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Derek Markham
NPI 1265897342 · Behavior Analyst · Milwaukee, WI
Derek Markham is a Behavior Analyst provider in Milwaukee, WI (NPI 1265897342).
Provider details
- NPI number
- 1265897342
- Entity type
- Individual
- Primary specialty
- Behavior AnalystBehavioral Health & Social Service Providers
- Sex
- Male
- Sole proprietor
- Yes
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Established profile(66/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
10 yrs in NPPES registry
- Profile completeness38% of score
83% 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
310 E Buffalo St
Suite 148
Milwaukee, WI 53202-5808
Phone: (414) 847-5722
Street-level locationGet directions
Mailing address
310 E Buffalo St
Milwaukee, WI 53202-5808
Registry dates
- Enumerated
- 2015-12-16
- Last updated
- 2015-12-16
Frequently asked questions
- What is Derek Markham's NPI number?
- Derek Markham's National Provider Identifier (NPI) is 1265897342, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Derek Markham's specialty?
- Derek Markham is listed in the NPPES registry with a primary specialty of Behavior Analyst (Behavioral Health & Social Service Providers).
- Where is Derek Markham located?
- Derek Markham's practice location on file with NPPES is 310 E Buffalo St, Milwaukee, WI 53202-5808.
- What is Derek Markham's phone number?
- The practice phone number listed in the NPPES registry for Derek Markham is (414) 847-5722.
- Is Derek Markham's NPI active?
- Yes — Derek Markham's NPI (1265897342) is active in the NPPES registry as of the last update on 2015-12-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.