2026 NPPES data Endocrinology, Diabetes & Metabolism Physician NPI 1649277674 M.D.
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JONATHAN KOLODNY, M.D.

Endocrinology, Diabetes & Metabolism Physician in NORWOOD, Massachusetts. 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
13K
Medicare Part D claims · 843 beneficiaries · Endocrinology, Diabetes & Metabolism Physician avg: 3K
Generic prescribing
82%
generic claims · 18% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

JONATHAN KOLODNY, M.D. filed 13,356 Medicare Part D claims in 2023 as a Endocrinology, Diabetes & Metabolism Physician in NORWOOD, Massachusetts, prescribing 82% generic.

13K
Part D claims, 2023
82%
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.

JONATHAN KOLODNY, M.D.'s Medicare Part D volume vs every U.S. prescriber

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

13,356 Top 2% higher than 98% 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%). Below this entry. 800–1,000: 40,919 prescribers (3%). Below this entry. 1,000–1,200: 31,827 prescribers (2%). Below this entry. 1,200–1,400: 26,224 prescribers (2%). Below this entry. 1,400–1,600: 21,710 prescribers (2%). Below this entry. 1,600–1,800: 19,072 prescribers (1%). Below this entry. 1,800–2,000: 16,451 prescribers (1%). Below this entry. 2,000–2,200: 213,991 prescribers (16%). This entry sits in this band. 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-eligible specialty (heuristic — not verified)

JONATHAN KOLODNY, 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 JONATHAN KOLODNY, M.D.?

Quality data not reported

NPI registry status

Active

Issued 07/06/2005

NPI 1649277674

Primary specialty

Endocrinology, Diabetes & Metabolism Physician

Mid-sized

7,852 US NPIs in this specialty

Medicare Part D claims

13,356 406% vs specialty avg

2023 prescription claims

Specialty avg: 2,639

Specialty distribution in Massachusetts

How Endocrinology, Diabetes & Metabolism Physician compares to other specialties among Massachusetts providers

Massachusetts providers

Endocrinology, Diabetes & Metabolism Physician share within Massachusetts

1. Endocrinology, Diabetes & Metabolism Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Endocrinology, Diabetes & Metabolism Physician share within Massachusetts

Specialty board-certification context

Estimated specialty board-certified rate — Endocrinology, Diabetes & Metabolism Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Endocrinology, Diabetes & Metabolism Physician ABMS/AOA estimate

Est. board-certified rate (Endocrinology, Diabetes & Metabolism Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Endocrinology, Diabetes & Metabolism 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).

JONATHAN KOLODNY, M.D. appears in the CMS NPPES registry as a Endocrinology, Diabetes & Metabolism Physician provider holding M.D. credentials at 825 WASHINGTON ST, NORWOOD, MA, 02062, with a listed phone of (781) 762-0425. NPI 1649277674 was issued on 07/06/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what KOLODNY 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 13,356 prescription claims written by this provider, covering 843 Medicare beneficiaries and totaling roughly $2.3 million in drug spend, split 18% brand-name and 82% generic by claim count, with an opioid prescribing rate of 1.6%. 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.

Endocrinology, Diabetes & Metabolism Physician is a mid-sized specialty nationwide, with 7,852 enrolled providers across 54 states and an average of 2,639 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

825 WASHINGTON ST
NORWOOD, MA 02062

Provider Details

NPI 1649277674
Specialty Endocrinology, Diabetes & Metabolism Physician
Credentials M.D.
Gender Male
NPI Issued 07/06/2005

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 JONATHAN KOLODNY, M.D.. To verify JONATHAN KOLODNY, M.D.'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

JONATHAN KOLODNY, M.D. — brand share 18.0%
Specialty average (est.)

18% brand-name claims vs 82% generic, on 13,356 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.

13,356
Total Claims
$2.3M
Total Drug Cost
843
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
29,560
Total Day Supply
868,755
Brand vs Generic
18% brand / 82% generic
Brand Drug Cost
$2.0M
Generic Drug Cost
$245K
Opioid Claims
217 (1.6% rate)
Antibiotic Claims
281

Patient Demographics

Average Patient Age
76.5 years
Avg HCC Risk Score
1.09
Gender Split
56% female / 44% male
Age Distribution
<65: 32, 65-74: 336, 75-84: 309, 85+: 166

Top Prescribed Drugs (Medicare Part D)

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

What JONATHAN KOLODNY, M.D. 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
Atorvastatin Calcium
844
Hydrochlorothiazide
597
Levothyroxine Sodium
543
Metoprolol Succinate
481
Lisinopril
424
Lorazepam
366
Omeprazole
338
Metformin Hcl
318
Losartan Potassium
298
Simvastatin
290

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

Endocrinology, Diabetes & Metabolism Physician Overview

How JONATHAN KOLODNY, M.D. fits within the Endocrinology, Diabetes & Metabolism Physician landscape nationally.

7,852
Endocrinology, Diabetes & Metabolism Physician Providers in US
54
States with Endocrinology, Diabetes & Metabolism Physician
2,639
Avg Claims per Provider

JONATHAN KOLODNY, M.D.'s 13,356 claims are above the specialty average of 2,639.

Nearby Endocrinology, Diabetes & Metabolism Physician Providers in Massachusetts

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

Compare Endocrinology, Diabetes & Metabolism Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is JONATHAN KOLODNY, M.D.'s specialty?
JONATHAN KOLODNY, M.D. specializes in Endocrinology, Diabetes & Metabolism Physician and practices in NORWOOD, Massachusetts. Credentials: M.D..
How much does JONATHAN KOLODNY, M.D. prescribe under Medicare Part D?
In 2023, JONATHAN KOLODNY, M.D. wrote 13,356 Medicare Part D claims totaling $2.3M in drug costs for 843 beneficiaries.
Where is JONATHAN KOLODNY, M.D. located?
JONATHAN KOLODNY, M.D. is located at 825 WASHINGTON ST, NORWOOD, MA, 02062. Phone: (781) 762-0425.
What is JONATHAN KOLODNY, M.D.'s NPI number?
JONATHAN KOLODNY, M.D.'s National Provider Identifier (NPI) is 1649277674, issued on 07/06/2005.
Does JONATHAN KOLODNY, M.D. prescribe more brand-name or generic drugs?
JONATHAN KOLODNY, M.D.'s prescribing is 18% brand-name and 82% generic drugs by claim count, with $2.0M in brand drug costs.
Does JONATHAN KOLODNY, M.D. prescribe opioids?
Yes, JONATHAN KOLODNY, M.D. had 217 opioid claims in 2023 with an opioid prescribing rate of 1.6%.
How many Endocrinology, Diabetes & Metabolism Physician providers are there in the US?
There are 7,852 Endocrinology, Diabetes & Metabolism Physician providers across 54 states in the US. The average Endocrinology, Diabetes & Metabolism Physician provider writes 2,639 Medicare Part D claims per year.
What drugs does JONATHAN KOLODNY, M.D. prescribe most often?
Based on 2023 Medicare Part D data, JONATHAN KOLODNY, M.D.'s most frequently prescribed drugs include Atorvastatin Calcium, Hydrochlorothiazide, Levothyroxine Sodium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does JONATHAN KOLODNY, M.D. accept Medicare?
JONATHAN KOLODNY, M.D. appears in CMS Medicare data with 13,356 Part D claims and 843 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify JONATHAN KOLODNY, M.D.'s credentials?
JONATHAN KOLODNY, M.D.'s NPI is 1649277674 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

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