Gillian Sowden, MD
NPI 1720387202 · Psychiatry Physician · Lebanon, NH
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gillian Sowden, MD is a Psychiatry Physician provider in Lebanon, NH (NPI 1720387202).
Provider details
- NPI number
- 1720387202
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 17807 (NH)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
15 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
130 Medicare services, 2024 (ranked within specialty)
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 methodology.
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 | 63 | $93 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 56 | $127 |
| Psychiatric Diagnostic Evaluation With Medical Services90792 | 11 | $166 |
Typical Medicare-allowed amounts for these services range $93–$166 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote 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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2011-03-23
- Last updated
- 2015-07-01
Frequently asked questions
- What is Gillian Sowden's NPI number?
- Gillian Sowden's National Provider Identifier (NPI) is 1720387202, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gillian Sowden's specialty?
- Gillian Sowden is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Gillian Sowden located?
- Gillian Sowden's practice location on file with NPPES is 1 Medical Center Dr, Lebanon, NH 03756-1000.
- What is Gillian Sowden's phone number?
- The practice phone number listed in the NPPES registry for Gillian Sowden is (603) 650-5000.
- Does Gillian Sowden accept Medicare?
- Gillian Sowden is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gillian Sowden's NPI active?
- Yes — Gillian Sowden's NPI (1720387202) is active in the NPPES registry as of the last update on 2015-07-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.