Lillianna Griggs, PMHNP
NPI 1669082962 · Psychiatric/Mental Health Nurse Practitioner · Quincy, MA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Lillianna Griggs, PMHNP is a Psychiatric/Mental Health Nurse Practitioner provider in Quincy, MA (NPI 1669082962).
Provider details
- NPI number
- 1669082962
- Entity type
- Individual
- Primary specialty
- Psychiatric/Mental Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PMHNP
- Sex
- Female
- Sole proprietor
- No
- License
- 2326872 (MA)
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 tenure28% of score
5 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
412 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 | 250 | $117 |
| Psychotherapy With Evaluation and Management Visit, 30 Minutes90833 | 128 | $64 |
| Telephone Medical Discussion With Physician, 5-10 Minutes99441 | 20 | $53 |
| Telephone Medical Discussion With Physician, 11-20 Minutes99442 | 14 | $84 |
Typical Medicare-allowed amounts for these services range $53–$117 (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 · 38 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Clonazepam | 234 | 45 |
| Lorazepam | 233 | 41 |
| Sertraline Hcl | 152 | 48 |
| Trazodone Hcl | 152 | 49 |
| Buspirone Hcl | 129 | 37 |
| Fluoxetine Hcl | 120 | 32 |
| Lamotrigine | 105 | 26 |
Practice location
Mailing address
Additional practice locations (1)
- 84 Neponset AveBoston, MA 02131-2155Phone: (617) 999-9263
Registry dates
- Enumerated
- 2020-08-03
- Last updated
- 2020-11-30
- Certified
- 2020-11-30
Frequently asked questions
- What is Lillianna Griggs's NPI number?
- Lillianna Griggs's National Provider Identifier (NPI) is 1669082962, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Lillianna Griggs's specialty?
- Lillianna Griggs is listed in the NPPES registry with a primary specialty of Psychiatric/Mental Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Lillianna Griggs located?
- Lillianna Griggs's practice location on file with NPPES is 1250 Hancock St, Quincy, MA 02169-4339.
- What is Lillianna Griggs's phone number?
- The practice phone number listed in the NPPES registry for Lillianna Griggs is (617) 774-0920.
- Does Lillianna Griggs accept Medicare?
- Lillianna Griggs is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Lillianna Griggs's NPI active?
- Yes — Lillianna Griggs's NPI (1669082962) is active in the NPPES registry as of the last update on 2020-11-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.