NPI registry status
Active
2026 NPPES data Critical Care Medicine Nurse Practitioner NPI 1003155623 NP
Verify on CMS → Geetanjali Chatterjee, NP
Critical Care Medicine Nurse Practitioner in Wilmington, 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 1,414 in Critical Care Medicine 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
3K
Medicare Part D claims · 150 beneficiaries · Critical Care Medicine Nurse Practitioner avg: 426
Generic prescribing
85%
generic claims · 14% brand-name · higher generic rates reduce patient out-of-pocket costs
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
Geetanjali Chatterjee, NP filed 3,288 Medicare Part D claims in 2023 as a Critical Care Medicine Nurse Practitioner in Wilmington, Delaware, prescribing 85% generic.
- 3K
- Part D claims, 2023
- 85%
- 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.
Geetanjali Chatterjee, NP's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
3,288 Top 11% higher than 89% 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 Geetanjali Chatterjee, NP?
Quality data not reportedPrimary specialty
Critical Care Medicine Nurse Practitioner
Medicare Part D claims
3,288 8× vs specialty avg
Specialty distribution in Delaware
How Critical Care Medicine 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 Critical Care Medicine 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).
Geetanjali Chatterjee, NP appears in the CMS NPPES registry as a Critical Care Medicine Nurse Practitioner provider holding NP credentials at 1400 N WASHINGTON ST STE 300, Wilmington, DE, 19801, with a listed phone of (302) 320-5700. NPI 1003155623 was issued on 02/01/2013.
Medicare Part D records for calendar year 2023 show 3,288 prescription claims written by this provider, covering 150 Medicare beneficiaries and totaling roughly $330K in drug spend, split 14% brand-name and 85% generic by claim count, with an opioid prescribing rate of 2.6%.
Critical Care Medicine Nurse Practitioner is a narrow specialty nationwide, with 1,414 enrolled providers across 50 states and an average of 426 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 | 1003155623 |
|---|---|
| Specialty | Critical Care Medicine Nurse Practitioner |
| Credentials | NP |
| Gender | Female |
| NPI Issued | 02/01/2013 |
Hospital and facility affiliations
Facilities where Geetanjali Chatterjee, NP 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.
Christiana Care Health Services 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
Geetanjali Chatterjee, NP - brand share 14.0%
Critical Care Medicine Nurse Practitioner average
14% brand-name claims vs 85% generic, on 3,288 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.
3,288
Total Claims
$330K
Total Drug Cost
150
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 5,570
- Total Day Supply
- 158,082
- Brand vs Generic
- 14% brand / 85% generic
- Brand Drug Cost
- $251K
- Generic Drug Cost
- $77K
- Opioid Claims
- 84 (2.6% rate)
- Antibiotic Claims
- 117
Patient Demographics
- Average Patient Age
- 77.7 years
- Avg HCC Risk Score
- 2.92
- Gender Split
- 69% female / 31% male
- Age Distribution
- <65: 21, 65-74: 28, 75-84: 50, 85+: 51
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Geetanjali Chatterjee, NP prescribes most
Top Medicare Part D drugs by claim count, 2023
- Furosemide
Furosemide
144 claims
- Atorvastatin Calcium
Atorvastatin Calcium
129 claims
- Amlodipine Besylate
Amlodipine Besylate
118 claims
- Omeprazole
Omeprazole
104 claims
- Gabapentin
Gabapentin
102 claims
- Levothyroxine Sodium
Levothyroxine Sodium
96 claims
- Trazodone Hcl
Trazodone Hcl
82 claims
- Potassium Chloride
Potassium Chloride
73 claims
| Drug | Claims |
|---|---|
| Furosemide | 144 |
| Atorvastatin Calcium | 129 |
| Amlodipine Besylate | 118 |
| Omeprazole | 104 |
| Gabapentin | 102 |
| Levothyroxine Sodium | 96 |
| Trazodone Hcl | 82 |
| Potassium Chloride | 73 |
| Duloxetine Hcl | 71 |
| Albuterol Sulfate Hfa Albuterol Sulfate | 55 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Critical Care Medicine Nurse Practitioner in DE →
All providers in Delaware →
Compare specialties →
Critical Care Medicine Nurse Practitioner Overview
How Geetanjali Chatterjee, NP fits within the Critical Care Medicine Nurse Practitioner landscape nationally.
