IVONNE HERRERA MD
NPI 1992856785
Internal Medicine - Rheumatology in Seaford, DE

Q: What is Ivonne Herrera's NPI number?

The NPI number for Ivonne Herrera is 1992856785. It was assigned to this individual provider in the NPPES registry on January 16, 2007.

Q: What is Ivonne Herrera's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Rheumatology, with taxonomy code 207RR0500X.

Q: When was this NPI record last updated?

The NPPES record for Ivonne Herrera was last updated on April 12, 2017. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since January 16, 2007PECOS EnrolledAccepts Medicare Assignment

95.23/100

CMS Quality Rating

1350 MIDDLEFORD RD, SUITE 502, SEAFORD, DE 19973(302) 628-8300(302) 628-8400 Get Directions Write a Review

NPPES record last updated: April 12, 2017. Verified against the NPPES registry weekly; last sync: October 25, 2026.

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About Ivonne Herrera Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

IVONNE HERRERA MD (NPI 1992856785) is an individual rheumatology provider in Seaford, Delaware, licensed in Delaware (CI0006778) and active in the NPI registry since January 2007. She is enrolled in Medicare PECOS, is affiliated with Tidalhealth Peninsula Regional, Inc, and is a graduate of Other (1994).

NPPES Registry Identity

NPI1992856785

Entity TypeIndividualFemale

Primary Taxonomy207RR0500X

Provider Legal NameIVONNE HERRERACredential: MD

Location Address1350 MIDDLEFORD RD, SUITE 502Seaford, DE 19973-3664

Mailing Address1350 Middleford Rd, Suite 502Seaford, DE 19973-3664 · (302) 628-8300 · Fax (302) 628-8400

Phone(302) 628-8300

Fax(302) 628-8400

Sole ProprietorYes

Medical School CMSOtherGraduated 1994

Enumeration DateJanuary 16, 2007

Last NPPES UpdateApril 12, 2017

✔ NPI 1992856785 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · RheumatologyAllopathic & Osteopathic Physicians

Taxonomy Code207RR0500X

Licenses✔ Licensed in DE · CI0006778✔ Licensed in MD · D0078900

Definition

An internist who treats diseases of joints, muscle, bones and tendons. This specialist diagnoses and treats arthritis, back pain, muscle strains, common athletic injuries and collagen diseases.

1350 MIDDLEFORD RD, Seaford, DE 19973

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Other Identifiers 3

Other196158YC36Ptan

Medicaid1000021656DE

Medicare UPINH81553

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from NH Healthy Families, Ambetter from Sunflower Health Plan, Ambetter Health and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Ivonne Herrera Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID1254473820

PECOS Enrollment IDI20150414000945

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

Medicare enrollment records show Ivonne Herrera reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Arthritis & Osteoporosis Center LLC

0.1 mi

Rheumatology

1350 MIDDLEFORD RD, SUITE 502
Seaford, DE 19973

Reassigned Medicare billing, Delaware and Maryland enrollments
2 clinicians in this Medicare group

NPI 1124334123 (302) 628-8300

Tidalhealth Specialty Care, LLC

20 mi

Medical Specialty

100 E CARROLL ST
Salisbury, MD 21801

Reassigned Medicare billing, Maryland enrollment
531 clinicians in this Medicare group

NPI 1619504735 (410) 546-6400

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 25

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Injection, tocilizumab, 1 mg J3262

Tocilizumab is a medication administered via injection. It's used to treat certain conditions like rheumatoid arthritis by reducing inflammation in the body. It works by blocking a substance in the body that leads to inflammation.

61,060 services18 patients

Injection, certolizumab pegol, 1 mg (code may be used for medicare when drug administered under the direct supervision of a physician, not for use when drug is self administered) J0717

Certolizumab pegol is a medication injected under a doctor's supervision. It's used to treat certain inflammatory conditions like rheumatoid arthritis. The injection helps reduce symptoms like pain and swelling. Note that this drug isn't for self-administration.

53,200 services17 patients

Injection, denosumab, 1 mg J0897

Denosumab is a medication given via injection to strengthen your bones. It works by slowing down the cells that break down bone, improving bone density and reducing the risk of fractures. It's often used for osteoporosis treatment.

