DR. DEAN L MITTMAN MD
NPI 1043359292
Dermatology in Rehoboth Beach, DE

Q: What is Dean Mittman's NPI number?

The NPI number for Dean Mittman is 1043359292. It was assigned to this individual provider in the NPPES registry on February 5, 2007.

Q: What is Dean Mittman's specialty?

The primary specialty registered for this NPI is Dermatology with taxonomy code 207N00000X.

Q: When was this NPI record last updated?

The NPPES record for Dean Mittman was last updated on June 10, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.

Active since February 05, 2007PECOS EnrolledAccepts Medicare Assignment

18947 JOHN J WILLIAMS HWY UNIT 201, REHOBOTH BEACH, DE 19971(302) 645-4801(888) 987-4173 Get Directions Write a Review

NPPES record last updated: June 10, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

On this page

About Dr. Dean L Mittman Md NPPES

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

DR. DEAN L MITTMAN MD (NPI 1043359292) is an individual dermatology provider in Rehoboth Beach, Delaware, licensed in Delaware (C1-0028187) and active in the NPI registry since February 2007. He is enrolled in Medicare PECOS, is affiliated with Mercy Hospital Springfield, and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1043359292

Entity TypeIndividualMale

Primary Taxonomy207N00000X

Provider Legal NameDR. DEAN L MITTMANCredential: MD

Location Address18947 JOHN J WILLIAMS HWY UNIT 201Rehoboth Beach, DE 19971-4476

Mailing Address1515 Savannah RdLewes, DE 19958-1675 · (302) 645-3499 · Fax (302) 644-4830

Phone(302) 645-4801

Fax(888) 987-4173

Sole ProprietorNo

Medical School CMSDrexel University College Of MedicineGraduated 1986

Enumeration DateFebruary 5, 2007

Last NPPES UpdateJune 10, 2025

NPPES CertifiedJune 10, 2025

✔ NPI 1043359292 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyDermatologyAllopathic & Osteopathic Physicians

Taxonomy Code207N00000X

Licenses✔ Licensed in DE · C1-0028187✔ Licensed in MO · 111705

Definition

A dermatologist is trained to diagnose and treat pediatric and adult patients with benign and malignant disorders of the skin, mouth, external genitalia, hair and nails, as well as a number of sexually transmitted diseases. The dermatologist has had additional training and experience in the diagnosis and treatment of skin cancers, melanomas, moles and other tumors of the skin, the management of contact dermatitis and other allergic and nonallergic skin disorders, and in the recognition of the skin manifestations of systemic (including internal malignancy) and infectious diseases. Dermatologists have special training in dermatopathology and in the surgical techniques used in dermatology. They also have expertise in the management of cosmetic disorders of the skin such as hair loss and scars and the skin changes associated with aging.

18947 JOHN J WILLIAMS HWY UNIT 201, Rehoboth Beach, DE 19971

Open in Google Maps ↗

Secondary Practice Locations 2

Location 12115 S Fremont Ave, SUITE 2100Springfield, MO 65804-2239 · Phone (417) 820-7720 · Fax (417) 820-7223

Location 2424 Savannah RdLewes, DE 19958-1462 · Phone (302) 645-4801 · Fax (888) 987-4173

Other Identifiers 4

Other110426MO · Mo Medicare

Other81287AR · Ark Blue Shield

Medicaid208573014MO

Medicaid142569001AR

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Home State Health, Ambetter from NH Healthy Families, Ambetter from Sunflower Health Plan and more.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. Dean L Mittman 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 ID1850424318

PECOS Enrollment IDI20250801004089

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 21

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.

Destruction of precancer skin growth, 2-14 growths 17003

This procedure involves removing 2-14 precancerous skin growths. The growths are treated to prevent them from potentially developing into skin cancer. The process is safe, with minimal discomfort, and promotes healthier skin.

1,527 services306 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.

1,160 services872 patients

Destruction of skin growth, 1-14 growths 17110

"Destruction of skin growth" refers to a procedure where 1-14 abnormal skin growths are removed. This is done using methods such as freezing, burning, or laser therapy. It helps prevent the growth from causing discomfort or turning into a more serious condition.

676 services560 patients

Destruction of precancer skin growth, 1 growth 17000

"Destruction of precancer skin growth" is a procedure that eliminates a single precancerous skin growth. This is done to prevent it from developing into skin cancer. The growth may be removed using various methods such as cryotherapy (freezing), laser therapy, or topical medications.

578 services446 patients

Biopsy of related skin growth, first growth 11102

A biopsy of a skin growth involves taking a small sample of the growth to examine it under a microscope. This helps determine if the growth is harmful. The procedure is typically quick, with minimal discomfort. It's a crucial step in ensuring your skin's health.

263 services236 patients

Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212

This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.

121 services111 patients

Destruction of skin growth, 15 or more growths 17111

"Destruction of skin growth" refers to a procedure where unwanted skin growths, such as warts or moles, are removed. In this case, 15 or more growths are treated. Techniques may include freezing, burning, or laser therapy. It's a safe, quick process to improve skin health.

86 services76 patients

Biopsy of related skin growth, each additional growth 11103

A biopsy of related skin growth is a procedure where a small piece of skin growth is removed for testing. If additional growths are identified, they may also be biopsied. This helps in diagnosing skin conditions and planning appropriate treatment.

