2026 NPPES data Sleep Medicine (Psychiatry & Neurology) Physician NPI 1649251281 MD
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BETSY SHERRY, MD

Sleep Medicine (Psychiatry & Neurology) Physician in CAMBRIDGE, 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
1K
Medicare Part D claims · 162 beneficiaries · Sleep Medicine (Psychiatry & Neurology) Physician avg: 1K
Generic prescribing
96%
generic claims · 4% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

BETSY SHERRY, MD filed 1,118 Medicare Part D claims in 2023 as a Sleep Medicine (Psychiatry & Neurology) Physician in CAMBRIDGE, Massachusetts, prescribing 96% generic.

1K
Part D claims, 2023
96%
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.

BETSY SHERRY, MD's Medicare Part D volume vs every U.S. prescriber

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

1,118 Top 23% higher than 77% 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%). This entry sits in this band. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. 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)

BETSY SHERRY, MD 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 BETSY SHERRY, MD?

Quality data not reported

NPI registry status

Active

Issued 11/10/2005

NPI 1649251281

Primary specialty

Sleep Medicine (Psychiatry & Neurology) Physician

Rare

371 US NPIs in this specialty

Medicare Part D claims

1,118 11% vs specialty avg

2023 prescription claims

Specialty avg: 1,005

Specialty distribution in Massachusetts

How Sleep Medicine (Psychiatry & Neurology) Physician compares to other specialties among Massachusetts providers

Massachusetts providers

Sleep Medicine (Psychiatry & Neurology) Physician share within Massachusetts

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

Specialty board-certification context

Estimated specialty board-certified rate — Sleep Medicine (Psychiatry & Neurology) Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Sleep Medicine (Psychiatry & Neurology) Physician ABMS/AOA estimate

Est. board-certified rate (Sleep Medicine (Psychiatry & Neurology) Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Sleep Medicine (Psychiatry & Neurology) 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).

BETSY SHERRY, MD appears in the CMS NPPES registry as a Sleep Medicine (Psychiatry & Neurology) Physician provider holding MD credentials at 300 MOUNT AUBURN ST STE 316, CAMBRIDGE, MA, 02138, with a listed phone of (617) 868-0880. NPI 1649251281 was issued on 11/10/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what SHERRY 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 1,118 prescription claims written by this provider, covering 162 Medicare beneficiaries and totaling roughly $241K in drug spend, split 4% brand-name and 96% generic by claim count, with an opioid prescribing rate of 1.8%. 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.

Sleep Medicine (Psychiatry & Neurology) Physician is a narrow specialty nationwide, with 371 enrolled providers across 45 states and an average of 1,005 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

300 MOUNT AUBURN ST STE 316
CAMBRIDGE, MA 02138

Provider Details

NPI 1649251281
Specialty Sleep Medicine (Psychiatry & Neurology) Physician
Credentials MD
Gender Female
NPI Issued 11/10/2005

Hospital and facility affiliations

Facilities where BETSY SHERRY, MD 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.

MOUNT AUBURN PROFESSIONAL SERVICES INC
CAMBRIDGE, 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 BETSY SHERRY, MD. To verify BETSY SHERRY, 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 · Generic-heavy

BETSY SHERRY, MD — brand share 4.0%
Specialty average (est.)

4% brand-name claims vs 96% generic, on 1,118 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.

1,118
Total Claims
$241K
Total Drug Cost
162
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,865
Total Day Supply
54,685
Brand vs Generic
4% brand / 96% generic
Brand Drug Cost
$188K
Generic Drug Cost
$53K
Opioid Claims
20 (1.8% rate)

Patient Demographics

Average Patient Age
72.4 years
Avg HCC Risk Score
1.10
Gender Split
58% female / 42% male
Age Distribution
<65: 22, 65-74: 72, 75-84: 53, 85+: 15

Top Prescribed Drugs (Medicare Part D)

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

What BETSY SHERRY, MD 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
Gabapentin
181
Clonazepam
56
Levetiracetam
53
Lamotrigine
41
Phenytoin Sodium Extended
38
Zolpidem Tartrate
38
Donepezil Hcl
37
Mirtazapine
37
Armodafinil
33
Memantine Hcl
30

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

Sleep Medicine (Psychiatry & Neurology) Physician Overview

How BETSY SHERRY, MD fits within the Sleep Medicine (Psychiatry & Neurology) Physician landscape nationally.

371
Sleep Medicine (Psychiatry & Neurology) Physician Providers in US
45
States with Sleep Medicine (Psychiatry & Neurology) Physician
1,005
Avg Claims per Provider

BETSY SHERRY, MD's 1,118 claims are above the specialty average of 1,005.

Nearby Sleep Medicine (Psychiatry & Neurology) Physician Providers in Massachusetts

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

Compare Sleep Medicine (Psychiatry & Neurology) Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is BETSY SHERRY, MD's specialty?
BETSY SHERRY, MD specializes in Sleep Medicine (Psychiatry & Neurology) Physician and practices in CAMBRIDGE, Massachusetts. Credentials: MD.
How much does BETSY SHERRY, MD prescribe under Medicare Part D?
In 2023, BETSY SHERRY, MD wrote 1,118 Medicare Part D claims totaling $241K in drug costs for 162 beneficiaries.
Where is BETSY SHERRY, MD located?
BETSY SHERRY, MD is located at 300 MOUNT AUBURN ST STE 316, CAMBRIDGE, MA, 02138. Phone: (617) 868-0880.
What is BETSY SHERRY, MD's NPI number?
BETSY SHERRY, MD's National Provider Identifier (NPI) is 1649251281, issued on 11/10/2005.
Does BETSY SHERRY, MD prescribe more brand-name or generic drugs?
BETSY SHERRY, MD's prescribing is 4% brand-name and 96% generic drugs by claim count, with $188K in brand drug costs.
Does BETSY SHERRY, MD prescribe opioids?
Yes, BETSY SHERRY, MD had 20 opioid claims in 2023 with an opioid prescribing rate of 1.8%.
How many Sleep Medicine (Psychiatry & Neurology) Physician providers are there in the US?
There are 371 Sleep Medicine (Psychiatry & Neurology) Physician providers across 45 states in the US. The average Sleep Medicine (Psychiatry & Neurology) Physician provider writes 1,005 Medicare Part D claims per year.
What drugs does BETSY SHERRY, MD prescribe most often?
Based on 2023 Medicare Part D data, BETSY SHERRY, MD's most frequently prescribed drugs include Gabapentin, Clonazepam, Levetiracetam. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does BETSY SHERRY, MD accept Medicare?
BETSY SHERRY, MD appears in CMS Medicare data with 1,118 Part D claims and 162 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify BETSY SHERRY, MD's credentials?
BETSY SHERRY, MD's NPI is 1649251281 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

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