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JOHN C MERRIAM M.D.
NPI 1821010307
Ophthalmology in New York, NY

Active since July 24, 2006PECOS EnrolledAccepts Medicare Assignment
75/100
CMS Quality Rating
635 W 165TH ST, NEW YORK, NY 10032(212) 305-5402 Get Directions Write a Review

NPPES record last updated: November 15, 2021. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About John C Merriam M.d. NPPES

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

JOHN C MERRIAM M.D. (NPI 1821010307) is an individual ophthalmology provider in New York, New York, licensed in New York (155074-1) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS, is affiliated with New York-presbyterian Hospital, and is a graduate of Harvard Medical School (1977).

NPPES Registry Identity

NPI1821010307
Entity TypeIndividualMale
Primary Taxonomy207W00000X
Provider Legal NameJOHN C MERRIAMCredential: M.D.
Location Address635 W 165TH STNew York, NY 10032-3724
Mailing Address635 W 165th StNew York, NY 10032-3724 · (212) 305-5402
Phone(212) 305-5402
Sole ProprietorYes
Medical School CMSHarvard Medical SchoolGraduated 1977
Enumeration DateJuly 24, 2006
Last NPPES UpdateNovember 15, 2021
NPPES CertifiedNovember 15, 2021
✔ NPI 1821010307 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOphthalmologyAllopathic & Osteopathic Physicians
Taxonomy Code207W00000X
Licenses✔ Licensed in NY · 155074-1✔ Licensed in NY · 155074
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.
635 W 165TH ST, New York, NY 10032
Open in Google Maps ↗

Other Identifiers 1

Medicaid01114552NY

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

John C Merriam M.d. 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 ID8224940796
PECOS Enrollment IDI20031103000614
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.

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.
704 services427 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.
366 services154 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).
90 services38 patients
Measurement of corneal curvature and depth of eye 92136
This procedure measures the shape and depth of your eye, specifically the cornea, the clear front surface. It helps in diagnosing conditions, planning for surgeries, or fitting contact lenses. It's non-invasive and painless.
84 services84 patients
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.
50 services44 patients
New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205
This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.
44 services44 patients

Hospital Affiliations CMS Care Compare

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

New York-Presbyterian Hospital

Acute Care Hospitals · New York, NY
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number330101
Location525 East 68th StreetNew York, NY 10065 · New York County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 10032 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
$150.24 typical visit price
range $65.69 – $198.19
Typical copayment $37.56 (range $16.42 – $49.54)
Most-billed visit code 99204
Established Patient
$81.44 typical visit price
range $21.20 – $160.66
Typical copayment $20.36 (range $5.30 – $40.16)
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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

