DR. KONSTANTIN RAVVIN (MD) – Student in an Organized Health Care Education/Training Program, NPI 1851851901

DR. KONSTANTIN RAVVIN (MD) is a healthcare provider. based in Portland, Maine. specializing in INTERNAL MEDICINE. They hold the professional credentials MD. They hold a License No. LT4397 (NH). The NPI Number for DR. KONSTANTIN RAVVIN (MD) is 1851851901

Main info

Male
7 Years Of Experience
Accepts Medicare Assignment
Name
DR. KONSTANTIN RAVVIN (MD)
NPI
1851851901
Phone
(207) 662-0111
Address
22 BRAMHALL ST
Enumeration Date
24 March 2019
Last Update Date
8 March 2026

Doctor Profile

Medical School Name
OTHER
Secondary Phone
4019965267
Graduation Year
2019 (7 years ago)
PAC ID
7113256207
Group Practice PAC ID
5193001709
Professional Enrollment ID
I20230214001372
Address ID
RI028884918WA48XXXDRXX400
Data current as of
20 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience66
Completeness85
Years active:7State licenses:3Digital endpointsOther names

916 INTERNAL MEDICINE in ME

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Provider Addresses for DR. KONSTANTIN RAVVIN (MD)

  • Maine Medical Center, 22, Bramhall Street, West End, Portland, Cumberland County, Maine, 04102, United States

    PORTLAND, ME 041023134

    Phone: (207) 662-0111

    Type: Mailing

  • 101 Dudley St

    Providence, RI 029052401

    Phone: (401) 453-7950

    Fax: (401) 453-7658

    Type: Location

  • 16 Hospital Rd

    Plymouth, NH 032641199

    Phone: (603) 536-1120

    Type: Location

  • 55 Fruit St

    Boston, MA 021142621

    Phone: (617) 726-2000

    Type: Location

  • 311 Service Rd

    East Sandwich, MA 025371370

    Phone: (508) 833-4000

    Type: Location

  • 115 Cass Ave

    Woonsocket, RI 028954731

    Phone: (401) 769-4100

    Type: Location

  • 455 Toll Gate Rd

    Warwick, RI 028862759

    Phone: (401) 737-7010

    Fax: (401) 736-4546

    Type: Location

  • 9 INDUSTRIAL RD STE 5

    MILFORD, MA 017573736

    Phone: (508) 473-1480

    Type: Mailing

  • 14 PROSPECT ST

    MILFORD, MA 017573003

    Phone: (508) 473-1480

    Type: Location

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

No Open Payments data available for this provider.

This can happen when there are no reportable CMS Open Payments records.

Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

PECOS enrollment status

Participating (accepts Medicare assignment)

Enrollment effective: 2023-11-06

PECOS data refreshed: 2026-05-27

Medicare revalidation (CMS due date list)

Due date not assigned yet

CMS is tracking 3 Medicare enrollment records; no due dates published yet.

Enrollment records

3

Earliest due date

Not assigned (TBD)

CMS data updated

2026-06-01

Revalidation progress

  1. Medicare enrolled
  2. On CMS revalidation list
  3. Due date assigned
  4. Revalidate in PECOS

CMS enrollment records

Enrollment IDTypeSpecialtyStateDue date
I20230214001372IInternal MedicineRITBD
I20230914000965IInternal MedicineMATBD
I20231106001520IInternal MedicineNHTBD

What to do next

  • No action required while the due date shows TBD.
  • Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
  • Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.

Verify on CMS Revalidation Lookup Tool

Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS

Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

Top Medicare procedures (2023) · refreshed 2026-05-27

HCPCSDescriptionServicesBeneficiariesMedicare allowed
99222Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes114103$0
99232Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes6331$0
99306Initial nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes6157$0
99239Hospital discharge day management, more than 30 minutes2222$0
99223Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes1212$0
View full utilization report →

Insurance plans in this area (ZIP 04102)

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Group practice members

Group practice members are other physicians who share the same Group Practice PAC ID with this doctor. When doctors form a group practice and register in PECOS as a single entity, they receive a shared identification number. This table lists all providers in the same group practice.
PAC ID: 5193001709View full group profile
NameSpecialtyState
Nurse PractitionerMA
-RI
Nurse PractitionerRI
Nurse PractitionerRI

Reviews

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Frequently asked questions

What unique ID ties claims to DR. KONSTANTIN RAVVIN (MD)?
NPI 1851851901 is assigned to DR. KONSTANTIN RAVVIN (MD) under the national enumeration system.
Is DR. KONSTANTIN RAVVIN (MD)'s NPI currently valid?
The extract we use shows DR. KONSTANTIN RAVVIN (MD) as active.
Does DR. KONSTANTIN RAVVIN (MD) list a primary specialty?
If you are matching referrals, note Student in an Organized Health Care Education/Training Program for DR. KONSTANTIN RAVVIN (MD). Clinical services aligned with this taxonomy classification.
Where does public data place DR. KONSTANTIN RAVVIN (MD)?
The snapshot lists Portland, Maine for DR. KONSTANTIN RAVVIN (MD); download NPPES for the complete set.
Does Medicare enrollment show here?
Medicare enrollment screens are separate from the basic NPI extract shown here.

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