Krystal Alexander
NPI 1841721214 · Pulmonary Disease Physician · Stony Brook, NY
Enrolled with Medicare as Practitioner - Pulmonary Disease · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Krystal Alexander is a Pulmonary Disease Physician provider in Stony Brook, NY (NPI 1841721214).
Provider details
- NPI number
- 1841721214
- Entity type
- Individual
- Primary specialty
- Pulmonary Disease PhysicianAllopathic & Osteopathic Physicians
- Sex
- Female
- Sole proprietor
- No
- License
- 325210 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
9 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
1,050 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Critical Care, First 30-74 Minutes99291 | 214 | $237 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 177 | $203 |
| Test to Determine Lung Volumes Using Gas Dilution Or Washout94727 | 101 | $52 |
| Test to Examine How Well the Lungs Exchange Gases94729 | 100 | $66 |
| Test to Measure Expiratory Airflow and Volume94010 | 70 | $32 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 63 | $132 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 7 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Fluticasone/Umeclidin/Vilanterbrand: Trelegy Ellipta | 81 | 21 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 73 | 33 |
| Fluticasone/Vilanterolbrand: Breo Ellipta | 36 | — |
| Fluticasone Propionate | 29 | 14 |
| Prednisone | 20 | 17 |
| Fluticasone Propion/Salmeterolbrand: Fluticasone-Salmeterol | 12 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$24 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2017-03-27
- Last updated
- 2023-08-12
- Certified
- 2023-08-12
Frequently asked questions
- What is Krystal Alexander's NPI number?
- Krystal Alexander's National Provider Identifier (NPI) is 1841721214, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Krystal Alexander's specialty?
- Krystal Alexander is listed in the NPPES registry with a primary specialty of Pulmonary Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Krystal Alexander located?
- Krystal Alexander's practice location on file with NPPES is 101 Nicolls Rd, Stony Brook, NY 11794-2762.
- What is Krystal Alexander's phone number?
- The practice phone number listed in the NPPES registry for Krystal Alexander is (631) 444-3869.
- Does Krystal Alexander accept Medicare?
- Krystal Alexander is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Krystal Alexander's NPI active?
- Yes — Krystal Alexander's NPI (1841721214) is active in the NPPES registry as of the last update on 2023-08-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.