Mark Shreffler, LPC
NPI 1457436453 · Professional Counselor · Oklahoma City, OK
Enrolled with Medicare as Practitioner - Mental Health Counselor · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Shreffler, LPC is a Professional Counselor provider in Oklahoma City, OK (NPI 1457436453).
Provider details
- NPI number
- 1457436453
- Entity type
- Individual
- Primary specialty
- Professional CounselorBehavioral Health & Social Service Providers
- Credential
- LPC
- Sex
- Male
- Sole proprietor
- Yes
Specialties & taxonomies
Behavioral Health & Social Service Providers
- Professional Counselor101YP2500X
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
19 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
Mailing address
Registry dates
- Enumerated
- 2006-10-26
- Last updated
- 2021-04-28
- Certified
- 2021-04-28
Frequently asked questions
- What is Mark Shreffler's NPI number?
- Mark Shreffler's National Provider Identifier (NPI) is 1457436453, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Shreffler's specialty?
- Mark Shreffler is listed in the NPPES registry with a primary specialty of Professional Counselor (Behavioral Health & Social Service Providers).
- Where is Mark Shreffler located?
- Mark Shreffler's practice location on file with NPPES is 3516 Nw 50th St, Oklahoma City, OK 73112-5630.
- What is Mark Shreffler's phone number?
- The practice phone number listed in the NPPES registry for Mark Shreffler is (405) 596-1893.
- Does Mark Shreffler accept Medicare?
- Mark Shreffler is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Shreffler's NPI active?
- Yes — Mark Shreffler's NPI (1457436453) is active in the NPPES registry as of the last update on 2021-04-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.