Lily Parsey, PMHNP
NPI 1821514035 · Psychiatric/Mental Health Nurse Practitioner · Gaithersburg, MD
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Lily Parsey, PMHNP is a Psychiatric/Mental Health Nurse Practitioner provider in Gaithersburg, MD (NPI 1821514035).
Provider details
- NPI number
- 1821514035
- Entity type
- Individual
- Primary specialty
- Psychiatric/Mental Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PMHNP
- Sex
- Female
- Sole proprietor
- No
- License
- 0024182504 (VA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
8 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
500 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 | 227 | $118 |
| Psychotherapy With Evaluation and Management Visit, 30 Minutes90833 | 147 | $65 |
| Psychotherapy With Evaluation and Management Visit, 45 Minutes90836 | 99 | $82 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 27 | $78 |
Typical Medicare-allowed amounts for these services range $65–$118 (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.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 17 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Gabapentin | 48 |
| Fluoxetine Hcl | 35 |
| Sertraline Hcl | 33 |
| Lamotrigine | 29 |
| Aripiprazole | 28 |
| Trazodone Hcl | 26 |
| Clonazepam | 24 |
| Escitalopram Oxalate | 24 |
| Alprazolam | 21 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2017-08-18
- Last updated
- 2023-04-27
- Certified
- 2023-04-27
Frequently asked questions
- What is Lily Parsey's NPI number?
- Lily Parsey's National Provider Identifier (NPI) is 1821514035, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Lily Parsey's specialty?
- Lily Parsey is listed in the NPPES registry with a primary specialty of Psychiatric/Mental Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Lily Parsey located?
- Lily Parsey's practice location on file with NPPES is 8929 Shady Grove Ct, Gaithersburg, MD 20877-1308.
- What is Lily Parsey's phone number?
- The practice phone number listed in the NPPES registry for Lily Parsey is (202) 465-5703.
- Does Lily Parsey accept Medicare?
- Lily Parsey is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Lily Parsey's NPI active?
- Yes — Lily Parsey's NPI (1821514035) is active in the NPPES registry as of the last update on 2023-04-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.