2026 NPPES data Adolescent Medicine (Internal Medicine) Physician NPI 1588824601 M.D.
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KATHLEEN TOWNES, M.D.

Adolescent Medicine (Internal Medicine) Physician in IPSWICH, 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
5K
Medicare Part D claims · 433 beneficiaries · Adolescent Medicine (Internal Medicine) Physician avg: 3K
Generic prescribing
91%
generic claims · 9% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

KATHLEEN TOWNES, M.D. filed 4,659 Medicare Part D claims in 2023 as a Adolescent Medicine (Internal Medicine) Physician in IPSWICH, Massachusetts, prescribing 91% generic.

5K
Part D claims, 2023
91%
generic prescribing
Likely
board-certified (heuristic)

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.

KATHLEEN TOWNES, M.D.'s Medicare Part D volume vs every U.S. prescriber

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

4,659 Top 7% higher than 93% 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 certification likely (heuristic — not verified)

KATHLEEN TOWNES, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about KATHLEEN TOWNES, M.D.?

Quality data not reported

NPI registry status

Active

Issued 06/12/2008

NPI 1588824601

Primary specialty

Adolescent Medicine (Internal Medicine) Physician

Rare

377 US NPIs in this specialty

Medicare Part D claims

4,659 44% vs specialty avg

2023 prescription claims

Specialty avg: 3,242

Specialty distribution in Massachusetts

How Adolescent Medicine (Internal Medicine) Physician compares to other specialties among Massachusetts providers

Massachusetts providers

Adolescent Medicine (Internal Medicine) Physician share within Massachusetts

1. Adolescent Medicine (Internal Medicine) Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Adolescent Medicine (Internal Medicine) Physician share within Massachusetts

Specialty board-certification context

Estimated specialty board-certified rate — Adolescent Medicine (Internal Medicine) Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Adolescent Medicine (Internal Medicine) Physician ABMS/AOA estimate

Est. board-certified rate (Adolescent Medicine (Internal Medicine) Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Adolescent Medicine (Internal Medicine) 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).

KATHLEEN TOWNES, M.D. appears in the CMS NPPES registry as a Adolescent Medicine (Internal Medicine) Physician provider holding M.D. credentials at 36 ESSEX RD, IPSWICH, MA, 01938, with a listed phone of (978) 356-5522. NPI 1588824601 was issued on 06/12/2008. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what TOWNES 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 4,659 prescription claims written by this provider, covering 433 Medicare beneficiaries and totaling roughly $344K in drug spend, split 9% brand-name and 91% generic by claim count, with an opioid prescribing rate of 2.6%. 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.

Adolescent Medicine (Internal Medicine) Physician is a narrow specialty nationwide, with 377 enrolled providers across 46 states and an average of 3,242 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

36 ESSEX RD
IPSWICH, MA 01938

Provider Details

NPI 1588824601
Specialty Adolescent Medicine (Internal Medicine) Physician
Credentials M.D.
Gender Female
NPI Issued 06/12/2008

Hospital and facility affiliations

Facilities where KATHLEEN TOWNES, M.D. bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" — a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.

MASS GENERAL BRIGHAM MEDICAL GROUP NORTHERN MASSACHUSETTS INC
DANVERS, MA

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

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 KATHLEEN TOWNES, M.D.. To verify KATHLEEN TOWNES, 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 · Generic-heavy

KATHLEEN TOWNES, M.D. — brand share 9.0%
Specialty average (est.)

9% brand-name claims vs 91% generic, on 4,659 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.

4,659
Total Claims
$344K
Total Drug Cost
433
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
10,573
Total Day Supply
305,624
Brand vs Generic
9% brand / 91% generic
Brand Drug Cost
$240K
Generic Drug Cost
$104K
Opioid Claims
119 (2.6% rate)
Antibiotic Claims
112

Patient Demographics

Average Patient Age
73.4 years
Avg HCC Risk Score
1.01
Gender Split
77% female / 23% male
Age Distribution
<65: 27, 65-74: 227, 75-84: 138, 85+: 41

Top Prescribed Drugs (Medicare Part D)

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

What KATHLEEN TOWNES, 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
Rosuvastatin Calcium
235
Atorvastatin Calcium
207
Lisinopril
203
Omeprazole
202
Amlodipine Besylate
200
Levothyroxine Sodium
199
Losartan Potassium
176
Metoprolol Succinate
143
Hydrochlorothiazide
132
Sertraline Hcl
102

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

Adolescent Medicine (Internal Medicine) Physician Overview

How KATHLEEN TOWNES, M.D. fits within the Adolescent Medicine (Internal Medicine) Physician landscape nationally.

377
Adolescent Medicine (Internal Medicine) Physician Providers in US
46
States with Adolescent Medicine (Internal Medicine) Physician
3,242
Avg Claims per Provider

KATHLEEN TOWNES, M.D.'s 4,659 claims are above the specialty average of 3,242.

Nearby Adolescent Medicine (Internal Medicine) Physician Providers in Massachusetts

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

Compare Adolescent Medicine (Internal Medicine) Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is KATHLEEN TOWNES, M.D.'s specialty?
KATHLEEN TOWNES, M.D. specializes in Adolescent Medicine (Internal Medicine) Physician and practices in IPSWICH, Massachusetts. Credentials: M.D..
How much does KATHLEEN TOWNES, M.D. prescribe under Medicare Part D?
In 2023, KATHLEEN TOWNES, M.D. wrote 4,659 Medicare Part D claims totaling $344K in drug costs for 433 beneficiaries.
Where is KATHLEEN TOWNES, M.D. located?
KATHLEEN TOWNES, M.D. is located at 36 ESSEX RD, IPSWICH, MA, 01938. Phone: (978) 356-5522.
What is KATHLEEN TOWNES, M.D.'s NPI number?
KATHLEEN TOWNES, M.D.'s National Provider Identifier (NPI) is 1588824601, issued on 06/12/2008.
Does KATHLEEN TOWNES, M.D. prescribe more brand-name or generic drugs?
KATHLEEN TOWNES, M.D.'s prescribing is 9% brand-name and 91% generic drugs by claim count, with $240K in brand drug costs.
Does KATHLEEN TOWNES, M.D. prescribe opioids?
Yes, KATHLEEN TOWNES, M.D. had 119 opioid claims in 2023 with an opioid prescribing rate of 2.6%.
How many Adolescent Medicine (Internal Medicine) Physician providers are there in the US?
There are 377 Adolescent Medicine (Internal Medicine) Physician providers across 46 states in the US. The average Adolescent Medicine (Internal Medicine) Physician provider writes 3,242 Medicare Part D claims per year.
What drugs does KATHLEEN TOWNES, M.D. prescribe most often?
Based on 2023 Medicare Part D data, KATHLEEN TOWNES, M.D.'s most frequently prescribed drugs include Rosuvastatin Calcium, Atorvastatin Calcium, Lisinopril. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does KATHLEEN TOWNES, M.D. accept Medicare?
KATHLEEN TOWNES, M.D. appears in CMS Medicare data with 4,659 Part D claims and 433 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify KATHLEEN TOWNES, M.D.'s credentials?
KATHLEEN TOWNES, M.D.'s NPI is 1588824601 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