MOHAMED ASHRAF AHMED ELMASRY MD, PHD
NPI 1982126769
Ophthalmology - Retina Specialist in Boston, MA

Q: What is Mohamed Elmasry's NPI number?

The NPI number for Mohamed Elmasry is 1982126769. It was assigned to this individual provider in the NPPES registry on July 12, 2017.

Q: What is Mohamed Elmasry's specialty?

The primary specialty registered for this NPI is Ophthalmology, specializing in Retina Specialist, with taxonomy code 207WX0107X.

Q: When was this NPI record last updated?

The NPPES record for Mohamed Elmasry was last updated on July 11, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.

Active since July 12, 2017PECOS EnrolledAccepts Medicare Assignment

1 JOSLIN PL, BOSTON, MA 02215(617) 309-2586 Get Directions Write a Review

NPPES record last updated: July 11, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Jul 11, 2025, Jun 10, 2025, Dec 17, 2020 and 1 more (4 updates tracked since 2017).

On this page

About Mohamed Ashraf Ahmed Elmasry Md, Phd NPPES

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

MOHAMED ASHRAF AHMED ELMASRY MD, PHD (NPI 1982126769) is an individual retina specialist in Boston, Massachusetts, licensed in Massachusetts (283784) and active in the NPI registry since July 2017. He is enrolled in Medicare PECOS, is affiliated with Upmc Mercy, and is a graduate of Other (2008).

NPPES Registry Identity

NPI1982126769

Entity TypeIndividualMale

Primary Taxonomy207WX0107X

Provider Legal NameMOHAMED ASHRAF AHMED ELMASRYCredential: MD, PHD

Location Address1 JOSLIN PLBoston, MA 02215-5306

Mailing Address526 Farnsworth StPittsburgh, PA 15207-1145 · (617) 685-1746

Phone(617) 309-2586

Sole ProprietorNo

Medical School CMSOtherGraduated 2008

Enumeration DateJuly 12, 2017

Last NPPES UpdateJuly 11, 20254 updates tracked since enumeration

NPPES CertifiedJune 10, 2025

✔ NPI 1982126769 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOphthalmology · Retina SpecialistAllopathic & Osteopathic Physicians

Taxonomy Code207WX0107X

License✔ Licensed in MA · 283784

Definition

An ophthalmologist who specializes in the diagnosis and treatment of vitreoretinal diseases.

1 JOSLIN PL, Boston, MA 02215

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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

Mohamed Ashraf Ahmed Elmasry Md, Phd 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 ID9032526645

PECOS Enrollment IDI20250711002270

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 Mohamed Elmasry reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Joslin Clinic Inc

Same address

Multi-Specialty

1 JOSLIN PL
Boston, MA 02215

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

NPI 1528003621 (617) 732-2501

Harvard Medical Faculty Phys At Beth Israel Deaconess Med Ctr Inc

0.2 mi

Surgery

330 BROOKLINE AVE
Boston, MA 02215

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

NPI 1720037385 (617) 632-7441

University Of Pittsburgh Physicians

453 mi

Urgent Care

464 ALLEGHENY BLVD, PENNWOOD CENTER
Franklin, PA 16323

Reassigned Medicare billing, Pennsylvania enrollment
7,114 clinicians in this Medicare group

NPI 1619381456 (814) 432-9801

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 14

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.

Injection, faricimab-svoa, 0.1 mg J2777

Faricimab-svoa is a medication given through an injection into the eye to treat certain eye conditions. The 0.1 mg dosage helps control disease progression, improving vision and eye health. The procedure is done by a healthcare professional.

2,760 services16 patients

Imaging of retina 92134

Imaging of the retina is a non-invasive procedure that captures detailed images of your eye's interior. This helps detect conditions like macular degeneration or retinal detachment. It's painless and takes only a few minutes.

371 services131 patients

Imaging of retina 92134

281 services109 patients

Established patient problem focused exam of visual system 92012

This is a routine check-up for existing patients focusing on the visual system. It involves examining your eyes to detect any potential issues or changes in your vision. It's a crucial part of maintaining good eye health.

242 services159 patients

Injection, aflibercept, 1 mg J0178

Aflibercept injection is a treatment for certain eye conditions that affect vision. It works by blocking abnormal blood vessel growth and leakage in the eye, which can cause vision loss. The medication is administered directly into the eye by a healthcare professional.

