NPI registry status
Active
2026 NPPES data Orthopaedic Hand Surgery Physician NPI 1659335297 MD
Verify on CMS → John Mara, MD
Orthopaedic Hand Surgery Physician in Rocky Hill, Connecticut.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 2,013 in Orthopaedic Hand 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
89
Medicare Part D claims · 78 beneficiaries · Orthopaedic Hand Surgery Physician avg: 185
What the federal data shows
John Mara, MD filed 89 Medicare Part D claims in 2024 as an Orthopaedic Hand Surgery Physician in Rocky Hill, Connecticut.
- 89
- Part D claims, 2024
- ≥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.
Federal trust snapshot
What official records show about John Mara, MD
Federal records show an active NPI with Medicare Part D prescribing activity — verifiable registry data, not a proprietary rating.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1659335297), first enumerated 04/12/2006.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 89 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
Board certification signal
Practices in an ABMS-board-eligible specialty; board certification not confirmed in federal records.
- Not in federal data
Individual sanction lookup
PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.
Source: State medical board / FSMB
This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.
CMS NPPES provider registry desk
NPI 1659335297 · Orthopaedic Hand Surgery Physician
NPI-10 · ENUM-LEGACY · TAX-NARROW · RX-TRACE · BOOK-THIN · PHOTO-ENUM
- NPI-10 1659335297
- ENUM-LEGACY 2006
- TAX-NARROW 2,013
- RX-TRACE 89
- BOOK-THIN 38 in Connecticut
- PHOTO-ENUM Andre Chaves · 2006
John Mara, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
89 ≥ 0th percentile 0% of 1,416,883 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 · 2024
◑
Board-eligible specialty (heuristic, not verified)
John Mara, 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 John Mara, MD?
Quality data not reportedPrimary specialty
Orthopaedic Hand Surgery Physician
Medicare Part D claims
89 52% vs specialty avg
Specialty distribution in Connecticut
How Orthopaedic Hand Surgery Physician compares to other specialties among Connecticut 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 Orthopaedic Hand 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).
Practice Address
Provider Details
| NPI | 1659335297 |
|---|---|
| Specialty | Orthopaedic Hand Surgery Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 04/12/2006 |
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2024.
89
Total Claims
$34K
Total Drug Cost
78
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 95
- Total Day Supply
- 1,408
- Generic Drug Cost
- $337
Patient Demographics
- Average Patient Age
- 73.4 years
- Avg HCC Risk Score
- 0.88
- Gender Split
- 63% female / 37% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What John Mara, MD prescribes most
Top Medicare Part D drugs by claim count, 2024
- Methylprednisolone
Methylprednisolone
33 claims
- Meloxicam
Meloxicam
28 claims
- Prednisone
Prednisone
16 claims
| Drug | Claims |
|---|---|
| Methylprednisolone | 33 |
| Meloxicam | 28 |
| Prednisone | 16 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Orthopaedic Hand Surgery Physician in CT →
All providers in Connecticut →
Compare specialties →
Orthopaedic Hand Surgery Physician Overview
How John Mara, MD fits within the Orthopaedic Hand Surgery Physician landscape nationally.
2,013
Orthopaedic Hand Surgery Physician Providers in US
52
States with Orthopaedic Hand Surgery Physician
185
Avg Claims per Provider
John Mara, MD's 89 claims are below the specialty average of 185.
Nationwide Orthopaedic Hand Surgery Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Mara, both outside Connecticut so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2006)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Orthopaedic Hand Surgery Physician Providers in Connecticut
Other clinicians with the same primary specialty enrolled in Connecticut, drawn from the same CMS NPPES roster as Mara.
One of 38 Orthopaedic Hand Surgery Physician providers enrolled in Connecticut, 5 are shown here.
Dr. James Aglio
MD
Middlebury, CT
Dr. Mark Altman
M.D.
Hamden, CT
Dr. Michael Aron
MD
Hartford, CT
Dr. Richard Bernstein
M.D.
Branford, CT
Dr. Warren Burrows
M.D.
Waterford, CT
Compare Orthopaedic Hand Surgery Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is John Mara, MD's specialty? ▼
John Mara, MD specializes in Orthopaedic Hand Surgery Physician and practices in Rocky Hill, Connecticut. Credentials: MD.
How much does John Mara, MD prescribe under Medicare Part D? ▼
In 2024, John Mara, MD wrote 89 Medicare Part D claims totaling $34K in drug costs for 78 beneficiaries.
Where is John Mara, MD located? ▼
John Mara, MD is located at 1111 CROMWELL AVE STE 404, Rocky Hill, CT, 06067. Phone: (860) 525-4469.
What is John Mara, MD's NPI number? ▼
John Mara, MD's National Provider Identifier (NPI) is 1659335297, issued on 04/12/2006.
How many Orthopaedic Hand Surgery Physician providers are there in the US? ▼
There are 2,013 Orthopaedic Hand Surgery Physician providers across 52 states in the US. The average Orthopaedic Hand Surgery Physician provider writes 185 Medicare Part D claims per year.
What drugs does John Mara, MD prescribe most often? ▼
Based on 2024 Medicare Part D data, John Mara, MD's most frequently prescribed drugs include Methylprednisolone, Meloxicam, Prednisone. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does John Mara, MD accept Medicare? ▼
John Mara, MD appears in CMS Medicare data with 89 Part D claims and 78 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify John Mara, MD's credentials? ▼
John Mara, MD's NPI is 1659335297 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 (2024). 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 August 2026 (NPPES) / 2024 (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 August 2026.