NPI registry status
Active
2026 NPPES data Colon & Rectal Surgery Physician NPI 1164405585 MD
Verify on CMS → Jan Wojcik, MD
Colon & Rectal Surgery Physician in Springfield, Massachusetts.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 1,608 in Colon & Rectal Surgery 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
431
Medicare Part D claims · 133 beneficiaries · Colon & Rectal Surgery Physician avg: 196
Generic prescribing
77%
generic claims · 23% brand-name · higher generic rates reduce patient out-of-pocket costs
Source: CMS Medicare Part D Prescriber Public Use File, 2023
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Jan Wojcik, MD filed 431 Medicare Part D claims in 2023 as a Colon & Rectal Surgery Physician in Springfield, Massachusetts, prescribing 77% generic.
- 431
- Part D claims, 2023
- 77%
- 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.
Jan Wojcik, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
431 Top 38% higher than 62% of 1,370,886 prescribers
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)
Jan Wojcik, 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 Jan Wojcik, MD?
Quality data not reportedPrimary specialty
Colon & Rectal Surgery Physician
Medicare Part D claims
431 120% vs specialty avg
Specialty distribution in Massachusetts
How Colon & Rectal Surgery Physician compares to other specialties among Massachusetts 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 Colon & Rectal Surgery 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).
Jan Wojcik, MD appears in the CMS NPPES registry as a Colon & Rectal Surgery Physician provider holding MD credentials at 175 CAREW STREET, Springfield, MA, 01104, with a listed phone of (413) 732-4269. NPI 1164405585 was issued on 11/21/2005.
Medicare Part D records for calendar year 2023 show 431 prescription claims written by this provider, covering 133 Medicare beneficiaries and totaling roughly $24K in drug spend, split 23% brand-name and 77% generic by claim count, with an opioid prescribing rate of 22.0%.
Colon & Rectal Surgery Physician is a narrow specialty nationwide, with 1,608 enrolled providers across 50 states and an average of 196 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 | 1164405585 |
|---|---|
| Specialty | Colon & Rectal Surgery Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 11/21/2005 |
License & disciplinary context - Massachusetts BORIM 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 ~38K Massachusetts medical licensees in 2023 - they are NOT specific to Jan Wojcik, MD. To verify Jan Wojcik, MD's current license status, search the BORIM public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
80
Total board actions, Massachusetts 2023
Across 78 cases
2.11
Actions per 1,000 licensees
Massachusetts statewide rate
probation
Most common action type
29 cases
BORIM 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 Massachusetts disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Brand vs generic prescribing mix · Typical
Jan Wojcik, MD - brand share 23.0%
Colon & Rectal Surgery Physician average
23% brand-name claims vs 77% generic, on 431 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.
431
Total Claims
$24K
Total Drug Cost
133
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 488
- Total Day Supply
- 9,620
- Brand vs Generic
- 23% brand / 77% generic
- Brand Drug Cost
- $11K
- Generic Drug Cost
- $13K
- Opioid Claims
- 95 (22.0% rate)
- Antibiotic Claims
- 24
Patient Demographics
- Average Patient Age
- 67.6 years
- Avg HCC Risk Score
- 1.22
- Gender Split
- 57% female / 43% male
- Age Distribution
- <65: 41, 65-74: 57, 75-84: 24, 85+: 11
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Jan Wojcik, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Silver Sulfadiazine
Silver Sulfadiazine
50 claims
- Tramadol Hcl
Tramadol Hcl
42 claims
- Lactulose
Lactulose
38 claims
- Ibuprofen
Ibuprofen
29 claims
- Mesalamine
Mesalamine
25 claims
- Ssd
Ssd
24 claims
- Mometasone Furoate 19
Mometasone Furoate
19 claims
- Oxycodone Hcl 18
Oxycodone Hcl
18 claims
| Drug | Claims |
|---|---|
| Silver Sulfadiazine | 50 |
| Tramadol Hcl | 42 |
| Lactulose | 38 |
| Ibuprofen | 29 |
| Mesalamine | 25 |
| Ssd Silver Sulfadiazine | 24 |
| Mometasone Furoate | 19 |
| Oxycodone Hcl | 18 |
| Tamsulosin Hcl | 18 |
| Dicyclomine Hcl | 17 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Colon & Rectal Surgery Physician in MA →
All providers in Massachusetts →
Compare specialties →
Colon & Rectal Surgery Physician Overview
How Jan Wojcik, MD fits within the Colon & Rectal Surgery Physician landscape nationally.
1,608
Colon & Rectal Surgery Physician Providers in US
50
States with Colon & Rectal Surgery Physician
196
Avg Claims per Provider
Jan Wojcik, MD's 431 claims are above the specialty average of 196.
Nearby Colon & Rectal Surgery Physician Providers in Massachusetts
Other clinicians with the same primary specialty enrolled in Massachusetts, drawn from the same CMS NPPES roster as Wojcik.
Dr. Karim Alavi
MD
Worcester, MA
Dr. Olga Beresneva
M.D.
Boston, MA
Dr. Marcella Bradway
M.D.
Pittsfield, MA
Dr. Elizabeth Breen
MD
Burlington, MA
Dr. Amanda Cimsit
MD
Boston, MA
Compare Colon & Rectal Surgery Physician nationally: see state-by-state distribution →
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 Massachusetts medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Colon & Rectal Surgery 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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Understanding Medicare Claims Data
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Frequently Asked Questions
What is Jan Wojcik, MD's specialty? ▼
Jan Wojcik, MD specializes in Colon & Rectal Surgery Physician and practices in Springfield, Massachusetts. Credentials: MD.
How much does Jan Wojcik, MD prescribe under Medicare Part D? ▼
In 2023, Jan Wojcik, MD wrote 431 Medicare Part D claims totaling $24K in drug costs for 133 beneficiaries.
Where is Jan Wojcik, MD located? ▼
Jan Wojcik, MD is located at 175 CAREW STREET, Springfield, MA, 01104. Phone: (413) 732-4269.
What is Jan Wojcik, MD's NPI number? ▼
Jan Wojcik, MD's National Provider Identifier (NPI) is 1164405585, issued on 11/21/2005.
Does Jan Wojcik, MD prescribe more brand-name or generic drugs? ▼
Jan Wojcik, MD's prescribing is 23% brand-name and 77% generic drugs by claim count, with $11K in brand drug costs.
Does Jan Wojcik, MD prescribe opioids? ▼
Yes, Jan Wojcik, MD had 95 opioid claims in 2023 with an opioid prescribing rate of 22.0%.
How many Colon & Rectal Surgery Physician providers are there in the US? ▼
There are 1,608 Colon & Rectal Surgery Physician providers across 50 states in the US. The average Colon & Rectal Surgery Physician provider writes 196 Medicare Part D claims per year.
What drugs does Jan Wojcik, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Jan Wojcik, MD's most frequently prescribed drugs include Silver Sulfadiazine, Tramadol Hcl, Lactulose. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Jan Wojcik, MD accept Medicare? ▼
Jan Wojcik, MD appears in CMS Medicare data with 431 Part D claims and 133 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Jan Wojcik, MD's credentials? ▼
Jan Wojcik, MD's NPI is 1164405585 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
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
Compiled from official public sources by the PlainDoctor editorial team.