234 services50 patients

Injection of drug into eye 67028

An injection into the eye is a procedure where a medication is delivered directly into your eye to treat various conditions. A local anesthetic is applied to numb the eye, ensuring minimal discomfort. The drug helps manage diseases like macular degeneration or diabetic retinopathy.

191 services78 patients

Injection of drug into eye 67028

169 services41 patients

Established patient problem focused exam of visual system 92012

129 services97 patients

Photography of the retina 92250

Photography of the retina, also known as retinal imaging, is a non-invasive procedure that captures images of the back of your eye. This helps doctors identify and monitor conditions like glaucoma, macular degeneration, or diabetic retinopathy. It's painless and quick, often part of a routine eye exam.

110 services83 patients

Established patient complete exam of visual system 92014

An established patient complete exam of the visual system involves a thorough check of your eyes and vision. It assesses eye health, checks for diseases, and measures your ability to see clearly at different distances. It's a routine, non-invasive procedure.

44 services42 patients

Photography of the retina 92250

23 services20 patients

Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212

This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.

18 services18 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.

17 services17 patients

New patient complete exam of visual system 92004

A new patient complete exam of the visual system is a thorough evaluation of your eyes and vision. It checks for any potential issues and assesses overall eye health. It includes tests for visual acuity, eye movement, and light response.

11 services11 patients

Hospital Affiliations CMS Care Compare

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

Upmc Mercy

Acute Care Hospitals · Pittsburgh, PA

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number390028

Location1400 Locust StreetPittsburgh, PA 15219 · Allegheny County

Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 02215 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.

DR. EDWARD SCHURR HORTON M.D.

Internal Medicine (Endocrinology, Diabetes & Metabolism)

1 JOSLIN PL
BOSTON, MA 02215

Suffolk County (617) 309-2400

MS. LOUISE AMBLER OSBORN CPNP

Nurse Practitioner (Pediatrics)

1 JOSLIN PL
BOSTON, MA 02215

Suffolk County (617) 732-2603

DR. JASON L GAGLIA M.D.

Internal Medicine (Endocrinology, Diabetes & Metabolism)

1 JOSLIN PL, ROOM 470
BOSTON, MA 02215

Suffolk County (617) 732-2675

KARA ROMAN HARRINGTON PHD

Psychologist

1 JOSLIN PL, DEPARTMENT OF PEDIATRICS
BOSTON, MA 02215

Suffolk County (617) 732-2603

CATERINA MORGERA MS, RD, LDN, CDOE

Dietitian, Registered

1 JOSLIN PL
BOSTON, MA 02215

Suffolk County (617) 309-2440

MR. JOYCE KEADY PNP, RN

Nurse Practitioner (Pediatrics)

1 JOSLIN PL
BOSTON, MA 02215

Suffolk County (617) 309-4499

DR. JASON NOBLE M.D.

Ophthalmology

1 JOSLIN PL
BOSTON, MA 02215

Suffolk County (617) 732-2586

ASSEL TALASPAYEVA MD

Ophthalmology

1 JOSLIN PL
BOSTON, MA 02215

Suffolk County (617) 309-2400

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 Mohamed Elmasry's NPI number?

The NPI number for Mohamed Elmasry is 1982126769. It was assigned to this individual provider in the NPPES registry on July 12, 2017.

Where is Mohamed Elmasry located?

Mohamed Elmasry practices at 1 Joslin Pl, Boston, MA 02215. The listed phone number is (617) 309-2586.

What is Mohamed Elmasry's specialty?

The primary specialty registered for this NPI is Ophthalmology, specializing in Retina Specialist, with taxonomy code 207WX0107X.

Is Mohamed Elmasry enrolled in Medicare?

Yes. Mohamed Elmasry 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 Mohamed Elmasry's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mohamed Elmasry reassigns Medicare benefits to 3 organizations: Joslin Clinic Inc (Boston, MA), Harvard Medical Faculty Phys At Beth Israel Deaconess Med Ctr Inc (Boston, MA) and University Of Pittsburgh Physicians (Franklin, PA). 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 Mohamed Elmasry's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Mohamed Elmasry accept?

Health plans from Taro Health list Mohamed Elmasry 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 Mohamed Elmasry affiliated with any hospitals?

According to CMS data, Mohamed Elmasry is affiliated with Upmc Mercy.

When was this NPI record last updated?

The NPPES record for Mohamed Elmasry was last updated on July 11, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.