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HENRY DAVID GREYNER-ALMEIDA MD
NPI 1124656533
Ophthalmology in Reading, MA

Active since March 31, 2020PECOS Enrolled
20 PONDMEADOW DR, READING, MA 01867(781) 942-9876(781) 942-9877 Get Directions Write a Review

NPPES record last updated: September 9, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Sep 9, 2025, May 18, 2024, Mar 31, 2020 (3 updates tracked since 2020).

About Henry David Greyner-almeida Md NPPES

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

HENRY DAVID GREYNER-ALMEIDA MD (NPI 1124656533) is an individual ophthalmology provider in Reading, Massachusetts, licensed in Massachusetts (1022664) and active in the NPI registry since March 2020. He is enrolled in Medicare PECOS, is affiliated with Johns Hopkins Hospital, The, and is a graduate of Other (2020).

NPPES Registry Identity

NPI1124656533
Entity TypeIndividualMale
Primary Taxonomy207W00000X
Provider Legal NameHENRY DAVID GREYNER-ALMEIDACredential: MD
Location Address20 PONDMEADOW DRReading, MA 01867-3218
Mailing Address20 Pondmeadow DrReading, MA 01867-3218 · (781) 942-9876 · Fax (781) 942-9877
Phone(781) 942-9876
Fax(781) 942-9877
Sole ProprietorNo
Medical School CMSOtherGraduated 2020
Enumeration DateMarch 31, 2020
Last NPPES UpdateSeptember 9, 20253 updates tracked since enumeration
NPPES CertifiedSeptember 9, 2025
✔ NPI 1124656533 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOphthalmologyAllopathic & Osteopathic Physicians
Taxonomy Code207W00000X
License✔ Licensed in MA · 1022664
Definition
An ophthalmologist has the knowledge and professional skills needed to provide comprehensive eye and vision care. Ophthalmologists are medically trained to diagnose, monitor and medically or surgically treat all ocular and visual disorders. This includes problems affecting the eye and its component structures, the eyelids, the orbit and the visual pathways. In so doing, an ophthalmologist prescribes vision services, including glasses and contact lenses.
20 PONDMEADOW DR, Reading, MA 01867
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Henry David Greyner-almeida Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID2961804406
PECOS Enrollment IDI20250811002310
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.

Areas of Expertise CMS Part B claims 7

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.

Exam of visual field with extended testing 92083
An extended visual field exam is a detailed test to evaluate your peripheral (side) vision. It helps to detect any potential blind spots which may not be noticeable in daily life. These could be caused by eye diseases like glaucoma, or neurological conditions.
31 services31 patients
Imaging of optic nerve 92133
Imaging of the optic nerve is a non-invasive procedure that captures detailed pictures of your optic nerve. It helps doctors assess eye health, particularly for conditions like glaucoma. It's painless, quick, and uses safe technology like MRI or OCT (Optical Coherence Tomography).
22 services22 patients
Dilation of fluid outflow drainage within eye 66174
Dilation to improve eye fluid flow is a process where eye drops are used to widen or dilate your pupils. This allows more fluid to flow out of the eye, reducing pressure and helping to prevent or treat conditions like glaucoma.
21 services19 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.
21 services20 patients
Ultrasound scan of cornea to determine thickness 76514
An ultrasound scan of the cornea is a non-invasive procedure that uses sound waves to measure the thickness of your cornea. This helps in diagnosing certain eye conditions and planning treatments. No discomfort or pain is typically experienced.
18 services18 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
15 services15 patients

Hospital Affiliations CMS Care Compare 2

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

Johns Hopkins Hospital, The

Acute Care Hospitals · Baltimore, MD
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number210009
Location600 North Wolfe StreetBaltimore, MD 21287 · Baltimore City County
Emergency services Birthing friendly

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 01867 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.

CHRISTINE C GULLA M.D.
Internal Medicine (Pulmonary Disease)
20 PONDMEADOW DR
READING, MA 01867
Middlesex County (781) 944-0040
CLAUDINE C ANASTASI
Physical Therapist
20 PONDMEADOW DR, SUITE 108
READING, MA 01867
Middlesex County (781) 944-6564
FERTILITY CENTERS OF NEW ENGLAND, LLC
Clinic/Center (Ambulatory Fertility Facility)
20 PONDMEADOW DR, SUITE 101
READING, MA 01867
Middlesex County (781) 942-7000
MICHAEL HENRY BRESNAHAN MD
Internal Medicine
20 PONDMEADOW DR, READING INTERNAL MEDICINE ASSOC INC
READING, MA 01867
Middlesex County (781) 944-0040
DR. SHANNON LEIGH DUFFY D.M.D.
Dentist (Orthodontics and Dentofacial Orthopedics)
20 PONDMEADOW DR, SUITE 202
READING, MA 01867
Middlesex County (781) 944-7799
FERTILITY CENTERS OF NEW ENGLAND, LLC
Clinic/Center (Ambulatory Fertility Facility)
20 PONDMEADOW DR, SUITE 101
READING, MA 01867
Middlesex County (781) 942-7000
LASERCARE CENTERS PC
Ophthalmology
20 PONDMEADOW DR, SUITE 204
READING, MA 01867
Middlesex County (781) 942-9876
BRIAN JOHN CASSERLY MD
Internal Medicine
20 PONDMEADOW DR
READING, MA 01867
Middlesex County (781) 944-0040

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 Henry Greyner-almeida's NPI number?

The NPI number for Henry Greyner-almeida is 1124656533. It was assigned to this individual provider in the NPPES registry on March 31, 2020.

Where is Henry Greyner-almeida located?

Henry Greyner-almeida practices at 20 Pondmeadow Dr, Reading, MA 01867. The listed phone number is (781) 942-9876.

What is Henry Greyner-almeida's specialty?

The primary specialty registered for this NPI is Ophthalmology with taxonomy code 207W00000X.

Is Henry Greyner-almeida enrolled in Medicare?

Yes. Henry Greyner-almeida is registered in the Medicare PECOS enrollment system.

What insurance does Henry Greyner-almeida accept?

Health plans from Anthem Blue Cross and Blue Shield list Henry Greyner-almeida 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 Henry Greyner-almeida affiliated with any hospitals?

According to CMS data, Henry Greyner-almeida is affiliated with Johns Hopkins Hospital, The and Massachusetts Eye And Ear Infirmary -.

When was this NPI record last updated?

The NPPES record for Henry Greyner-almeida was last updated on September 9, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.