Lydia Besterfeldt
NPI 1265929442 · Psychiatric/Mental Health Nurse Practitioner · Mc Lean, VA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Lydia Besterfeldt is a Psychiatric/Mental Health Nurse Practitioner provider in Mc Lean, VA (NPI 1265929442).
Provider details
- NPI number
- 1265929442
- Entity type
- Individual
- Primary specialty
- Psychiatric/Mental Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Female
- Sole proprietor
- No
- License
- 95013060 (CA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
8 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
444 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 209 | $97 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 148 | $15 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 50 | $144 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 | 22 | $174 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 15 | $67 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 18 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Sertraline Hcl | 104 | 32 |
| Mirtazapine | 92 | 24 |
| Duloxetine Hcl | 65 | 15 |
| Trazodone Hcl | 46 | 18 |
| Alprazolam | 35 | 14 |
| Escitalopram Oxalate | 34 | 11 |
| Bupropion Hclbrand: Bupropion Xl |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$445 across 19 records (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
Additional practice locations (1)
- 20680 Seneca Meadows Pkwy Ste 206Germantown, MD 20876-7029Phone: (301) 339-8027
Registry dates
- Enumerated
- 2018-04-13
- Last updated
- 2025-09-11
- Certified
- 2024-10-15
Frequently asked questions
- What is Lydia Besterfeldt's NPI number?
- Lydia Besterfeldt's National Provider Identifier (NPI) is 1265929442, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Lydia Besterfeldt's specialty?
- Lydia Besterfeldt is listed in the NPPES registry with a primary specialty of Psychiatric/Mental Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Lydia Besterfeldt located?
- Lydia Besterfeldt's practice location on file with NPPES is 6862 Elm St Ste 450, Mc Lean, VA 22101-3838.
- What is Lydia Besterfeldt's phone number?
- The practice phone number listed in the NPPES registry for Lydia Besterfeldt is (703) 260-6650.
- Does Lydia Besterfeldt accept Medicare?
- Lydia Besterfeldt is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Lydia Besterfeldt's NPI active?
- Yes — Lydia Besterfeldt's NPI (1265929442) is active in the NPPES registry as of the last update on 2025-09-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.