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HAROLD GREGORY OTA MD
NPI 1598839821
Otolaryngology in Medford, MA

Active since November 20, 2006PECOS EnrolledAccepts Medicare Assignment
101 MAIN ST, SUITE 216, MEDFORD, MA 02155(781) 874-1965(781) 874-1967 Get Directions Write a Review

NPPES record last updated: September 20, 2011. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Harold Gregory Ota Md NPPES

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

HAROLD GREGORY OTA MD (NPI 1598839821) is an individual otolaryngology provider in Medford, Massachusetts, licensed in Massachusetts (54244) and active in the NPI registry since November 2006. He is enrolled in Medicare PECOS, is affiliated with Massachusetts Eye And Ear Infirmary -, and is a graduate of University Of Massachusetts Medical School (1981).

NPPES Registry Identity

NPI1598839821
Entity TypeIndividualMale
Primary Taxonomy207Y00000X
Provider Legal NameHAROLD GREGORY OTACredential: MD
Location Address101 MAIN ST, SUITE 216Medford, MA 02155-4540
Mailing Address101 Main St, Suite 216Medford, MA 02155-4540 · (781) 874-1965 · Fax (781) 874-1967
Phone(781) 874-1965
Fax(781) 874-1967
Sole ProprietorYes
Medical School CMSUniversity Of Massachusetts Medical SchoolGraduated 1981
Enumeration DateNovember 20, 2006
Last NPPES UpdateSeptember 20, 2011
✔ NPI 1598839821 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOtolaryngologyAllopathic & Osteopathic Physicians
Taxonomy Code207Y00000X
License✔ Licensed in MA · 54244
Definition
An otolaryngologist-head and neck surgeon provides comprehensive medical and surgical care for patients with diseases and disorders that affect the ears, nose, throat, the respiratory and upper alimentary systems and related structures of the head and neck. An otolaryngologist diagnoses and provides medical and/or surgical therapy or prevention of diseases, allergies, neoplasms, deformities, disorders and/or injuries of the ears, nose, sinuses, throat, respiratory and upper alimentary systems, face, jaws and the other head and neck systems. Head and neck oncology, facial plastic and reconstructive surgery and the treatment of disorders of hearing and voice are fundamental areas of expertise.
101 MAIN ST, Medford, MA 02155
Open in Google Maps ↗

Other Identifiers 5

Medicaid3083233MA
OtherJ05336MA · Bcbs Ma
Medicare ID-Type UnspecifiedJ05336MA
Other705758MA · Tufts Health Plan
Medicare UPIND05408

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Taro Health.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

Harold Gregory Ota 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 ID8527014984
PECOS Enrollment IDI20050329000599
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

3

Medicare enrollment records show Harold Ota reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Massachusetts Eye And Ear Associates, Inc.
4.2 mi
Ophthalmology
243 CHARLES ST
Boston, MA 02114
  • Reassigned Medicare billing, Massachusetts enrollment
  • 478 clinicians in this Medicare group
NPI 1932574332 (617) 523-7900
Massachusetts General Physicians Organization Inc
4.2 mi
Dermatology
55 FRUIT ST, BUL 2
Boston, MA 02114
  • Reassigned Medicare billing, Massachusetts enrollment
  • 6,360 clinicians in this Medicare group
NPI 1801874573 (617) 724-0287
The General Hospital Corporation
4.2 mi
General Acute Care Hospital
55 FRUIT ST, BULFINCH 360
Boston, MA 02114
  • Reassigned Medicare billing, Massachusetts enrollment
  • 6,234 clinicians in this Medicare group
NPI 1023049236 (617) 726-2000

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 8

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.

