NPI registry status
Active
2026 NPPES data Acute Care Nurse Practitioner NPI 1538418918 NP-C
Verify on CMS → Tiffany Tullis, NP-C
Acute Care Nurse Practitioner in Dover, 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 24,697 in Acute Care Nurse Practitioner, 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
435
Medicare Part D claims · 122 beneficiaries · Acute Care Nurse Practitioner avg: 576
Generic prescribing
89%
generic claims · 11% 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
Tiffany Tullis, NP-C filed 435 Medicare Part D claims in 2023 as a Acute Care Nurse Practitioner in Dover, Delaware, prescribing 89% generic.
- 435
- Part D claims, 2023
- 89%
- generic prescribing
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.
Tiffany Tullis, NP-C's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
435 Top 38% higher than 62% 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
What does the federal data show about Tiffany Tullis, NP-C?
Quality data not reportedPrimary specialty
Acute Care Nurse Practitioner
Medicare Part D claims
435 24% vs specialty avg
Specialty distribution in Delaware
How Acute Care Nurse Practitioner 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 Acute Care Nurse Practitioner. 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).
Tiffany Tullis, NP-C appears in the CMS NPPES registry as a Acute Care Nurse Practitioner provider holding NP-C credentials at 640 SOUTH STATE STREET, Dover, DE, 19901, with a listed phone of (302) 674-4700. NPI 1538418918 was issued on 08/31/2012.
Medicare Part D records for calendar year 2023 show 435 prescription claims written by this provider, covering 122 Medicare beneficiaries and totaling roughly $42K in drug spend, split 11% brand-name and 89% generic by claim count, with an opioid prescribing rate of 26.2%.
Acute Care Nurse Practitioner is a mid-sized specialty nationwide, with 24,697 enrolled providers across 53 states and an average of 576 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 | 1538418918 |
|---|---|
| Specialty | Acute Care Nurse Practitioner |
| Credentials | NP-C |
| Gender | Female |
| NPI Issued | 08/31/2012 |
Hospital and facility affiliations
Facilities where Tiffany Tullis, NP-C 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.
Delaware Hospice, Inc.
Newark, 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 · Typical
Tiffany Tullis, NP-C - brand share 11.0%
Acute Care Nurse Practitioner average
11% brand-name claims vs 89% generic, on 435 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.
435
Total Claims
$42K
Total Drug Cost
122
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 533
- Total Day Supply
- 11,716
- Brand vs Generic
- 11% brand / 89% generic
- Brand Drug Cost
- $27K
- Generic Drug Cost
- $14K
- Opioid Claims
- 114 (26.2% rate)
- Antibiotic Claims
- 39
Patient Demographics
- Average Patient Age
- 81.7 years
- Avg HCC Risk Score
- 2.43
- Gender Split
- 66% female / 34% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Tiffany Tullis, NP-C prescribes most
Top Medicare Part D drugs by claim count, 2023
- Lorazepam
Lorazepam
34 claims
- Oxycodone Hcl
Oxycodone Hcl
30 claims
- Methadone Hcl
Methadone Hcl
29 claims
- Trazodone Hcl
Trazodone Hcl
25 claims
- Fentanyl
Fentanyl
21 claims
- Quetiapine Fumarate
Quetiapine Fumarate
15 claims
- Levothyroxine Sodium 13
Levothyroxine Sodium
13 claims
- Irbesartan 12
Irbesartan
12 claims
| Drug | Claims |
|---|---|
| Lorazepam | 34 |
| Oxycodone Hcl | 30 |
| Methadone Hcl | 29 |
| Trazodone Hcl | 25 |
| Fentanyl | 21 |
| Quetiapine Fumarate | 15 |
| Levothyroxine Sodium | 13 |
| Irbesartan | 12 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Acute Care Nurse Practitioner Overview
How Tiffany Tullis, NP-C fits within the Acute Care Nurse Practitioner landscape nationally.
24,697
Acute Care Nurse Practitioner Providers in US
53
States with Acute Care Nurse Practitioner
576
Avg Claims per Provider
Tiffany Tullis, NP-C's 435 claims are below the specialty average of 576.
Nearby Acute Care Nurse Practitioner Providers in Delaware
Other clinicians with the same primary specialty enrolled in Delaware, drawn from the same CMS NPPES roster as Tullis.
Dr. Erica Aiken
APRN, AGACNP-BC
Newark, DE
Dr. Constanza Bridges
MSN,RN-BC,AGACNP-BC
Wilmington, DE
Dr. Tricia Delnay
ACNP-BC, DNP
Dover, DE
Dr. Ashley Evans
ADULT GERONTOLOGY NP
Newark, DE
Dr. Matthew Franklin
AGACNP
Newark, DE
Compare Acute Care Nurse Practitioner 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 Acute Care Nurse Practitioner 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 Tiffany Tullis, NP-C's specialty? ▼
Tiffany Tullis, NP-C specializes in Acute Care Nurse Practitioner and practices in Dover, Delaware. Credentials: NP-C.
How much does Tiffany Tullis, NP-C prescribe under Medicare Part D? ▼
In 2023, Tiffany Tullis, NP-C wrote 435 Medicare Part D claims totaling $42K in drug costs for 122 beneficiaries.
Where is Tiffany Tullis, NP-C located? ▼
Tiffany Tullis, NP-C is located at 640 SOUTH STATE STREET, Dover, DE, 19901. Phone: (302) 674-4700.
What is Tiffany Tullis, NP-C's NPI number? ▼
Tiffany Tullis, NP-C's National Provider Identifier (NPI) is 1538418918, issued on 08/31/2012.
Does Tiffany Tullis, NP-C prescribe more brand-name or generic drugs? ▼
Tiffany Tullis, NP-C's prescribing is 11% brand-name and 89% generic drugs by claim count, with $27K in brand drug costs.
Does Tiffany Tullis, NP-C prescribe opioids? ▼
Yes, Tiffany Tullis, NP-C had 114 opioid claims in 2023 with an opioid prescribing rate of 26.2%.
How many Acute Care Nurse Practitioner providers are there in the US? ▼
There are 24,697 Acute Care Nurse Practitioner providers across 53 states in the US. The average Acute Care Nurse Practitioner provider writes 576 Medicare Part D claims per year.
What drugs does Tiffany Tullis, NP-C prescribe most often? ▼
Based on 2023 Medicare Part D data, Tiffany Tullis, NP-C's most frequently prescribed drugs include Lorazepam, Oxycodone Hcl, Methadone Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Tiffany Tullis, NP-C accept Medicare? ▼
Tiffany Tullis, NP-C appears in CMS Medicare data with 435 Part D claims and 122 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Tiffany Tullis, NP-C's credentials? ▼
Tiffany Tullis, NP-C's NPI is 1538418918 with credentials NP-C. 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 2026.