MS. DIAMOND MICHELLE MICIELLI FNP
NPI 1184013757
Nurse Practitioner in Milton, DE

Active since January 20, 2015PECOS EnrolledAccepts Medicare Assignment
23900 MILTON ELLENDALE HWY, MILTON, DE 19968(302) 684-2033(888) 987-4302 Get Directions Write a Review

NPPES record last updated: March 19, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Mar 19, 2026, Sep 9, 2024, Mar 9, 2023 and 2 more (5 updates tracked since 2019).

About Ms. Diamond Michelle Micielli Fnp NPPES

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

MS. DIAMOND MICHELLE MICIELLI FNP (NPI 1184013757) is an individual nurse practitioner in Milton, Delaware, licensed in Delaware (LG-0001245) and active in the NPI registry since January 2015. She is enrolled in Medicare PECOS, maintains 13 additional practice locations, and is a graduate of Other (2019).

NPPES Registry Identity

NPI1184013757
Entity TypeIndividualFemale
Primary Taxonomy363L00000X
Provider Legal NameMS. DIAMOND MICHELLE MICIELLICredential: FNP
Location Address23900 MILTON ELLENDALE HWYMilton, DE 19968-2714
Mailing Address1515 Savannah RdLewes, DE 19958-1675 · (302) 645-3499 · Fax (302) 644-4830
Fax(888) 987-4302
Sole ProprietorNo
Medical School CMSOtherGraduated 2019
Enumeration DateJanuary 20, 2015
Last NPPES UpdateMarch 19, 20265 updates tracked since enumeration
NPPES CertifiedMarch 19, 2026
NPI 1184013757 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

Primary SpecialtyNurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363L00000X
License Licensed in DE · LG-0001245
Definition
(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.
Also ListedRegistered NurseTaxonomy 163W00000X · License L1-0037509 (DE)
Also ListedNurse Practitioner · FamilyTaxonomy 363LF0000X · License LG-0001245 (DE)
23900 MILTON ELLENDALE HWY, Milton, DE 19968

Other Names 1

Former Name (1)Mrs. Diamond Michelle Brockbrader Rn

Secondary Practice Locations 13

Location 121635 Biden Ave Unit 101Georgetown, DE 19947-4575 · Phone (302) 856-9596 · Fax (888) 987-4164
Location 2100 Silicato Pkwy Ste 200Milford, DE 19963-1271 · Phone (302) 393-2056 · Fax (844) 560-2228
Location 336450 Tidal Rd Unit 2Selbyville, DE 19975-4596 · Phone (302) 291-6045 · Fax (833) 449-3867
Location 4424 Savannah RdLewes, DE 19958 · Phone (302) 645-3554
Location 528538 DuPont Blvd Unit 1Millsboro, DE 19966-4791 · Phone (302) 829-3294 · Fax (833) 314-0538
Location 61008 Kings HwyLewes, DE 19958-1932 · Phone (302) 291-6031 · Fax (833) 954-4028
Location 7232 Mitchell St Unit 301Millsboro, DE 19966-9412 · Phone (302) 316-4190 · Fax (844) 560-1009
Location 818947 John J Williams Hwy Unit 303Rehoboth Beach, DE 19971-4477 · Phone (302) 644-0690 · Fax (844) 242-4410
Location 936223 Farm Ln Ste 140Rehoboth Beach, DE 19971-1329 · Phone (302) 227-1268 · Fax (844) 242-4410
Location 1032550 Docs Pl Unit 2Millville, DE 19967-6975 · Phone (302) 539-4302 · Fax (888) 987-4513
Location 1112100 Black Swan Dr Ste 104Lewes, DE 19958-4991 · Phone (302) 645-1315 · Fax (833) 437-1399
Location 1217388 N Village Main Blvd Unit 21Lewes, DE 19958-7240 · Phone (302) 291-6050 · Fax (833) 450-5311
Location 1334445 King Street RowLewes, DE 19958-4787 · Phone (302) 645-2833 · Fax (844) 640-3955

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Ms. Diamond Michelle Micielli Fnp 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 ID3870827850
PECOS Enrollment IDI20190625002190
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.

Areas of Expertise CMS Part B claims 16

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.

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.
529 services316 patients
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit G0439
An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.
184 services184 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.
139 services107 patients
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 93000
An electrocardiogram (ECG) is a non-invasive test that records your heart's electrical activity. Using 12 leads attached to your body, it captures data to help identify heart conditions. A doctor interprets the results and provides a report.
69 services67 patients
Administration of influenza virus vaccine G0008
The administration of the influenza virus vaccine, also known as the flu shot, is a simple procedure to protect against the flu. A healthcare provider injects a small dose of the vaccine into your arm. This stimulates your immune system to produce antibodies, which will help your body fight off the flu if exposed.
43 services42 patients
Detection test by immunoassay with direct visual observation for influenza virus 87804
This is a test that identifies the influenza virus in your body. It works by using an immunoassay, a method that detects the presence of the virus through an immune response. The results are directly observable, making it a quick and efficient way to diagnose flu.
38 services18 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 19968 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
$88.37 typical visit price
range $57.12 – $173.08
Typical copayment $22.09 (range $14.28 – $43.27)
Most-billed visit code 99203
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.

Other Providers at the Same Location NPPES 5

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

Physician Assistant
23900 MILTON ELLENDALE HWY
MILTON, DE 19968
Internal Medicine
23900 MILTON ELLENDALE HWY
MILTON, DE 19968
Neurological Surgery
23900 MILTON ELLENDALE HWY
MILTON, DE 19968
Physician Assistant
23900 MILTON ELLENDALE HWY
MILTON, DE 19968
Family Medicine
23900 MILTON ELLENDALE HWY
MILTON, DE 19968

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 Diamond Micielli's NPI number?

The NPI number for Diamond Micielli is 1184013757. It was assigned to this individual provider in the NPPES registry on January 20, 2015. The provider is also known as Mrs. Diamond Michelle Brockbrader Rn.

Where is Diamond Micielli located?

Diamond Micielli practices at 23900 Milton Ellendale Hwy, Milton, DE 19968. The listed phone number is (302) 684-2033.

What is Diamond Micielli's specialty?

The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.

Is Diamond Micielli enrolled in Medicare?

Yes. Diamond Micielli 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.

What insurance does Diamond Micielli accept?

Health plans from AmeriHealth Caritas Next and Highmark Blue Cross Blue Shield Delaware list Diamond Micielli 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.

When was this NPI record last updated?

The NPPES record for Diamond Micielli was last updated on March 19, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 months 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.