2026 NPPES data Ophthalmology Physician NPI 1376075721 MD
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ERICH HUFNAGEL, MD

Ophthalmology Physician in WILLIAMSPORT, Pennsylvania. 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
615
Medicare Part D claims · 159 beneficiaries · Ophthalmology Physician avg: 1K
Generic prescribing
66%
generic claims · 34% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

ERICH HUFNAGEL, MD filed 615 Medicare Part D claims in 2023 as a Ophthalmology Physician in WILLIAMSPORT, Pennsylvania, prescribing 66% generic.

615
Part D claims, 2023
66%
generic prescribing
Likely
board-certified (heuristic)

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.

ERICH HUFNAGEL, MD's Medicare Part D volume vs every U.S. prescriber

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

615 Top 31% higher than 69% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). Below this entry. 600–800: 56,224 prescribers (4%). This entry sits in this band. 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 certification likely (heuristic — not verified)

ERICH HUFNAGEL, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 2 hospital affiliations — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about ERICH HUFNAGEL, MD?

Quality data not reported

NPI registry status

Active

Issued 04/03/2017

NPI 1376075721

Primary specialty

Ophthalmology Physician

Mid-sized

22,090 US NPIs in this specialty

Medicare Part D claims

615 57% vs specialty avg

2023 prescription claims

Specialty avg: 1,420

Specialty distribution in Pennsylvania

How Ophthalmology Physician compares to other specialties among Pennsylvania providers

Pennsylvania providers

Ophthalmology Physician share within Pennsylvania

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

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).

ERICH HUFNAGEL, MD appears in the CMS NPPES registry as a Ophthalmology Physician provider holding MD credentials at 800 W 4TH ST, WILLIAMSPORT, PA, 17701, with a listed phone of (570) 321-0880. NPI 1376075721 was issued on 04/03/2017. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what HUFNAGEL 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 615 prescription claims written by this provider, covering 159 Medicare beneficiaries and totaling roughly $53K in drug spend, split 34% brand-name and 66% 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

800 W 4TH ST
WILLIAMSPORT, PA 17701

Provider Details

NPI 1376075721
Specialty Ophthalmology Physician
Credentials MD
Gender Male
NPI Issued 04/03/2017

Hospital and facility affiliations

Facilities where ERICH HUFNAGEL, MD bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" — a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.

GEISINGER CLINIC
WILLIAMSPORT, PA
GEISINGER-HM JOINT VENTURE LLC
MUNCY, PA

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

License & disciplinary context — Pennsylvania PA-BOM 2023 annual report

Aggregate state board data only — NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~45K Pennsylvania medical licensees in 2023 — they are NOT specific to ERICH HUFNAGEL, MD. To verify ERICH HUFNAGEL, MD's current license status, search the PA-BOM public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

133
Total board actions, Pennsylvania 2023
Across 129 cases
2.96
Actions per 1,000 licensees
Pennsylvania statewide rate
probation
Most common action type
48 cases

PA-BOM publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Pennsylvania disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Brand vs generic prescribing mix · Above average

ERICH HUFNAGEL, MD — brand share 34.0%
Specialty average (est.)

34% brand-name claims vs 66% generic, on 615 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.

615
Total Claims
$53K
Total Drug Cost
159
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,015
Total Day Supply
28,177
Brand vs Generic
34% brand / 66% generic
Brand Drug Cost
$35K
Generic Drug Cost
$18K

Patient Demographics

Average Patient Age
75.6 years
Avg HCC Risk Score
1.26
Gender Split
53% female / 47% male

Top Prescribed Drugs (Medicare Part D)

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

What ERICH HUFNAGEL, 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
127
Timolol Maleate
77
Brimonidine Tartrate
71
Prednisolone Acetate
71
Dorzolamide-Timolol
Dorzolamide Hcl/Timolol Maleat
62
Cyclosporine
26
Rhopressa
Netarsudil Mesylate
21
Diclofenac Sodium
17
Erythromycin
Erythromycin Base
16
Travoprost
15

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

Ophthalmology Physician Overview

How ERICH HUFNAGEL, 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

ERICH HUFNAGEL, MD's 615 claims are below the specialty average of 1,420.

Nearby Ophthalmology Physician Providers in Pennsylvania

Other clinicians with the same primary specialty enrolled in Pennsylvania, drawn from the same CMS NPPES roster as HUFNAGEL.

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

Frequently Asked Questions

What is ERICH HUFNAGEL, MD's specialty?
ERICH HUFNAGEL, MD specializes in Ophthalmology Physician and practices in WILLIAMSPORT, Pennsylvania. Credentials: MD.
How much does ERICH HUFNAGEL, MD prescribe under Medicare Part D?
In 2023, ERICH HUFNAGEL, MD wrote 615 Medicare Part D claims totaling $53K in drug costs for 159 beneficiaries.
Where is ERICH HUFNAGEL, MD located?
ERICH HUFNAGEL, MD is located at 800 W 4TH ST, WILLIAMSPORT, PA, 17701. Phone: (570) 321-0880.
What is ERICH HUFNAGEL, MD's NPI number?
ERICH HUFNAGEL, MD's National Provider Identifier (NPI) is 1376075721, issued on 04/03/2017.
Does ERICH HUFNAGEL, MD prescribe more brand-name or generic drugs?
ERICH HUFNAGEL, MD's prescribing is 34% brand-name and 66% generic drugs by claim count, with $35K 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 ERICH HUFNAGEL, MD prescribe most often?
Based on 2023 Medicare Part D data, ERICH HUFNAGEL, MD's most frequently prescribed drugs include Latanoprost, Timolol Maleate, Brimonidine Tartrate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does ERICH HUFNAGEL, MD accept Medicare?
ERICH HUFNAGEL, MD appears in CMS Medicare data with 615 Part D claims and 159 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ERICH HUFNAGEL, MD's credentials?
ERICH HUFNAGEL, MD's NPI is 1376075721 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