NPI registry status
Active
2026 NPPES data Anatomic Pathology & Clinical Pathology Physician NPI 1952442055 M.D.
Verify on CMS → Donald Nicklas, M.D.
Anatomic Pathology & Clinical Pathology Physician in Audubon, Pennsylvania.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 13,700 in Anatomic Pathology & Clinical Pathology Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
81
Medicare Part D claims · Anatomic Pathology & Clinical Pathology Physician avg: 284
Generic prescribing
70%
generic claims · 30% brand-name · higher generic rates reduce patient out-of-pocket costs
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
Donald Nicklas, M.D. filed 81 Medicare Part D claims in 2023 as an Anatomic Pathology & Clinical Pathology Physician in Audubon, Pennsylvania, prescribing 70% generic.
- 81
- Part D claims, 2023
- 70%
- generic prescribing
- ≥0th
- pct by Part D claim volume (lower-bound band)
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.
Donald Nicklas, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
81 ≥ 0th percentile 0% of 1,370,886 prescribers are in lower value bands
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.
The percentile is a conservative 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.
Source CMS Medicare Part D Prescriber Public Use File · 2023
◑
Board-eligible specialty (heuristic, not verified)
Donald Nicklas, M.D. 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 Donald Nicklas, M.D.?
Quality data not reportedPrimary specialty
Anatomic Pathology & Clinical Pathology Physician
Medicare Part D claims
81 71% vs specialty avg
Specialty distribution in Pennsylvania
How Anatomic Pathology & Clinical Pathology Physician compares to other specialties among Pennsylvania providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Anatomic Pathology & Clinical Pathology Physician. Verify directly:
How MIPS and board certification work
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).
Donald Nicklas, M.D. appears in the CMS NPPES registry as an Anatomic Pathology & Clinical Pathology Physician provider holding M.D. credentials at 2865 RINGNECK RD, Audubon, PA, 19403, with a listed phone of (610) 539-0549. NPI 1952442055 was issued on 02/09/2007.
Medicare Part D records for calendar year 2023 show 81 prescription claims written by this provider, covering N/A Medicare beneficiaries and totaling roughly $13K in drug spend, split 30% brand-name and 70% generic by claim count.
Anatomic Pathology & Clinical Pathology Physician is a mid-sized specialty nationwide, with 13,700 enrolled providers across 55 states and an average of 284 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
Provider Details
| NPI | 1952442055 |
|---|---|
| Specialty | Anatomic Pathology & Clinical Pathology Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 02/09/2007 |
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 Donald Nicklas, M.D.. To verify Donald Nicklas, M.D.'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
Donald Nicklas, M.D. - brand share 30.0%
Anatomic Pathology & Clinical Pathology Physician average
30% brand-name claims vs 70% generic, on 81 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.
81
Total Claims
$13K
Total Drug Cost
N/A
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 101
- Total Day Supply
- 3,006
- Brand vs Generic
- 30% brand / 70% generic
- Brand Drug Cost
- $13K
- Generic Drug Cost
- $359
Patient Demographics
- Average Patient Age
- 75.0 years
- Avg HCC Risk Score
- 1.54
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Donald Nicklas, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Clopidogrel
Clopidogrel
13 claims
- Jardiance
Jardiance
13 claims
- Ezetimibe
Ezetimibe
12 claims
- Fenofibrate
Fenofibrate
12 claims
- Rosuvastatin Calcium
Rosuvastatin Calcium
11 claims
| Drug | Claims |
|---|---|
| Clopidogrel Clopidogrel Bisulfate | 13 |
| Jardiance Empagliflozin | 13 |
| Ezetimibe | 12 |
| Fenofibrate Fenofibrate Nanocrystallized | 12 |
| Rosuvastatin Calcium | 11 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Anatomic Pathology & Clinical Pathology Physician in PA →
All providers in Pennsylvania →
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Anatomic Pathology & Clinical Pathology Physician Overview
How Donald Nicklas, M.D. fits within the Anatomic Pathology & Clinical Pathology Physician landscape nationally.
13,700
Anatomic Pathology & Clinical Pathology Physician Providers in US
55
States with Anatomic Pathology & Clinical Pathology Physician
284
Avg Claims per Provider
Donald Nicklas, M.D.'s 81 claims are below the specialty average of 284.
Nearby Anatomic Pathology & Clinical Pathology Physician Providers in Pennsylvania
Other clinicians with the same primary specialty enrolled in Pennsylvania, drawn from the same CMS NPPES roster as Nicklas.
Before you book an appointment
Use this federal record as your verification checklist, not as a recommendation.
- Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
- Check the active license and any disciplinary history with the Pennsylvania medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Anatomic Pathology & Clinical Pathology Physician peer on Medicare volume and prescribing patterns. Compare providers
Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.
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Frequently Asked Questions
What is Donald Nicklas, M.D.'s specialty? ▼
Donald Nicklas, M.D. specializes in Anatomic Pathology & Clinical Pathology Physician and practices in Audubon, Pennsylvania. Credentials: M.D..
How much does Donald Nicklas, M.D. prescribe under Medicare Part D? ▼
In 2023, Donald Nicklas, M.D. wrote 81 Medicare Part D claims totaling $13K in drug costs for N/A beneficiaries.
Where is Donald Nicklas, M.D. located? ▼
Donald Nicklas, M.D. is located at 2865 RINGNECK RD, Audubon, PA, 19403. Phone: (610) 539-0549.
What is Donald Nicklas, M.D.'s NPI number? ▼
Donald Nicklas, M.D.'s National Provider Identifier (NPI) is 1952442055, issued on 02/09/2007.
Does Donald Nicklas, M.D. prescribe more brand-name or generic drugs? ▼
Donald Nicklas, M.D.'s prescribing is 30% brand-name and 70% generic drugs by claim count, with $13K in brand drug costs.
How many Anatomic Pathology & Clinical Pathology Physician providers are there in the US? ▼
There are 13,700 Anatomic Pathology & Clinical Pathology Physician providers across 55 states in the US. The average Anatomic Pathology & Clinical Pathology Physician provider writes 284 Medicare Part D claims per year.
What drugs does Donald Nicklas, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Donald Nicklas, M.D.'s most frequently prescribed drugs include Clopidogrel, Jardiance, Ezetimibe. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Donald Nicklas, M.D. accept Medicare? ▼
Donald Nicklas, M.D. appears in CMS Medicare data with 81 Part D claims and N/A Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Donald Nicklas, M.D.'s credentials? ▼
Donald Nicklas, M.D.'s NPI is 1952442055 with credentials M.D.. 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
View source datasets and methodology notes
- 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
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 2026.