Franklin Thelmo, DO
Endocrinology, Diabetes & Metabolism Physician · Wilmington, DE
Franklin Thelmo, DO is an endocrinology, diabetes & metabolism physician with a practice address in Wilmington, Delaware, and NPI 1861951790, issued on Mar 19, 2019. Check the license (Delaware C2-0024462, as entered in NPPES) on the Delaware Board of Medical Licensure and Discipline; the Medicare figures below come from public CMS files.
- Name
- Franklin Thelmo
- Credential
- DO
- Primary taxonomy
- Endocrinology, Diabetes & Metabolism Physician 207RE0101X
- License numbers
- C2-0024462 DE
OS021920 PA
Self-reported in NPPES; status is on the state search - Practice location
- 501 W 14TH St FL 4, Wilmington, DE 19801
- Phone
- (302) 623-3475
- Enumerated
- Mar 19, 2019
- Entity
- Type 1 · individual
Also registered at 501 W 14TH St FL 4
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Colleen Caulfield, MS, RDRegistered Dietitian1619663614
- Casie Hartman, RDRegistered Dietitian1003625948
- Amanda McKenna, MDEndocrinology, Diabetes & Metabolism Physician1295239077
- Gabrielle Mitchell, MS, RD, LDNRegistered Dietitian1487411401
- Linda Simmons, CRNPFamily Nurse Practitioner1497087902
Verify Franklin Thelmo in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersDelaware Board of Medical Licensure and Discipline
Search for license C2-0024462Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
80% fewer Medicare Part D claims than the average endocrinology, diabetes & metabolism physician in 2024
530 Medicare Part D claims for 151 beneficiaries, against an average of 2,630 among the 8,223 providers of this specialty who prescribed in Part D. Brand-name drugs were 49% of claims.
Most prescribed
- Levothyroxine Sodium46 claims
- Ultra-Fine Mini Pen Needle37 claims
- Ozempic34 claims
- Lantus Solostar32 claims
- Trulicity23 claims
- Mounjaro20 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: $355.11
10 payments, mostly food and beverage; the largest payer was Corcept Therapeutics. The 5,661 providers of this specialty with any payment received $5,742.15 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
- Christiana Care Health Services IncNewark, DE
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Endocrinology, Diabetes & Metabolism Physician providers in Delaware
There are 31 endocrinology, diabetes & metabolism physician records in Delaware.
Other endocrinology, diabetes & metabolism physician records in Delaware
- Samir AhmedSeaford, DE1598317687
- Hajira Amir, MDDover, DE1295256790
- Kalleen Barham, MDNewark, DE1649485053
- Carlton Boxhill, M.D.Lewes, DE1144226267
- Sheetal Bulchandani, MDNewark, DE1447746185
- Chitra Choudhary, MDDover, DE1467749374
- Suzanne Clough, MDWilmington, DE1972779221
- Manveen Duggal, M.D.Dover, DE1538102686
- Ahmad Elayyan, MDMillsboro, DE1366884785
- Rithikaa Ellangovan, MDMilford, DE1447812615
Common questions
What is Franklin Thelmo, DO's NPI number?
Franklin Thelmo, DO's National Provider Identifier (NPI) is 1861951790, issued on Mar 19, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Franklin Thelmo, DO located?
The NPPES record lists a practice address at 501 W 14TH St FL 4, Wilmington, DE, 19801. Phone: (302) 623-3475. Providers update this record themselves, so call before visiting.
How can I verify Franklin Thelmo, DO's license?
NPPES lists Delaware license number C2-0024462, as entered by the provider. Search the Delaware Board of Medical Licensure and Discipline at https://delpros.delaware.gov/OH_VerifyLicense. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Franklin Thelmo, DO prescribe under Medicare Part D?
In 2024, Franklin Thelmo, DO had 530 Medicare Part D claims for 151 beneficiaries; the average among endocrinology, diabetes & metabolism physician prescribers was 2,630. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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) 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 27, 2026.