1,414
Critical Care Medicine Nurse Practitioner Providers in US
50
States with Critical Care Medicine Nurse Practitioner
426
Avg Claims per Provider
Geetanjali Chatterjee, NP's 3,288 claims are above the specialty average of 426.
Nearby Critical Care Medicine Nurse Practitioner Providers in Delaware
Other clinicians with the same primary specialty enrolled in Delaware, drawn from the same CMS NPPES roster as Chatterjee.
Dr. Daniel Farmer
RN
Lewes, DE
Dr. Carol Hasse-Jungkurth
CRNP
Wilmington, DE
Dr. Jeanne McConnell
APRN
Newark, DE
Dr. Deborah Warshawsky
CRNP
Dover, DE
Compare Critical Care Medicine 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 Critical Care Medicine 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.
Healthcare Guides
Learn more about finding, verifying, and understanding healthcare providers.
How to Find a Doctor
Step-by-step guide to choosing a provider
Verify Credentials
Check NPI, board certification & license status
Medical Specialties Explained
Who treats what and how specialties differ
Understanding Medicare Claims Data
What prescribing data reveals about a provider
In-Network vs Out-of-Network
How insurance networks affect your costs
Telehealth Guide
Virtual care options and coverage in 2026
Explore Delaware
Frequently Asked Questions
What is Geetanjali Chatterjee, NP's specialty? ▼
Geetanjali Chatterjee, NP specializes in Critical Care Medicine Nurse Practitioner and practices in Wilmington, Delaware. Credentials: NP.
How much does Geetanjali Chatterjee, NP prescribe under Medicare Part D? ▼
In 2023, Geetanjali Chatterjee, NP wrote 3,288 Medicare Part D claims totaling $330K in drug costs for 150 beneficiaries.
Where is Geetanjali Chatterjee, NP located? ▼
Geetanjali Chatterjee, NP is located at 1400 N WASHINGTON ST STE 300, Wilmington, DE, 19801. Phone: (302) 320-5700.
What is Geetanjali Chatterjee, NP's NPI number? ▼
Geetanjali Chatterjee, NP's National Provider Identifier (NPI) is 1003155623, issued on 02/01/2013.
Does Geetanjali Chatterjee, NP prescribe more brand-name or generic drugs? ▼
Geetanjali Chatterjee, NP's prescribing is 14% brand-name and 85% generic drugs by claim count, with $251K in brand drug costs.
Does Geetanjali Chatterjee, NP prescribe opioids? ▼
Yes, Geetanjali Chatterjee, NP had 84 opioid claims in 2023 with an opioid prescribing rate of 2.6%.
How many Critical Care Medicine Nurse Practitioner providers are there in the US? ▼
There are 1,414 Critical Care Medicine Nurse Practitioner providers across 50 states in the US. The average Critical Care Medicine Nurse Practitioner provider writes 426 Medicare Part D claims per year.
What drugs does Geetanjali Chatterjee, NP prescribe most often? ▼
Based on 2023 Medicare Part D data, Geetanjali Chatterjee, NP's most frequently prescribed drugs include Furosemide, Atorvastatin Calcium, Amlodipine Besylate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Geetanjali Chatterjee, NP accept Medicare? ▼
Geetanjali Chatterjee, NP appears in CMS Medicare data with 3,288 Part D claims and 150 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Geetanjali Chatterjee, NP's credentials? ▼
Geetanjali Chatterjee, NP's NPI is 1003155623 with credentials NP. 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
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.