Ivonne Herrera, MD
Rheumatology Physician · Seaford, DE
Ivonne Herrera, MD is a rheumatology physician with a practice address in Seaford, Delaware, and NPI 1992856785, issued on Jan 16, 2007. Check the license (Delaware CI0006778, as entered in NPPES) on the Delaware Board of Medical Licensure and Discipline; the Medicare figures below come from public CMS files.
- Name
- Ivonne Herrera
- Credential
- MD
- Primary taxonomy
- Rheumatology Physician 207RR0500X
- License numbers
- CI0006778 DE
D0078900 MD
Self-reported in NPPES; status is on the state search - Practice location
- 1350 Middleford RD, Seaford, DE 19973
- Phone
- (302) 628-8300
- Enumerated
- Jan 16, 2007
- Record last updated
- Apr 12, 2017 (not updated in 9 years: call before relying on the address or phone)
- Fax
- (302) 628-8400
- Medicaid ID
- 1000021656 DE
- Medicare enrollment
- Enrolled (PECOS I20150414000945); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest rheumatology physician records → All 19 in Delaware → Look up another NPI →
Also registered at 1350 Middleford RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Darius Sypek, MDInternal Medicine Physician1912936915
Verify Ivonne Herrera 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 CI0006778Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
51% more Medicare Part D claims than the average rheumatology physician in 2024
2,991 Medicare Part D claims for 472 beneficiaries, against an average of 1,978 among the 6,301 providers of this specialty who prescribed in Part D. 155 claims were for opioids.
Most prescribed
- Hydroxychloroquine Sulfate489 claims
- Prednisone341 claims
- Duloxetine Hcl159 claims
- Gabapentin145 claims
- Alendronate Sodium143 claims
- Methotrexate136 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 95.2 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $1,934.35
83 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 4,486 providers of this specialty with any payment received $8,538.33 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 2 group practices
- Arthritis And Osteoporosis Center LLCSalisbury, MD
- Tidalhealth Specialty Care LLCSalisbury, MD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ivonne Herrera among 19 rheumatology physician records in Delaware
Ivonne Herrera, MD is one of 19 rheumatology physician records with a practice address in Delaware. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 63% of them.
- NPI issued2007 · 63% of these records are older, 32% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 79% of these records are
- Graduated1994 · median 1994 among the 15 with a school on file
- Record last updated2017 · 79% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RR0500X and a Delaware practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Rheumatology Physician providers in Delaware
There are 19 rheumatology physician records in Delaware.
All 19 in Delaware → Every provider in Seaford → Rheumatology Physician nationwide →
The 8 rheumatology physician records with the nearest ZIP codes
- Lourdes Aponte, MDLewes, DE 199581144299959
- Jose Pando, MDLewes, DE 199581306839048
- Surjeet Dheer, DODover, DE 199041689024143
- Maged Hosny, MDDover, DE 199041326003351
- Yvan Maque Acosta, M.D.Dover, DE 199041306252648
- Robert Moyer, M.D.Dover, DE 199041861477077
- Jinsong Zhang, M.D.Dover, DE 199041215196027
- Nancy Murphy, MDWilmington, DE 198101861505778
Common questions
What is Ivonne Herrera, MD's NPI number?
Ivonne Herrera, MD's National Provider Identifier (NPI) is 1992856785, issued on Jan 16, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Ivonne Herrera, MD located?
The NPPES record lists a practice address at 1350 Middleford RD, Seaford, DE, 19973. Phone: (302) 628-8300. Providers update this record themselves, so call before visiting.
How can I verify Ivonne Herrera, MD's license?
NPPES lists Delaware license number CI0006778, 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 Ivonne Herrera, MD prescribe under Medicare Part D?
In 2024, Ivonne Herrera, MD had 2,991 Medicare Part D claims for 472 beneficiaries; the average among rheumatology physician prescribers was 1,978. Part D covers Medicare prescriptions only.
What is Ivonne Herrera, MD's MIPS final score?
The 2023 MIPS final score is 95.2 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.