DR. KONSTANTIN RAVVIN MD
NPI 1851851901
Hospitalist in Milford, MA
About Dr. Konstantin Ravvin Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. KONSTANTIN RAVVIN MD (NPI 1851851901) is an individual hospitalist provider in Milford, Massachusetts, licensed in Massachusetts (1016008) and active in the NPI registry since March 2019. He is enrolled in Medicare PECOS, is affiliated with Milford Regional Medical Center, and maintains 7 additional practice locations.
NPPES Registry Identity
Specialties & Licenses 3
Secondary Practice Locations 7
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Konstantin Ravvin Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
11Medicare enrollment records show Konstantin Ravvin reassigns Medicare billing to 11 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Milford, MA 01757
- Reassigned Medicare billing, Massachusetts enrollment
- 238 clinicians in this Medicare group
Woonsocket, RI 02895
- Reassigned Medicare billing, Rhode Island enrollment
- 65 clinicians in this Medicare group
North Smithfield, RI 02896
- Reassigned Medicare billing, Rhode Island enrollment
- 18 clinicians in this Medicare group
Worcester, MA 01655
- Reassigned Medicare billing, Massachusetts enrollment
- 2,902 clinicians in this Medicare group
Boston, MA 02215
- Reassigned Medicare billing, Massachusetts enrollment
- 1,006 clinicians in this Medicare group
Boston, MA 02114
- Reassigned Medicare billing, Massachusetts enrollment
- 6,234 clinicians in this Medicare group
Boston, MA 02114
- Reassigned Medicare billing, Massachusetts enrollment
- 6,360 clinicians in this Medicare group
Falmouth, MA 02540
- Reassigned Medicare billing, Massachusetts enrollment
- 238 clinicians in this Medicare group
Hyannis, MA 02601
- Reassigned Medicare billing, Massachusetts enrollment
- 423 clinicians in this Medicare group
Meredith, NH 03253
- Reassigned Medicare billing, New Hampshire enrollment
- 92 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 5
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare 4
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Milford Regional Medical Center
Acute Care Hospitals · Milford, MABrigham And Women's Hospital
Acute Care Hospitals · Boston, MALandmark Medical Center
Acute Care Hospitals · Woonsocket, RIThe Miriam Hospital
Acute Care Hospitals · Providence, RIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 01757 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
MILFORD, MA 01757
MILFORD, MA 01757
MILFORD, MA 01757
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Konstantin Ravvin's NPI number?
The NPI number for Konstantin Ravvin is 1851851901. It was assigned to this individual provider in the NPPES registry on March 24, 2019.
Where is Konstantin Ravvin located?
Konstantin Ravvin practices at 14 Prospect St, Milford, MA 01757. The listed phone number is (508) 473-1480.
What is Konstantin Ravvin's specialty?
The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.
Is Konstantin Ravvin enrolled in Medicare?
Yes. Konstantin Ravvin is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Konstantin Ravvin's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Konstantin Ravvin reassigns Medicare benefits to 11 organizations: Milford Regional Physician Group, Inc. (Milford, MA), Prime Healthcare Services Landmark LLC (Woonsocket, RI), New England Premier Healthcare Ltd (North Smithfield, RI), Umass Memorial Medical Group Inc (Worcester, MA), Associated Physicians Of Harvard Medical Faculty Physicians At Beth Is (Boston, MA) and 6 more organizations, listed in the Medicare section above. Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Konstantin Ravvin's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Konstantin Ravvin accept?
Health plans from Taro Health list Konstantin Ravvin as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Konstantin Ravvin affiliated with any hospitals?
According to CMS data, Konstantin Ravvin is affiliated with Milford Regional Medical Center, Brigham And Women's Hospital, Landmark Medical Center and The Miriam Hospital.
When was this NPI record last updated?
The NPPES record for Konstantin Ravvin was last updated on June 24, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Dr. Konstantin Ravvin, MD · NPI 1851851901
Hospitalist physician in Milford, Massachusetts. Individual provider, active in the CMS NPPES registry since March 24, 2019.
## Identity
- **NPI:** 1851851901 (Entity type: Individual)
- **Enumerated:** March 24, 2019
- **Primary specialty:** Hospitalist · taxonomy 208M00000X
- **State license:** 1016008 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 14 PROSPECT ST, Milford, MA 01757-3003
- **Phone:** (508) 473-1480
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 11 organizations under Medicare reassignment (form CMS-855R): Milford Regional Physician Group, Inc. (NPI 1285031039, Milford, MA); Prime Healthcare Services Landmark LLC (NPI 1457772543, Woonsocket, RI); New England Premier Healthcare Ltd (NPI 1447799036, North Smithfield, RI); Umass Memorial Medical Group Inc (NPI 1760445373, Worcester, MA); Associated Physicians Of Harvard Medical Faculty Physicians At Beth Is (NPI 1861216038, Boston, MA); and 6 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2019
## Record status
- **NPPES last updated:** June 24, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1851851901) · Data from the CMS NPPES public registry.