DESPOINA CLAIR MAVROMMATI MD
NPI 1659892289
Internal Medicine in East Providence, RI

Q: What is Despoina Mavrommati's NPI number?

The NPI number for Despoina Mavrommati is 1659892289. It was assigned to this individual provider in the NPPES registry on July 5, 2017.

Q: What is Despoina Mavrommati's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Active since July 05, 2017PECOS EnrolledAccepts Medicare Assignment

900 WARREN AVE STE 400, EAST PROVIDENCE, RI 02914(401) 331-1221 Get Directions Write a Review

NPPES record last updated: July 24, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jul 24, 2026, Apr 9, 2024, Feb 19, 2021 and 1 more (4 updates tracked since 2017).

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About Despoina Clair Mavrommati Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DESPOINA CLAIR MAVROMMATI MD (NPI 1659892289) is an individual internal medicine provider in East Providence, Rhode Island, licensed in Rhode Island (MD17210) and active in the NPI registry since July 2017. She is enrolled in Medicare PECOS, is affiliated with Massachusetts General Hospital, and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1659892289

Entity TypeIndividualFemale

Primary Taxonomy207R00000X

Provider Legal NameDESPOINA CLAIR MAVROMMATICredential: MD

Location Address900 WARREN AVE STE 400East Providence, RI 02914-1430

Mailing Address10 Davol Sq Ste 400Providence, RI 02903-4760 · (401) 421-4000 · Fax (401) 272-7145

Phone(401) 331-1221

Sole ProprietorNo

Medical School CMSOtherGraduated 2007

Enumeration DateJuly 5, 2017

Last NPPES UpdateJuly 24, 20264 updates tracked since enumeration

NPPES CertifiedJuly 24, 2026

✔ NPI 1659892289 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207R00000X

Licenses✔ Licensed in RI · MD17210✔ Licensed in RI · MD20424

Definition

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

Also ListedHospitalistTaxonomy 208M00000X · License 295405 (MA)

900 WARREN AVE STE 400, East Providence, RI 02914

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Secondary Practice Locations 2

Location 1455 Toll Gate RdWarwick, RI 02886-2759 · Phone (401) 737-7010 · Fax (401) 736-4546

Location 2101 Page StNew Bedford, MA 02740-3464 · Phone (508) 973-5919 · Fax (508) 973-5916

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

Despoina Clair Mavrommati 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.

PECOS PAC ID8527484849

PECOS Enrollment IDI20200818001550, I20230412002434

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

Medicare enrollment records show Despoina Mavrommati reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Coastal Medical Physicians, Inc.

1.0 mi

Internal Medicine

375 WAMPANOAG TRL
Riverside, RI 02915

Reassigned Medicare billing, Rhode Island enrollment
268 clinicians in this Medicare group

NPI 1093678104 (401) 649-4000

Affinity Physicians LLC

3.4 mi

Anesthesiology

101 DUDLEY STREET, WIH DEPT OF ANESTHESIOLOGY
Providence, RI 02905

Reassigned Medicare billing, Rhode Island enrollment
984 clinicians in this Medicare group

NPI 1053038471 (401) 274-1122

Southcoast Physicians Group, Inc.

26 mi

Emergency Medicine

208 MILL RD
Fairhaven, MA 02719

Reassigned Medicare billing, Massachusetts enrollment
1,144 clinicians in this Medicare group

NPI 1861830143 (855) 319-0518

Coastal Medical Associates

32 mi

Anesthesiology

55 FOGG RD
Weymouth, MA 02190

Reassigned Medicare billing, Massachusetts enrollment
671 clinicians in this Medicare group

NPI 1932175684 (781) 340-4293

South Shore Medical Center, Inc.

34 mi

Internal Medicine

143 LONGWATER DRIVE
Norwell, MA 02061

Reassigned Medicare billing, Massachusetts enrollment
346 clinicians in this Medicare group

NPI 1669411856 (781) 792-4191

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 6

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.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232

Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.

236 services112 patients

Hospital discharge day management, more than 30 minutes 99239

Hospital discharge day management over 30 minutes involves a detailed process to ensure a smooth transition from hospital to home. It includes final examinations, discussion of your hospital stay, post-discharge instructions, and coordinating follow-up care.

98 services94 patients

Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223

Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.

94 services93 patients

Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 99231

Follow-up hospital inpatient care is a daily service where a healthcare professional checks on your health progress during your hospital stay. Each session typically lasts 15 minutes, involving updates on your condition and adjustments to your treatment plan, if necessary.

79 services42 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

39 services39 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233

Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.

22 services18 patients

Hospital Affiliations CMS Care Compare 4

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Massachusetts General Hospital

Acute Care Hospitals · Boston, MA

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number220071

Location55 Fruit StreetBoston, MA 02114 · Suffolk County

Emergency services Birthing friendly

Southcoast Hospitals Group

Acute Care Hospitals · Fall River, MA

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number220074

Location363 Highland AvenueFall River, MA 02720 · Bristol County

Emergency services Birthing friendly

South Shore Hospital

Acute Care Hospitals · South Weymouth, MA

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number220100

Location55 Fogg RoadSouth Weymouth, MA 02190 · Norfolk County

Emergency services Birthing friendly

The Miriam Hospital

Acute Care Hospitals · Providence, RI

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number410012

Location164 Summit AvenueProvidence, RI 02906 · Providence County

Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 02914 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$134.17 typical visit price

range $58.57 – $177.03

Typical copayment $33.54 (range $14.64 – $44.25)

Most-billed visit code 99204

Established Patient

$103.10 typical visit price

range $18.92 – $144.38

Typical copayment $25.77 (range $4.73 – $36.09)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Referred Medical Equipment & Supplies CMS DME claims 3

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253

DME-Other DME · category DE017N

13 suppliers30 claims79 services$6.56 avg. paid by Medicare

Lancets, per box of 100 A4259

DME-Medical/Surgical Supplies · category DA000N

6 suppliers13 claims22 services$1.08 avg. paid by Medicare

Supply allowance for therapeutic continuous glucose monitor (cgm), includes all supplies and accessories, 1 month supply = 1 unit of service K0553

DME-Other DME · category DE017N

2 suppliers17 claims17 services$201.66 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 14

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. KAREN R. SMIGEL MD

Family Medicine