80 services60 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.

78 services69 patients

Simple or single drainage of skin abscess 10060

A simple or single drainage of skin abscess is a procedure to remove pus from a skin infection. A small cut is made on the abscess, the pus is drained out, and the area is cleaned. This helps to reduce pain, speed up recovery, and prevent the spread of infection.

65 services63 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.

39 services39 patients

Destruction of precancer skin growth, 15 or more growths 17004

This procedure involves removing 15 or more precancerous skin growths to prevent them from developing into cancer. It's done using various methods like freezing, creams, or minor surgery. The goal is to protect your health by stopping cancer before it starts.

38 services32 patients

Destruction of cancer skin growth of face, ears, eyelids, nose, lips, or mouth, 1.1-2.0 cm 17282

This procedure involves the removal of a cancerous skin growth on the face, ears, eyelids, nose, lips, or mouth that measures between 1.1 to 2.0 cm. It's done to prevent the spread of cancer and improve health.

33 services30 patients

Complicated or multiple drainage of skin abscess 10061

This procedure involves draining one or more skin abscesses, which are pockets of pus that form due to an infection. The process includes making a small cut on the abscess, removing the pus, and cleaning the area to promote healing and prevent further infection.

32 services29 patients

Destruction of cancer skin growth of trunk, arms, or legs, 1.1-2.0 cm 17262

This procedure involves removing a cancerous skin growth on the trunk, arms, or legs that is between 1.1 and 2.0 cm in size. The growth is destroyed using methods like surgery, laser, or freezing, aiming to eliminate cancer and prevent its spread.

28 services25 patients

Biopsy of ear 69100

A biopsy of the ear is a medical procedure where a small sample of tissue is taken from your ear for examination. This helps doctors diagnose any abnormalities or diseases. It's a simple process, usually done under local anesthesia, and has minimal risks.

22 services22 patients

Destruction of cancer skin growth of trunk, arms, or legs, 2.1-3.0 cm 17263

This procedure targets and eliminates a cancerous skin growth between 2.1 and 3.0 cm on your trunk, arms, or legs. It's done by applying specific treatments like heat, cold, or medicated creams to destroy the cancer cells, preventing them from spreading.

21 services19 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.

20 services11 patients

Destruction of cancer skin growth of scalp, neck, hands, feet, or genitals, 1.1-2.0 cm 17272

This procedure involves the removal of a cancerous skin growth measuring 1.1-2.0 cm, located on the scalp, neck, hands, or feet. The process may involve techniques like surgery, laser, or cryotherapy. The aim is to eliminate the cancer cells and prevent further spread.

15 services15 patients

Injection into skin growth, 1-7 growths 11900

This procedure involves injecting medication into 1-7 skin growths. The medication helps to reduce the size of the growths or completely eliminate them. It's a simple, quick, and usually painless process performed by a medical professional.

13 services13 patients

New patient office or other outpatient visit with straightforward medical decision making, if using time, 15 minutes or more 99202

This service involves an initial visit to the doctor's office or other outpatient setting. It typically lasts between 15-29 minutes. The doctor will review your medical history, conduct a physical examination, and discuss your health concerns. It's a chance to establish your health baseline and address any immediate medical issues.

12 services12 patients

Hospital Affiliations CMS Care Compare

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

Mercy Hospital Springfield

Acute Care Hospitals · Springfield, MO

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number260065

Location1235 E CherokeeSpringfield, MO 65804 · Greene County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 19971 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

$71.19 typical visit price

range $18.36 – $141.05

Typical copayment $17.79 (range $4.59 – $35.26)

Most-billed visit code 99213

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

Leave this field empty

Other Providers at the Same Location NPPES 3

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

CASSIDY M HILL PA

Physician Assistant

18947 JOHN J WILLIAMS HWY UNIT 201
REHOBOTH BEACH, DE 19971

Sussex County (302) 645-4801

DR. OGECHUKWU NDUM M.D.

Allergy & Immunology (Allergy)

18947 JOHN J WILLIAMS HWY UNIT 201
REHOBOTH BEACH, DE 19971

Sussex County (302) 703-3393

PATRICK SEAN DUFFY PA

Physician Assistant

18947 JOHN J WILLIAMS HWY UNIT 201
REHOBOTH BEACH, DE 19971

Sussex County (302) 645-4801

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 Dean Mittman's NPI number?

The NPI number for Dean Mittman is 1043359292. It was assigned to this individual provider in the NPPES registry on February 5, 2007.

Where is Dean Mittman located?

Dean Mittman practices at 18947 John J Williams Hwy Unit 201, Rehoboth Beach, DE 19971. The listed phone number is (302) 645-4801.

What is Dean Mittman's specialty?

The primary specialty registered for this NPI is Dermatology with taxonomy code 207N00000X.

Is Dean Mittman enrolled in Medicare?

Yes. Dean Mittman 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 Dean Mittman accept?

Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Home State Health, Ambetter from NH Healthy Families and Ambetter from Sunflower Health Plan and 2 other insurers list Dean Mittman 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 Dean Mittman affiliated with any hospitals?

According to CMS data, Dean Mittman is affiliated with Mercy Hospital Springfield.

When was this NPI record last updated?

The NPPES record for Dean Mittman was last updated on June 10, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.