FRANK MALKIN, MD
Gastroenterology Physician in NATICK, Massachusetts. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.
What the federal data shows
FRANK MALKIN, MD filed 1,758 Medicare Part D claims in 2023 as a Gastroenterology Physician in NATICK, Massachusetts, prescribing 92% generic.
- 2K
- Part D claims, 2023
- 92%
- 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.
FRANK MALKIN, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023 — across all CMS prescribers nationally
1,758 Top 17% higher than 83% 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
FRANK MALKIN, 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 FRANK MALKIN, MD?
Quality data not reportedPrimary specialty
Medicare Part D claims
Specialty distribution in Massachusetts
How Gastroenterology Physician compares to other specialties among Massachusetts providers
Gastroenterology Physician share within Massachusetts
Gastroenterology Physician is one of the more visible NUCC categories in Massachusetts
Each bar reflects the share of in-state providers whose primary NUCC taxonomy matches the specialty. Long tail of ~690 NUCC codes folded into "Other" to keep the comparison legible.
Specialty board-certification context
Estimated specialty board-certified rate — Gastroenterology Physician (ABMS / AOA reference)
- Est. board-certified rate
- 78%
- Gastroenterology Physician ABMS/AOA estimate
Est. board-certified rate (Gastroenterology Physician) — ABMS / AOA estimate
Verify credentials
- Verify via ABMS free public lookup
- Verify via AOA osteopathic boards
- Specialty volume Gastroenterology Physician US NPIs
Specialty board-certified rate — Gastroenterology Physician estimate
Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus Maintenance of Certification cycles. CMS does not publish a per-provider board-certification field; the figure shown is the specialty-level estimated rate from ABMS / AOA reference data.
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).
FRANK MALKIN, MD appears in the CMS NPPES registry as a Gastroenterology Physician provider holding MD credentials at 67 UNION ST, NATICK, MA, 01760, with a listed phone of (508) 650-9965. NPI 1467521740 was issued on 11/08/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what MALKIN 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 1,758 prescription claims written by this provider, covering 249 Medicare beneficiaries and totaling roughly $117K in drug spend, split 8% brand-name and 92% 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.
Gastroenterology Physician is a mid-sized specialty nationwide, with 16,567 enrolled providers across 54 states and an average of 833 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 | 1467521740 |
|---|---|
| Specialty | Gastroenterology Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 11/08/2006 |
Verify this provider's license
PlainDoctor pulls this profile from the CMS NPPES public registry. Confirm FRANK MALKIN, MD's current license status, disciplinary history, and board certifications with the Massachusetts Board of Registration in Medicine in Massachusetts before relying on this page for a clinical or care decision.
How we sourced this profile
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 FRANK MALKIN, MD. To verify FRANK MALKIN, MD's current license status, search the BORIM public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
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 · Generic-heavy
8% brand-name claims vs 92% generic, on 1,758 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.
Prescribing Breakdown
- 30-Day Fills
- 3,818
- Total Day Supply
- 112,629
- Brand vs Generic
- 8% brand / 92% generic
- Brand Drug Cost
- $56K
- Generic Drug Cost
- $60K
- Antibiotic Claims
- 25
Patient Demographics
- Average Patient Age
- 74.0 years
- Avg HCC Risk Score
- 1.29
- Gender Split
- 49% female / 51% male
- Age Distribution
- <65: 23, 65-74: 107, 75-84: 90, 85+: 29
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What FRANK MALKIN, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Omeprazole
Omeprazole
185 claims
- Simvastatin
Simvastatin
144 claims
- Atorvastatin Calcium
Atorvastatin Calcium
141 claims
- Levothyroxine Sodium
Levothyroxine Sodium
77 claims
- Amlodipine Besylate 67
Amlodipine Besylate
67 claims
- Metformin Hcl 53
Metformin Hcl
53 claims
- Gabapentin 49
Gabapentin
49 claims
- Lisinopril 47
Lisinopril
47 claims
| Drug | Claims |
|---|---|
| Omeprazole | 185 |
| Simvastatin | 144 |
| Atorvastatin Calcium | 141 |
| Levothyroxine Sodium | 77 |
| Amlodipine Besylate | 67 |
| Metformin Hcl | 53 |
| Gabapentin | 49 |
| Lisinopril | 47 |
| Metoprolol Succinate | 36 |
| Alprazolam | 32 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Gastroenterology Physician Overview
How FRANK MALKIN, MD fits within the Gastroenterology Physician landscape nationally.
FRANK MALKIN, MD's 1,758 claims are above the specialty average of 833.
Nearby Gastroenterology Physician Providers in Massachusetts
Other clinicians with the same primary specialty enrolled in Massachusetts, drawn from the same CMS NPPES roster as MALKIN.
Compare Gastroenterology Physician nationally: see state-by-state distribution →
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Frequently Asked Questions
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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