Maria C. Castellano, M.D.
Gastroenterology Physician · Valdosta, GA
Maria C. Castellano, M.D. is a gastroenterology physician with a practice address in Valdosta, Georgia, and NPI 1306950100, issued on Aug 18, 2006. Check the license (Georgia 045419, as entered in NPPES) on the Georgia Composite Medical Board; the Medicare figures below come from public CMS files.
- Name
- Maria C. Castellano
- Credential
- M.D.
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- 045419 GA
Self-reported in NPPES; status is on the state search - Practice location
- 2418 N Oak St, Valdosta, GA 31602
- Phone
- (229) 588-4688
- Enumerated
- Aug 18, 2006
- Record last updated
- Feb 3, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (229) 588-4468
- Medicaid ID
- 674370634A GA
- Medicare enrollment
- Enrolled (PECOS I20050608000881); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 530 in Georgia → Look up another NPI →
Also registered at 2418 N Oak St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Robert Bennett, MPTPhysical Therapist1619011566
- James Campagna, M.D.Anesthesiology Physician1801815444
- Michael Caoile, FNPFamily Nurse Practitioner1184286684
- Jennifer Lawrence, M.D.Endocrinology, Diabetes & Metabolism Physician1396827457
- Quintin Pulido, MD, FACSSpecialist1548215916
- William Tidmore, M.D.Rheumatology Physician1073695292
Verify Maria C. Castellano in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersGeorgia Composite Medical Board
Search for license 045419Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
13% fewer Medicare Part D claims than the average gastroenterology physician in 2024
702 Medicare Part D claims for 184 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 21% of claims.
Most prescribed
- Pantoprazole Sodium168 claims
- Famotidine112 claims
- Lubiprostone43 claims
- Dicyclomine Hcl35 claims
- Omeprazole35 claims
- Sucralfate31 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.
Industry payments in 2024: $183.49
5 payments; by number, the most common kind was food and beverage; the largest payer was Boston Scientific Corporation. The 13,350 providers of this specialty with any payment received $5,015.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Maria C Castellano, MD, LLCValdosta, GA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Maria C. Castellano among 530 gastroenterology physician records in Georgia
Maria C. Castellano, M.D. is one of 530 gastroenterology physician records with a practice address in Georgia. 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 21% of them.
- NPI issued2006 · 21% of these records are older, 45% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileYes · 75% of these records are
- Graduated1990 · median 2001 among the 397 with a school on file
- Record last updated2011 · 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 207RG0100X and a Georgia practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gastroenterology Physician providers in Georgia
There are 530 gastroenterology physician records in Georgia.
All 530 in Georgia → Every provider in Valdosta → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Jeff Anucha, M.D.Valdosta, GA 316021942652524
- Madeline Culpepper, FNP-BCValdosta, GA 316021811850373
- Amrendra MandalValdosta, GA 316021518480250
- Eric Ward, M.D.Valdosta, GA 316021699703041
- Edward Fricker, MDValdosta, GA 316051316933823
- David Whitehead, M.D.Jesup, GA 315451962403766
- Sudhakar Jonnalagadda, MDDouglas, GA 315331043203011
- Abhishek Bhurwal, MDBrunswick, GA 315201184011991
Common questions
What is Maria C. Castellano, M.D.'s NPI number?
Maria C. Castellano, M.D.'s National Provider Identifier (NPI) is 1306950100, issued on Aug 18, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Maria C. Castellano, M.D. located?
The NPPES record lists a practice address at 2418 N Oak St, Valdosta, GA, 31602. Phone: (229) 588-4688. Providers update this record themselves, so call before visiting.
How can I verify Maria C. Castellano, M.D.'s license?
NPPES lists Georgia license number 045419, as entered by the provider. Search the Georgia Composite Medical Board at https://medicalboard.georgia.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Maria C. Castellano, M.D. prescribe under Medicare Part D?
In 2024, Maria C. Castellano, M.D. had 702 Medicare Part D claims for 184 beneficiaries; the average among gastroenterology physician prescribers was 811. 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.