breen's practice location on file with NPPES is 5101 E Hearn Rd, Scottsdale, AZ 85254-2802.
- What is Markham Breen's phone number?
- The practice phone number listed in the NPPES registry for Markham Breen is (480) 580-7000.
- Is Markham Breen's NPI active?
- Yes — Markham Breen's NPI (1265628648) is active in the NPPES registry as of the last update on 2007-09-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.