42,180 services449 patients

Injection, romosozumab-aqqg, 1 mg J3111

Romosozumab-aqqg is a medication given by injection to treat osteoporosis in patients at high risk for fractures. It works by increasing bone mass and strength, reducing the risk of fractures.

20,580 services21 patients

Injection, golimumab, 1 mg, for intravenous use J1602

Golimumab is a medication given through an IV (a small tube in your vein). It helps to reduce inflammation and pain by blocking a protein in your body that causes inflammation. It's often used to treat conditions like rheumatoid arthritis, psoriatic arthritis, and ankylosing spondylitis.

14,750 services20 patients

Injection, abatacept, 10 mg (code may be used for medicare when drug administered under the direct supervision of a physician, not for use when drug is self administered) J0129

Abatacept is a medication administered via injection under a doctor's supervision. It's used to treat conditions like rheumatoid arthritis by moderating the immune system. This code applies when the doctor administers the drug, not for self-administration.

8,825 services13 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

2,010 services1,086 patients

Administration of non-hormonal anti-neoplastic chemotherapy under skin or into muscle 96401

This procedure involves giving anti-cancer drugs, which don't contain hormones, into the muscle or under the skin. These drugs help to stop the growth of cancer cells. The process is usually quick and done by a healthcare professional.

1,171 services488 patients

Injection, triamcinolone acetonide, not otherwise specified, 10 mg J3301

Triamcinolone acetonide is a medication used to reduce inflammation in the body. It's given as a 10 mg injection for conditions like allergies, arthritis, or skin problems. The injection helps to decrease swelling, redness, and itching.

1,040 services162 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

744 services461 patients

Administration of chemotherapy into vein, 1 hour or less 96413

Chemotherapy is a treatment that uses drugs to destroy cancer cells. When administered into a vein, it's often through an IV. This procedure usually lasts 1 hour or less. You may feel a slight pinch as the needle is inserted, but it's generally painless.

427 services75 patients

Aspiration and/or injection of fluid from large joint 20610

This procedure involves using a needle to remove (aspiration) or introduce (injection) fluid into a large joint like the knee or hip. It can help diagnose conditions, relieve discomfort, or deliver medication directly to the joint.

161 services105 patients

Injection, zoledronic acid, 1 mg J3489

Zoledronic acid is a medication given via injection to strengthen bones. It's often used in patients with osteoporosis or certain types of cancer. The injection helps reduce the risk of fractures and other bone complications.

150 services30 patients

Injection of additional new drug or substance into vein 96375

This procedure involves introducing a new medication or substance into your bloodstream via a vein. It's typically done using a small needle. The substance can help treat various conditions or assist in diagnostic procedures. It's generally safe and monitored by professionals.

141 services22 patients

New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203

This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.

137 services137 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

99 services99 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

89 services71 patients

Injection, diphenhydramine hcl, up to 50 mg J1200

Diphenhydramine HCL injection is a medicine given to alleviate symptoms of allergies, colds, or hay fever. It can also help with motion sickness and certain symptoms of Parkinson's disease. Up to 50 mg may be administered depending on your condition.

50 services13 patients

New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205

This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.

36 services36 patients

Injection of drug or substance under skin or into muscle 96372

This procedure involves administering medication directly under the skin or into a muscle. A small needle is used to inject the drug, allowing it to be absorbed quickly into the bloodstream. It's a common method for delivering a variety of medications.

31 services17 patients

Infusion into a vein for therapy, prevention, or diagnosis, 1 hour or less 96365

This is a procedure where a medical professional inserts a small tube into your vein to deliver medication, nutrients, or fluids directly into your bloodstream. This can be for treatment, prevention, or diagnosis. The process typically takes less than an hour.

30 services30 patients

Injection, methylprednisolone sodium succinate, up to 40 mg J2920

Methylprednisolone sodium succinate is a corticosteroid medication, administered via injection. It helps reduce inflammation and immune responses. It's often used to treat conditions like arthritis, allergies, or skin diseases. The dosage is up to 40 mg.