Removal of impacted ear wax 69210
Impacted ear wax removal is a safe procedure to clear blockages in the ear canal caused by hardened ear wax. A healthcare professional uses specialized tools or a gentle irrigation method to loosen and remove the wax, improving hearing and alleviating discomfort.
260 services186 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.
241 services171 patients
New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203
This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.
101 services101 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
40 services40 patients
Diagnostic exam of voice box using a flexible endoscope 31575
This procedure involves a doctor examining your voice box using a flexible endoscope, a thin tube with a light and camera. It's inserted through your nose or mouth to visualize your throat area. It helps detect any abnormalities in your voice box, ensuring optimal vocal health.
39 services39 patients
Diagnostic exam of nasal passages using an endoscope 31231
A diagnostic exam of nasal passages using an endoscope is a non-invasive procedure. A small, flexible tube with a light and camera at the end, called an endoscope, is inserted into the nose. This allows the doctor to view the nasal passages and sinuses, helping to identify any issues.
22 services22 patients

Hospital Affiliations CMS Care Compare

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

Massachusetts Eye And Ear Infirmary -

Acute Care Hospitals · Boston, MA
OwnershipVoluntary non-profit - Private
CMS Certification Number220075
Location243 Charles StreetBoston, MA 02114 · Suffolk County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 02155 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
$144.11 typical visit price
range $63.72 – $189.86
Typical copayment $36.02 (range $15.93 – $47.46)
Most-billed visit code 99204
Established Patient
$78.84 typical visit price
range $21.07 – $155.29
Typical copayment $19.71 (range $5.26 – $38.82)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

JASON M. GILBERT, M.D. P.C.
Ophthalmology
101 MAIN ST, SUITE 208
MEDFORD, MA 02155
Middlesex County (781) 395-9916
H. GREGORY OTA, M.D., P.C
Clinic/Center (Medical Specialty)
101 MAIN ST, SUITE 216
MEDFORD, MA 02155
Middlesex County (781) 874-1965
BING KO M.D., SC.D.
Internal Medicine
101 MAIN ST, SUITE 110
MEDFORD, MA 02155
Middlesex County (781) 396-4514
DIANE COSTE NP
Nurse Practitioner
101 MAIN ST, SUITE 110
MEDFORD, MA 02155
Middlesex County (781) 391-2705
STEPHANIE S BJORK M.D.
Obstetrics & Gynecology
101 MAIN ST, SUITE 217
MEDFORD, MA 02155
Middlesex County (781) 395-6000
PIUS FOVIE OGAGAN MD
Internal Medicine
101 MAIN ST, HALLMARK HEALTH SYSTEM INC SUITE 116
MEDFORD, MA 02155
Middlesex County (781) 396-2000
DR. PAUL G COLANERI DMD
Dentist (General Practice)
101 MAIN ST, SUITE 206
MEDFORD, MA 02155
Middlesex County (781) 395-5545
DR. LORENZO LEPORE DMD
Dentist (General Practice)
101 MAIN ST, SUITE 206
MEDFORD, MA 02155
Middlesex County (781) 395-5545

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 Harold Ota's NPI number?

The NPI number for Harold Ota is 1598839821. It was assigned to this individual provider in the NPPES registry on November 20, 2006.

Where is Harold Ota located?

Harold Ota practices at 101 Main St Suite 216, Medford, MA 02155. The listed phone number is (781) 874-1965.

What is Harold Ota's specialty?

The primary specialty registered for this NPI is Otolaryngology with taxonomy code 207Y00000X.

Is Harold Ota enrolled in Medicare?

Yes. Harold Ota 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 Harold Ota's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Harold Ota reassigns Medicare benefits to 3 organizations: Massachusetts Eye And Ear Associates, Inc. (Boston, MA), Massachusetts General Physicians Organization Inc (Boston, MA) and The General Hospital Corporation (Boston, MA). 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 Harold Ota's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Harold Ota accept?

Health plans from Taro Health list Harold Ota 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 Harold Ota affiliated with any hospitals?

According to CMS data, Harold Ota is affiliated with Massachusetts Eye And Ear Infirmary -.

When was this NPI record last updated?

The NPPES record for Harold Ota was last updated on September 20, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 years 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.