Katherine Grieco, D.O.
NPI 1396940722 · Addiction Medicine (Family Medicine) Physician · Hartford, CT
Enrolled with Medicare as Practitioner - Addiction Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Katherine Grieco, D.O. is a Addiction Medicine (Family Medicine) Physician provider in Hartford, CT (NPI 1396940722).
Provider details
- NPI number
- 1396940722
- Entity type
- Individual
- Primary specialty
- Addiction Medicine (Family Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Female
- Sole proprietor
- Yes
- License
- 048852 (CT)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
33 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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 Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 33 | $68 |
Typical Medicare-allowed amounts for these services range $68–$68 (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 · 10 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Buprenorphine Hcl/Naloxone Hclbrand: Buprenorphine-Naloxone | 88 | 12 |
| Naltrexone Hcl | 40 | 18 |
| Trazodone Hcl | 31 | — |
| Buprenorphine Hcl | 21 | — |
| Clonidine Hcl | 19 | — |
| Gabapentin | 15 | — |
| Sertraline Hcl |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$129 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 360 State St Apt 709New Haven, CT 06510-3602Phone: (484) 529-7465
Registry dates
- Enumerated
- 2007-06-16
- Last updated
- 2020-09-25
- Certified
- 2020-09-25
Frequently asked questions
- What is Katherine Grieco's NPI number?
- Katherine Grieco's National Provider Identifier (NPI) is 1396940722, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Katherine Grieco's specialty?
- Katherine Grieco is listed in the NPPES registry with a primary specialty of Addiction Medicine (Family Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Katherine Grieco located?
- Katherine Grieco's practice location on file with NPPES is 200 Retreat Avenue, Hartford, CT 06106-3309.
- What is Katherine Grieco's phone number?
- The practice phone number listed in the NPPES registry for Katherine Grieco is (484) 529-7465.
- Does Katherine Grieco accept Medicare?
- Katherine Grieco is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Katherine Grieco's NPI active?
- Yes — Katherine Grieco's NPI (1396940722) is active in the NPPES registry as of the last update on 2020-09-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.