NPI registry status
Active
2026 NPPES data Dermatology Physician NPI 1043359292 MD
Verify on CMS → Dean Mittman, MD
Dermatology Physician in Rehoboth Beach, Delaware.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 14,610 in Dermatology Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
2K
Medicare Part D claims · 599 beneficiaries · Dermatology Physician avg: 729
Generic prescribing
94%
generic claims · 6% brand-name · higher generic rates reduce patient out-of-pocket costs
Source: CMS Medicare Part D Prescriber Public Use File, 2023
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Dean Mittman, MD filed 1,540 Medicare Part D claims in 2023 as a Dermatology Physician in Rehoboth Beach, Delaware, prescribing 94% generic.
- 2K
- Part D claims, 2023
- 94%
- generic prescribing
- Likely
- board-certified (heuristic)
Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) - no proprietary rating or editorial opinion is applied.
Dean Mittman, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
1,540 Top 19% higher than 81% of 1,370,886 prescribers
Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source CMS Medicare Part D Prescriber Public Use File · 2023
✓
Board certification likely (heuristic, not verified)
Dean Mittman, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation - signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Dean Mittman, MD?
Quality data not reportedPrimary specialty
Dermatology Physician
Medicare Part D claims
1,540 111% vs specialty avg
Specialty distribution in Delaware
How Dermatology Physician compares to other specialties among Delaware providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Dermatology Physician. Verify directly:
How MIPS and board certification work
The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.
Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).
Dean Mittman, MD appears in the CMS NPPES registry as a Dermatology Physician provider holding MD credentials at 18947 JOHN J WILLIAMS HWY UNIT 201, Rehoboth Beach, DE, 19971, with a listed phone of (302) 645-4801. NPI 1043359292 was issued on 02/05/2007.
Medicare Part D records for calendar year 2023 show 1,540 prescription claims written by this provider, covering 599 Medicare beneficiaries and totaling roughly $175K in drug spend, split 6% brand-name and 94% generic by claim count.
Dermatology Physician is a mid-sized specialty nationwide, with 14,610 enrolled providers across 53 states and an average of 729 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline.
Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist, always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.
Practice Address
Provider Details
| NPI | 1043359292 |
|---|---|
| Specialty | Dermatology Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 02/05/2007 |
Hospital and facility affiliations
Facilities where Dean Mittman, MD bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" - a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.
Beebe Physician Network Inc.
Rehoboth Beach, DE
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
Brand vs generic prescribing mix · Generic-heavy
Dean Mittman, MD - brand share 6.0%
Dermatology Physician average
6% brand-name claims vs 94% generic, on 1,540 2023 Medicare Part D claims.
The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
1,540
Total Claims
$175K
Total Drug Cost
599
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,720
- Total Day Supply
- 40,255
- Brand vs Generic
- 6% brand / 94% generic
- Brand Drug Cost
- $138K
- Generic Drug Cost
- $37K
- Antibiotic Claims
- 118
Patient Demographics
- Average Patient Age
- 76.3 years
- Avg HCC Risk Score
- 1.30
- Gender Split
- 43% female / 57% male
- Age Distribution
- <65: 27, 65-74: 213, 75-84: 273, 85+: 86
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Dean Mittman, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Ammonium Lactate
Ammonium Lactate
216 claims
- Mupirocin
Mupirocin
208 claims
- Triamcinolone Acet…
Triamcinolone Acetonide
143 claims
- Ketoconazole
Ketoconazole
118 claims
- Hydrocortisone 80
Hydrocortisone
80 claims
- Mometasone Furoate 77
Mometasone Furoate
77 claims
- Doxycycline Hyclate 71
Doxycycline Hyclate
71 claims
- Valacyclovir 58
Valacyclovir
58 claims
| Drug | Claims |
|---|---|
| Ammonium Lactate | 216 |
| Mupirocin | 208 |
| Triamcinolone Acetonide | 143 |
| Ketoconazole | 118 |
| Hydrocortisone | 80 |
| Mometasone Furoate | 77 |
| Doxycycline Hyclate | 71 |
| Valacyclovir Valacyclovir Hcl | 58 |
| Clindamycin Phosphate | 57 |
| Betamethasone Diprop Augmented Betamethasone/Propylene Glyc | 45 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Dermatology Physician Overview
How Dean Mittman, MD fits within the Dermatology Physician landscape nationally.
14,610
Dermatology Physician Providers in US
53
States with Dermatology Physician
729
Avg Claims per Provider
Dean Mittman, MD's 1,540 claims are above the specialty average of 729.
Nearby Dermatology Physician Providers in Delaware
Other clinicians with the same primary specialty enrolled in Delaware, drawn from the same CMS NPPES roster as Mittman.
Dr. Hannah Anderson
MD
Newark, DE
Dr. Joseph Andrews
M.D.
Dover, DE
Dr. Curtis Asbury
M.D.
Selbyville, DE
Dr. Richard Bonder
M.D.
Wilmington, DE
Dr. Kiera Booth
MD
Newark, DE
Compare Dermatology Physician nationally: see state-by-state distribution →
Before you book an appointment
Use this federal record as your verification checklist, not as a recommendation.
- Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
- Check the active license and any disciplinary history with the Delaware medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Dermatology Physician peer on Medicare volume and prescribing patterns. Compare providers
Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.
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Frequently Asked Questions
What is Dean Mittman, MD's specialty? ▼
Dean Mittman, MD specializes in Dermatology Physician and practices in Rehoboth Beach, Delaware. Credentials: MD.
How much does Dean Mittman, MD prescribe under Medicare Part D? ▼
In 2023, Dean Mittman, MD wrote 1,540 Medicare Part D claims totaling $175K in drug costs for 599 beneficiaries.
Where is Dean Mittman, MD located? ▼
Dean Mittman, MD is located at 18947 JOHN J WILLIAMS HWY UNIT 201, Rehoboth Beach, DE, 19971. Phone: (302) 645-4801.
What is Dean Mittman, MD's NPI number? ▼
Dean Mittman, MD's National Provider Identifier (NPI) is 1043359292, issued on 02/05/2007.
Does Dean Mittman, MD prescribe more brand-name or generic drugs? ▼
Dean Mittman, MD's prescribing is 6% brand-name and 94% generic drugs by claim count, with $138K in brand drug costs.
How many Dermatology Physician providers are there in the US? ▼
There are 14,610 Dermatology Physician providers across 53 states in the US. The average Dermatology Physician provider writes 729 Medicare Part D claims per year.
What drugs does Dean Mittman, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Dean Mittman, MD's most frequently prescribed drugs include Ammonium Lactate, Mupirocin, Triamcinolone Acetonide. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Dean Mittman, MD accept Medicare? ▼
Dean Mittman, MD appears in CMS Medicare data with 1,540 Part D claims and 599 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Dean Mittman, MD's credentials? ▼
Dean Mittman, MD's NPI is 1043359292 with credentials MD. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.
Data Sources
View source datasets and methodology notes
- Provider Directory
- CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
- Specialty Classification
- NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
- Prescribing Data
- CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
- Limitations
- Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.
See our complete data methodology for details on how we collect and process government data.
Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).
Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology
Compiled from official public sources by the PlainDoctor editorial team.