DR. SHERIN IBRAHIM HOWETT DO
NPI 1114144516
Internal Medicine - Sleep Medicine in Millsboro, DE

Active since April 19, 2007PECOS EnrolledAccepts Medicare Assignment
90.39/100
CMS Quality Rating
28539 DUPONT BLVD, MILLSBORO, DE 19966(302) 648-2099(302) 648-2097 Get Directions Write a Review

NPPES record last updated: March 11, 2026. Verified against the NPPES registry weekly; last sync: July 19, 2026.

Record update history: Mar 11, 2026, May 2, 2022, Mar 2, 2022 (3 updates tracked since 2022).

About Dr. Sherin Ibrahim Howett Do NPPES

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

DR. SHERIN IBRAHIM HOWETT DO (NPI 1114144516) is an individual sleep medicine provider in Millsboro, Delaware, licensed in Delaware (C2-0009422) and active in the NPI registry since April 2007. She is enrolled in Medicare PECOS and is a graduate of New York College Of Osteo Medicine Of New York Institute Of Technology (2003).

NPPES Registry Identity

NPI1114144516
Entity TypeIndividualFemale
Primary Taxonomy207RS0012X
Provider Legal NameDR. SHERIN IBRAHIM HOWETTCredential: DO
Location Address28539 DUPONT BLVDMillsboro, DE 19966-4798
Mailing AddressPo Box 489Dagsboro, DE 19939-0489 · (302) 648-2099 · Fax (302) 648-2097
Fax(302) 648-2097
Sole ProprietorYes
Medical School CMSNew York College Of Osteo Medicine Of New York Institute Of TechnologyGraduated 2003
Enumeration DateApril 19, 2007
Last NPPES UpdateMarch 11, 20263 updates tracked since enumeration
NPPES CertifiedMarch 11, 2026
NPI 1114144516 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

Primary SpecialtyInternal Medicine · Sleep MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207RS0012X
License Licensed in DE · C2-0009422
Definition

An Internist who practices Sleep Medicine is certified in the subspecialty of sleep medicine and specializes in the clinical assessment, physiologic testing, diagnosis, management and prevention of sleep and circadian rhythm disorders. Sleep specialists treat patients of any age and use multidisciplinary approaches. Disorders managed by sleep specialists include, but are not limited to, sleep related breathing disorders, insomnia, hypersomnias, circadian rhythm sleep disorders, parasomnias and sleep related movement disorders.

Also ListedInternal MedicineTaxonomy 207R00000X · License C2-0009422 (DE)
Also ListedInternal Medicine · Critical Care MedicineTaxonomy 207RC0200X · License C2-0009422 (DE)
28539 DUPONT BLVD, Millsboro, DE 19966

Other Identifiers 1

Medicaid1144528308DE

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

Dr. Sherin Ibrahim Howett Do 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 ID1658441043
PECOS Enrollment IDI20110302000776
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 12

Services this provider delivered to Medicare fee-for-service patients, from the 2024 & 2026 CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Management using the results of remote vital sign monitoring per calendar month, first 20 minutes 99457
This service involves reviewing and managing your health data, which is remotely monitored and collected. Your vital signs like heart rate and blood pressure are tracked regularly throughout the month. The first 20 minutes of this data analysis per month is included in this service.
594 services352 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.
397 services281 patients
Telephone medical discussion with physician, 21-30 minutes 99443
This service involves a 21-30 minute phone conversation with a physician. It's a chance for you to discuss your health concerns, symptoms or treatment plans. It's similar to an in-person consultation, but conducted over the phone for your convenience and safety.
253 services184 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.
140 services35 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.
79 services79 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.
78 services78 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 19966 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.

90.39/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality87.7
Promoting Interoperability99
Improvement Activities40
Cost81.1

Reported Quality Measures

Breast Cancer Screening
32%286 patients2/55-star benchmark: 93%
Closing the Referral Loop: Receipt of Specialist Report
61%54 patients3/55-star benchmark: 87%
Colorectal Cancer Screening
29%700 patients2/55-star benchmark: 88%
Controlling High Blood Pressure
64%393 patients3/55-star benchmark: 91%
Diabetes: Eye Exam
11%187 patients1/55-star benchmark: 100%
Diabetes: Hemoglobin A1c (HbA1c) Poor Control (>9%)
Lower rates are better for this measure.
64%187 patients2/55-star benchmark: 91%
Documentation of Current Medications in the Medical Record
98%1,675 patients4/55-star benchmark: 100%
Falls: Screening for Future Fall Risk
18%505 patients1/55-star benchmark: 100%
HIV Screening
2%439 patients1/55-star benchmark: 60%
Preventive Care and Screening: Body Mass Index (BMI) Screening and Follow-Up Plan
93%878 patients4/55-star benchmark: 98%
Preventive Care and Screening: Screening for High Blood Pressure and Follow-Up Documented
23%693 patients2/55-star benchmark: 61%
Preventive Care and Screening: Tobacco Use: Screening and Cessation Intervention
Patients combinedPopulations: 96% · 804 patients
Patients screened: 98% · 804 patients
72%58 patients3/55-star benchmark: 100%
Provide Patients Electronic Access to Their Health Information
78%459 patients4/55-star benchmark: 100%
Statin Therapy for the Prevention and Treatment of Cardiovascular Disease
83%304 patients4/55-star benchmark: 91%
Use of High-Risk Medications in Older Adults
Lower rates are better for this measure.
Patients appropriateDiagnosis: 0% · 529 patients
Patients totalRate: 2% · 538 patients
2%538 patients4/55-star benchmark: 100%
Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

Referred Medical Equipment & Supplies CMS DME claims 16

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Tubing with integrated heating element for use with positive airway pressure device A4604
DME-Other DME · category DE001N
18 suppliers434 claims435 services$37.78 avg. paid by Medicare
Full face mask used with positive airway pressure device, each A7030
DME-Other DME · category DE001N
17 suppliers290 claims290 services$89.72 avg. paid by Medicare
Face mask interface, replacement for full face mask, each A7031
DME-Other DME · category DE001N
17 suppliers274 claims629 services$34.26 avg. paid by Medicare
Cushion for use on nasal mask interface, replacement only, each A7032
DME-Other DME · category DE001N
12 suppliers203 claims1,020 services$19.40 avg. paid by Medicare
Pillow for use on nasal cannula type interface, replacement only, pair A7033
DME-Other DME · category DE001N
13 suppliers93 claims476 services$14.91 avg. paid by Medicare
Nasal interface (mask or cannula type) used with positive airway pressure device, with or without head strap A7034
DME-Other DME · category DE001N
17 suppliers308 claims310 services$56.09 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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.

Internal Medicine
28539 DUPONT BLVD
MILLSBORO, DE 19966
Nurse Practitioner
28539 DUPONT BLVD
MILLSBORO, DE 19966
Nurse Practitioner
28539 DUPONT BLVD
MILLSBORO, DE 19966
Nurse Practitioner
28539 DUPONT BLVD
MILLSBORO, DE 19966

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1114144516, enumerated as an "individual" on April 19, 2007.

The provider is located at 28539 DUPONT BLVD MILLSBORO, DE 19966 and the phone number is (302) 648-2099.

Internal Medicine with taxonomy code 207RS0012X and a focus in Sleep Medicine.

The provider might be accepting Accepts: Ambetter from Home State Health, Ambetter from NH. Please consult your insurance carrier or call the provider to verify.