2026 NPPES data Ophthalmology Physician NPI 1932199361 MD
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JUNE GRUTZMACHER, MD

Ophthalmology Physician in LAMBERTVILLE, New Jersey. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
375
Medicare Part D claims · 89 beneficiaries · Ophthalmology Physician avg: 1K
Generic prescribing
61%
generic claims · 39% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

JUNE GRUTZMACHER, MD filed 375 Medicare Part D claims in 2023 as a Ophthalmology Physician in LAMBERTVILLE, New Jersey, prescribing 61% generic.

375
Part D claims, 2023
61%
generic prescribing

Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) — no proprietary rating or editorial opinion is applied.

JUNE GRUTZMACHER, MD's Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

375 Top 43% higher than 57% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). This entry sits in this band. 400–600: 90,619 prescribers (7%). Above this entry. 600–800: 56,224 prescribers (4%). Above this entry. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source CMS Medicare Part D Prescriber Public Use File · 2023

Board-eligible specialty (heuristic — not verified)

JUNE GRUTZMACHER, MD practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about JUNE GRUTZMACHER, MD?

Quality data not reported

NPI registry status

Active

Issued 10/26/2005

NPI 1932199361

Primary specialty

Ophthalmology Physician

Mid-sized

22,090 US NPIs in this specialty

Medicare Part D claims

375 74% vs specialty avg

2023 prescription claims

Specialty avg: 1,420

Specialty distribution in New Jersey

How Ophthalmology Physician compares to other specialties among New Jersey providers

New Jersey providers

Ophthalmology Physician share within New Jersey

1. Ophthalmology Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Ophthalmology Physician share within New Jersey

Specialty board-certification context

Estimated specialty board-certified rate — Ophthalmology Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Ophthalmology Physician ABMS/AOA estimate

Est. board-certified rate (Ophthalmology Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Ophthalmology Physician) — ABMS / AOA estimate

The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.

Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).

JUNE GRUTZMACHER, MD appears in the CMS NPPES registry as a Ophthalmology Physician provider holding MD credentials at 173 N UNION ST, LAMBERTVILLE, NJ, 08530, with a listed phone of (609) 397-0007. NPI 1932199361 was issued on 10/26/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what GRUTZMACHER most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 375 prescription claims written by this provider, covering 89 Medicare beneficiaries and totaling roughly $78K in drug spend, split 39% brand-name and 61% generic by claim count. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

Ophthalmology Physician is a mid-sized specialty nationwide, with 22,090 enrolled providers across 56 states and an average of 1,420 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

173 N UNION ST
LAMBERTVILLE, NJ 08530

Provider Details

NPI 1932199361
Specialty Ophthalmology Physician
Credentials MD
Gender Female
NPI Issued 10/26/2005

Brand vs generic prescribing mix · Above average

JUNE GRUTZMACHER, MD — brand share 39.0%
Specialty average (est.)

39% brand-name claims vs 61% generic, on 375 2023 Medicare Part D claims.

The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

375
Total Claims
$78K
Total Drug Cost
89
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
768
Total Day Supply
22,602
Brand vs Generic
39% brand / 61% generic
Brand Drug Cost
$65K
Generic Drug Cost
$13K

Patient Demographics

Average Patient Age
79.8 years
Avg HCC Risk Score
1.10
Gender Split
64% female / 36% male
Age Distribution
<65: 0, 65-74: 21, 75-84: 44, 85+: 24

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

What JUNE GRUTZMACHER, MD prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Latanoprost
89
Dorzolamide-Timolol
Dorzolamide Hcl/Timolol Maleat
61
Timolol Maleate
54
Prednisolone Acetate
31
Rocklatan
Netarsudil Mesylat/Latanoprost
18
Lumigan
Bimatoprost
16
Travoprost
16
Restasis
Cyclosporine
14

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Ophthalmology Physician Overview

How JUNE GRUTZMACHER, MD fits within the Ophthalmology Physician landscape nationally.

22,090
Ophthalmology Physician Providers in US
56
States with Ophthalmology Physician
1,420
Avg Claims per Provider

JUNE GRUTZMACHER, MD's 375 claims are below the specialty average of 1,420.

Nearby Ophthalmology Physician Providers in New Jersey

Other clinicians with the same primary specialty enrolled in New Jersey, drawn from the same CMS NPPES roster as GRUTZMACHER.

Compare Ophthalmology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is JUNE GRUTZMACHER, MD's specialty?
JUNE GRUTZMACHER, MD specializes in Ophthalmology Physician and practices in LAMBERTVILLE, New Jersey. Credentials: MD.
How much does JUNE GRUTZMACHER, MD prescribe under Medicare Part D?
In 2023, JUNE GRUTZMACHER, MD wrote 375 Medicare Part D claims totaling $78K in drug costs for 89 beneficiaries.
Where is JUNE GRUTZMACHER, MD located?
JUNE GRUTZMACHER, MD is located at 173 N UNION ST, LAMBERTVILLE, NJ, 08530. Phone: (609) 397-0007.
What is JUNE GRUTZMACHER, MD's NPI number?
JUNE GRUTZMACHER, MD's National Provider Identifier (NPI) is 1932199361, issued on 10/26/2005.
Does JUNE GRUTZMACHER, MD prescribe more brand-name or generic drugs?
JUNE GRUTZMACHER, MD's prescribing is 39% brand-name and 61% generic drugs by claim count, with $65K in brand drug costs.
How many Ophthalmology Physician providers are there in the US?
There are 22,090 Ophthalmology Physician providers across 56 states in the US. The average Ophthalmology Physician provider writes 1,420 Medicare Part D claims per year.
What drugs does JUNE GRUTZMACHER, MD prescribe most often?
Based on 2023 Medicare Part D data, JUNE GRUTZMACHER, MD's most frequently prescribed drugs include Latanoprost, Dorzolamide-Timolol, Timolol Maleate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does JUNE GRUTZMACHER, MD accept Medicare?
JUNE GRUTZMACHER, MD appears in CMS Medicare data with 375 Part D claims and 89 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify JUNE GRUTZMACHER, MD's credentials?
JUNE GRUTZMACHER, MD's NPI is 1932199361 with credentials MD. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.

Data Sources

Provider Directory
CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
Specialty Classification
NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
Prescribing Data
CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
Limitations
Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.

See our complete data methodology for details on how we collect and process government data.

Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).

Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology