Mark Cal Shaw, M.D.
Family Medicine Physician · Bernice, LA
Mark Cal Shaw, M.D. is a family medicine physician with a practice address in Bernice, Louisiana, and NPI 1881644938, issued on May 11, 2006. Check the license (Louisiana MD023225, as entered in NPPES) on the Louisiana State Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Mark Cal Shaw
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License numbers
- MD023225 LA
M9001 TX
Self-reported in NPPES; status is on the state search - Practice location
- 402 Second St., Bernice, LA 71222
- Phone
- (318) 285-9066
- Enumerated
- May 11, 2006
- Record last updated
- Oct 7, 2015 (not updated in 11 years: call before relying on the address or phone)
- Fax
- (318) 285-9065
- Medicaid ID
- 1495611 LA
- Medicare enrollment
- Enrolled (PECOS I20101022000734); accepts Medicare assignment
- Medical or professional school
- University Of Texas Medical School At Houston, 1996
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 1,728 in Louisiana → Look up another NPI →
Also registered at 402 Second St.
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Robert Harris, M.D.Family Medicine Physician1548219231
Verify Mark Cal Shaw in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersLouisiana State Board of Medical Examiners
Search for license MD023225Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
81% fewer Medicare Part D claims than the average family medicine physician in 2024
679 Medicare Part D claims for 328 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 4% of claims. 52 claims were for opioids.
Most prescribed
- Prednisone109 claims
- Naproxen63 claims
- Hydrocodone-Acetaminophen36 claims
- Ciprofloxacin Hcl34 claims
- Azithromycin31 claims
- Cyclobenzaprine Hcl27 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through 3 group practices
- Acs Primary Care Physicians Southwest PACarthage, TX
- Ess OF Nacogdoches LLCNacogdoches, TX
- Integrative Emergency Services Physician Group-Houston PLLCPasadena, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mark Cal Shaw among 1,728 family medicine physician records in Louisiana
Mark Cal Shaw, M.D. is one of 1,728 family medicine physician records with a practice address in Louisiana. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 13% of them.
- NPI issued2006 · 13% of these records are older, 56% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileYes · 70% of these records are
- Graduated1996 · median 2006 among the 1,201 with a school on file
- Record last updated2015 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Louisiana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
4 family medicine physician records list a practice address in Bernice
They are 4 of the 17 NPPES records with a practice address in Bernice, and 1,728 family medicine physician records in Louisiana.
All 1,728 in Louisiana → Every provider in Bernice → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Lois Evans, FNP,CBernice, LA 712221912956772
- Robert Harris, M.D.Bernice, LA 712221548219231
- Dan Thompson, MDBernice, LA 712221205047610
- Cierra January, FNPBastrop, LA 712211841860798
- Christopher Clark, DOBastrop, LA 712201194286955
- Jack Noble, MDBastrop, LA 712201447233036
- Tahir Qayyum, MDBastrop, LA 712201083714117
- James Smith, M.D.Bastrop, LA 712201225065709
Common questions
What is Mark Cal Shaw, M.D.'s NPI number?
Mark Cal Shaw, M.D.'s National Provider Identifier (NPI) is 1881644938, issued on May 11, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mark Cal Shaw, M.D. located?
The NPPES record lists a practice address at 402 Second St., Bernice, LA, 71222. Phone: (318) 285-9066. Providers update this record themselves, so call before visiting.
How can I verify Mark Cal Shaw, M.D.'s license?
NPPES lists Louisiana license number MD023225, as entered by the provider. Search the Louisiana State Board of Medical Examiners at https://www.lsbme.la.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Mark Cal Shaw, M.D. prescribe under Medicare Part D?
In 2024, Mark Cal Shaw, M.D. had 679 Medicare Part D claims for 328 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.