Katherine Marciano, MS, FNP-C
NPI 1356951008 · Nurse Practitioner · Boston, MA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Katherine Marciano, MS, FNP-C is a Nurse Practitioner provider in Boston, MA (NPI 1356951008).
Provider details
- NPI number
- 1356951008
- Entity type
- Individual
- Primary specialty
- Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- MS, FNP-C
- Sex
- Female
- Sole proprietor
- No
- License
- RN2279392 (MA)
Specialties & taxonomies
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
5 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
118 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 High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 80 | $128 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 21 | $167 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 17 | $86 |
Typical Medicare-allowed amounts for these services range $86–$167 (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) | Beneficiaries |
|---|---|---|
| Levetiracetam | 144 | 60 |
| Dexamethasone | 104 | 37 |
| Levetiracetambrand: Levetiracetam Er | 58 | 16 |
| Lacosamide | 45 | 16 |
| Sulfamethoxazole/Trimethoprimbrand: Sulfamethoxazole-Trimethoprim | 42 | 21 |
| Ondansetron Hcl | 36 | 20 |
| Prednisone | 26 | 12 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2020-08-07
- Last updated
- 2021-01-22
- Certified
- 2021-01-22
Frequently asked questions
- What is Katherine Marciano's NPI number?
- Katherine Marciano's National Provider Identifier (NPI) is 1356951008, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Katherine Marciano's specialty?
- Katherine Marciano is listed in the NPPES registry with a primary specialty of Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Katherine Marciano located?
- Katherine Marciano's practice location on file with NPPES is 55 Fruit St, Boston, MA 02114-2696.
- What is Katherine Marciano's phone number?
- The practice phone number listed in the NPPES registry for Katherine Marciano is (617) 312-8446.
- Does Katherine Marciano accept Medicare?
- Katherine Marciano is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Katherine Marciano's NPI active?
- Yes — Katherine Marciano's NPI (1356951008) is active in the NPPES registry as of the last update on 2021-01-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.