Barbara Duffy, CRNP-PMH
NPI 1841460086 · Psychiatric/Mental Health Nurse Practitioner · Towson, MD
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Barbara Duffy, CRNP-PMH is a Psychiatric/Mental Health Nurse Practitioner provider in Towson, MD (NPI 1841460086).
Provider details
- NPI number
- 1841460086
- Entity type
- Individual
- Primary specialty
- Psychiatric/Mental Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- CRNP-PMH
- Sex
- Female
- Sole proprietor
- No
- License
- R126340 (MD)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Nursing Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
18 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
406 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) |
|---|---|---|
| Residence Visit for Established Patient With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 40 Minutes99349 | 331 | $110 |
| Residence Visit for Established Patient With Low Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes99348 | 41 | $67 |
| Residence Visit for Established Patient With High Level of Medical Decision Making, Per Day, If Using Time, at Least 60 Minutes99350 | 23 | $163 |
| Residence Visit for New Patient With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 60 Minutes99344 | 11 | $126 |
Typical Medicare-allowed amounts for these services range $67–$163 (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 · 9 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Gabapentin | 23 |
| Lorazepam | 23 |
| Sertraline Hcl | 19 |
| Quetiapine Fumarate | 19 |
| Duloxetine Hcl | 18 |
| Trazodone Hcl | 15 |
| Clonazepam | 15 |
| Lamotrigine | 11 |
| Aripiprazole | 11 |
These counts cover prescriptions paid through Medicare Part D in 2024 — they include cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means , never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Registry dates
- Enumerated
- 2008-03-04
- Last updated
- 2014-04-30
Frequently asked questions
- What is Barbara Duffy's NPI number?
- Barbara Duffy's National Provider Identifier (NPI) is 1841460086, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Barbara Duffy's specialty?
- Barbara Duffy is listed in the NPPES registry with a primary specialty of Psychiatric/Mental Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Barbara Duffy located?
- Barbara Duffy's practice location on file with NPPES is 901 Dulaney Valley Rd, Towson, MD 21204-2600.
- What is Barbara Duffy's phone number?
- The practice phone number listed in the NPPES registry for Barbara Duffy is (410) 832-2729.
- Does Barbara Duffy accept Medicare?
- Barbara Duffy is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Barbara Duffy's NPI active?
- Yes — Barbara Duffy's NPI (1841460086) is active in the NPPES registry as of the last update on 2014-04-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.