Sermsak Lolak, MD
NPI 1285823898 · Psychiatry Physician · Falls Church, VA
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sermsak Lolak, MD is a Psychiatry Physician provider in Falls Church, VA (NPI 1285823898).
Provider details
- NPI number
- 1285823898
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- MD431288 (PA)
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
18 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
279 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 | 134 | $133 |
| Psychotherapy With Evaluation and Management Visit, 30 Minutes90833 | 54 | $77 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 44 | $184 |
| Psychiatric Diagnostic Evaluation With Medical Services90792 | 35 | $201 |
| 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 | 12 | $18 |
Typical Medicare-allowed amounts for these services range $18–$201 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 21 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Sertraline Hcl | 86 | 23 |
| Bupropion Hclbrand: Bupropion Xl | 84 | 26 |
| Bupropion Hclbrand: Bupropion Hcl Sr | 80 | 22 |
| Trazodone Hcl | 68 | 23 |
| Escitalopram Oxalate | 66 | 20 |
| Methylphenidate Hcl | 66 | 21 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$21 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
Additional practice locations (1)
- 8411 Pennell StFairfax, VA 22031Phone: (703) 698-2526
Registry dates
- Enumerated
- 2007-10-19
- Last updated
- 2021-05-27
- Certified
- 2021-05-27
Frequently asked questions
- What is Sermsak Lolak's NPI number?
- Sermsak Lolak's National Provider Identifier (NPI) is 1285823898, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sermsak Lolak's specialty?
- Sermsak Lolak is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Sermsak Lolak located?
- Sermsak Lolak's practice location on file with NPPES is 3300 Gallows Rd, Falls Church, VA 22042-3307.
- What is Sermsak Lolak's phone number?
- The practice phone number listed in the NPPES registry for Sermsak Lolak is (703) 776-4001.
- Does Sermsak Lolak accept Medicare?
- Sermsak Lolak is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sermsak Lolak's NPI active?
- Yes — Sermsak Lolak's NPI (1285823898) is active in the NPPES registry as of the last update on 2021-05-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.