29 services17 patients

Administration of chemotherapy into vein, each additional hour 96415

Chemotherapy is a treatment method that uses drugs to destroy cancer cells. The drugs are administered into a vein, usually in the arm. Each additional hour of chemotherapy allows for more of the medication to enter your bloodstream to fight against the cancer cells.

28 services13 patients

Aspiration and/or injection of fluid from small joint 20600

This procedure involves inserting a thin needle into a small joint to remove (aspirate) or inject fluid. It can help diagnose conditions, relieve discomfort, or administer medication directly into the joint. It's generally safe with minimal discomfort.

27 services22 patients

Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 10 minutes 99307

A follow-up nursing facility visit per day typically lasts about 10 minutes. This service involves a healthcare professional checking on your health status, answering any questions you may have, and monitoring your progress. This routine check ensures your recovery is on track and any concerns are addressed promptly.

15 services15 patients

Hospital Affiliations CMS Care Compare 3

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Tidalhealth Peninsula Regional, Inc

Acute Care Hospitals · Salisbury, MD

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number210019

Location100 East Carroll AvenueSalisbury, MD 21801 · Wicomico County

Emergency services Birthing friendly

Atlantic General Hospital

Acute Care Hospitals · Berlin, MD

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number210061

Location9733 Healthway DriveBerlin, MD 21811 · Worcester County

Emergency services

Riverside Shore Memorial Hospital

Acute Care Hospitals · Onancock, VA

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number490037

Location20480 Market StreetOnancock, VA 23417 · Accomack County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 19973 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$131.15 typical visit price

range $57.12 – $173.08

Typical copayment $32.78 (range $14.28 – $43.27)

Most-billed visit code 99204

Established Patient

$100.68 typical visit price

range $18.36 – $141.05

Typical copayment $25.17 (range $4.59 – $35.26)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

95.23/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored as part of a group practice

Quality

100

Improvement Activities

Cost

84.11

Other Providers at the Same Location NPPES 4

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

ARTHRITIS & OSTEOPOROSIS CENTER LLC

Internal Medicine (Rheumatology)

1350 MIDDLEFORD RD, SUITE 502
SEAFORD, DE 19973

Sussex County (302) 628-8300

DELMAR MEDICAL CENTER PA

Internal Medicine

1350 MIDDLEFORD RD, SUITE 501
SEAFORD, DE 19973

Sussex County (302) 628-4370

ORTHOPAEDIC & NEURO IMAGING LLC

Radiology (Diagnostic Radiology)

1350 MIDDLEFORD RD
SEAFORD, DE 19973

Sussex County (302) 628-7655

DARIUS S SYPEK MD

Internal Medicine

1350 MIDDLEFORD RD, STE 501
SEAFORD, DE 19973

Sussex County (302) 628-4370

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Ivonne Herrera's NPI number?

The NPI number for Ivonne Herrera is 1992856785. It was assigned to this individual provider in the NPPES registry on January 16, 2007.

Where is Ivonne Herrera located?

Ivonne Herrera practices at 1350 Middleford Rd Suite 502, Seaford, DE 19973. The listed phone number is (302) 628-8300.

What is Ivonne Herrera's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Rheumatology, with taxonomy code 207RR0500X.

Is Ivonne Herrera enrolled in Medicare?

Yes. Ivonne Herrera is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Ivonne Herrera's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Ivonne Herrera reassigns Medicare benefits to 2 organizations: Arthritis & Osteoporosis Center LLC (Seaford, DE) and Tidalhealth Specialty Care, LLC (Salisbury, MD). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Ivonne Herrera's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Ivonne Herrera accept?

Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from NH Healthy Families, Ambetter from Sunflower Health Plan and AmeriHealth Caritas Next and 1 other insurer list Ivonne Herrera as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Ivonne Herrera affiliated with any hospitals?

According to CMS data, Ivonne Herrera is affiliated with Tidalhealth Peninsula Regional, Inc, Atlantic General Hospital and Riverside Shore Memorial Hospital.

When was this NPI record last updated?

The NPPES record for Ivonne Herrera was last updated on April 12, 2017. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.