75/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Individually scored

Reported Quality Measures

Age-Related Macular Degeneration (AMD): Counseling on Antioxidant Supplement
Percentage of patients aged 50 years and older with a diagnosis of age-related macular degeneration (AMD) or their caregiver(s) who were counseled within 12 months on the benefits and/or risks of the Age-Related Eye Disease Study (AREDS) formulation for…
21%173 patients1/55-star benchmark: 100%
Age-Related Macular Degeneration (AMD): Dilated Macular Examination
Percentage of patients aged 50 years and older with a diagnosis of age-related macular degeneration (AMD) who had a dilated macular examination performed which included documentation of the presence or absence of macular thickening or geographic atrophy or…
90%173 patients4/55-star benchmark: 100%
Cataracts: 20/40 or Better Visual Acuity within 90 Days Following Cataract Surgery
Percentage of patients aged 18 years and older with a diagnosis of uncomplicated cataract who had cataract surgery and no significant ocular conditions impacting the visual outcome of surgery and had best-corrected visual acuity of 20/40 or better (distance…
99%78 patients
Diabetes: Eye Exam
Percentage of patients 18-75 years of age with diabetes who had a retinal or dilated eye exam by an eye care professional during the measurement period or a negative retinal exam (no evidence of retinopathy) in the 12 months prior to the measurement period
86%49 patients4/55-star benchmark: 100%
Diabetic Retinopathy: Documentation of Presence or Absence of Macular Edema and Level of Severity of Retinopathy
Percentage of patients aged 18 years and older with a diagnosis of diabetic retinopathy who had a dilated macular or fundus exam performed which included documentation of the level of severity of retinopathy and the presence or absence of macular edema during…
45%22 patients2/55-star benchmark: 100%
Documentation of Current Medications in the Medical Record
Percentage of visits for patients aged 18 years and older for which the eligible professional or eligible clinician attests to documenting a list of current medications using all immediate resources available on the date of the encounter.
92%1,601 patients4/55-star benchmark: 100%
Falls: Screening for Future Fall Risk
Percentage of patients 65 years of age and older who were screened for future fall risk during the measurement period
72%792 patients3/55-star benchmark: 99%
Patient-Specific Education
The MIPS eligible clinician must use clinically relevant information from certified EHR technology to identify patient-specific educational resources and provide electronic access to those materials to at least one unique patient seen by the MIPS eligible…
63%49 patients3/55-star benchmark: 100%
Preventive Care and Screening: Tobacco Use: Screening and Cessation Intervention
Percentage of patients aged 18 years and older who were screened for tobacco use one or more times within 24 months AND who received tobacco cessation intervention if identified as a tobacco user
Patients tobacco: 95% · 330 patients
92%329 patients
Primary Open-Angle Glaucoma (POAG): Optic Nerve Evaluation
Percentage of patients aged 18 years and older with a diagnosis of primary open-angle glaucoma (POAG) who have an optic nerve head evaluation during one or more office visits within 12 months
90%172 patients4/55-star benchmark: 100%
Provide Patient Access
For at least one unique patient seen by the MIPS eligible clinician: (1) The patient (or the patient authorized representative) is provided timely access to view online, download, and transmit his or her health information; and (2) The MIPS eligible clinician…
94%49 patients4/55-star benchmark: 100%
Use of High-Risk Medications in the Elderly
Percentage of patients 65 years of age and older who were ordered high-risk medications. Two rates are submitted. 1) Percentage of patients who were ordered at least one high-risk medication.
Lower rates are better for this measure.
Patients 2+: 0% · 792 patients
0%792 patients5/55-star benchmark: 100%
Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

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.

GEORGE A CIOFFI MD
Ophthalmology
635 W 165TH ST
NEW YORK, NY 10032
New York County (212) 305-9535
DR. ROYCE WELFORD SHEN CHEN M.D.
Ophthalmology
635 W 165TH ST
NEW YORK, NY 10032
New York County (212) 305-9535
ARIELA VASSERMAN PSY.D.
Psychologist (Clinical)
635 W 165TH ST, 6TH FLOOR
NEW YORK, NY 10032
New York County (212) 305-9433
JEFFREY LIEBMANN MD
Ophthalmology
635 W 165TH ST
NEW YORK, NY 10032
New York County (212) 305-9535
JAMES DRAKE AURAN M.D.
Ophthalmology
635 W 165TH ST, BOX 11
NEW YORK, NY 10032
New York County (212) 305-9535
LORA RABIN DAGI GLASS M.D.
Ophthalmology
635 W 165TH ST
NEW YORK, NY 10032
New York County (212) 305-9535
DR. GABRIEL RAND MD
Ophthalmology
635 W 165TH ST
NEW YORK, NY 10032
New York County (212) 305-6709
MR. LORENZO TORRES M.A.
Psychologist (School)
635 W 165TH ST, ROOM 636A
NEW YORK, NY 10032
New York County (646) 317-0437

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 John Merriam's NPI number?

The NPI number for John Merriam is 1821010307. It was assigned to this individual provider in the NPPES registry on July 24, 2006.

Where is John Merriam located?

John Merriam practices at 635 W 165th St, New York, NY 10032. The listed phone number is (212) 305-5402.

What is John Merriam's specialty?

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

Is John Merriam enrolled in Medicare?

Yes. John Merriam 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.

Is John Merriam affiliated with any hospitals?

According to CMS data, John Merriam is affiliated with New York-Presbyterian Hospital.

When was this NPI record last updated?

The NPPES record for John Merriam was last updated on November 15, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.