2026 NPPES data Family Medicine Physician NPI 1972586956 M.D.
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FREDERIC BAKER, M.D.

Family Medicine Physician in HOLDEN, 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
4K
Medicare Part D claims · 289 beneficiaries · Family 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

FREDERIC BAKER, M.D. filed 4,057 Medicare Part D claims in 2023 as a Family Medicine Physician in HOLDEN, Massachusetts, prescribing 91% generic.

4K
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.

FREDERIC BAKER, M.D.'s Medicare Part D volume vs every U.S. prescriber

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

4,057 Top 8% higher than 92% 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)

FREDERIC BAKER, 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 FREDERIC BAKER, M.D.?

Quality data not reported

NPI registry status

Active

Issued 11/23/2005

NPI 1972586956

Primary specialty

Family Medicine Physician

High-volume

147,640 US NPIs in this specialty

Medicare Part D claims

4,057 19% vs specialty avg

2023 prescription claims

Specialty avg: 3,418

Specialty distribution in Massachusetts

How Family Medicine Physician compares to other specialties among Massachusetts providers

Massachusetts providers

Family Medicine Physician share within Massachusetts

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

Specialty board-certification context

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

Quality data not reported
Est. board-certified rate
78%
Family Medicine Physician ABMS/AOA estimate

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

0%100%78%
Est. board-certified rate (Family 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).

FREDERIC BAKER, M.D. appears in the CMS NPPES registry as a Family Medicine Physician provider holding M.D. credentials at 52 BOYDEN RD, HOLDEN, MA, 01520, with a listed phone of (508) 829-7405. NPI 1972586956 was issued on 11/23/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what BAKER 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 4,057 prescription claims written by this provider, covering 289 Medicare beneficiaries and totaling roughly $337K in drug spend, split 9% brand-name and 91% generic by claim count, with an opioid prescribing rate of 3.1%. 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.

Family Medicine Physician is a high-volume specialty nationwide, with 147,640 enrolled providers across 56 states and an average of 3,418 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

52 BOYDEN RD
HOLDEN, MA 01520

Provider Details

NPI 1972586956
Specialty Family Medicine Physician
Credentials M.D.
Gender Male
NPI Issued 11/23/2005

Hospital and facility affiliations

Facilities where FREDERIC BAKER, 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.

UMASS MEMORIAL MEDICAL GROUP INC
HOLDEN, 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 FREDERIC BAKER, M.D.. To verify FREDERIC BAKER, 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

FREDERIC BAKER, M.D. — brand share 9.0%
Specialty average (est.)

9% brand-name claims vs 91% generic, on 4,057 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.

4,057
Total Claims
$337K
Total Drug Cost
289
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
9,734
Total Day Supply
285,468
Brand vs Generic
9% brand / 91% generic
Brand Drug Cost
$234K
Generic Drug Cost
$103K
Opioid Claims
124 (3.1% rate)
Antibiotic Claims
68

Patient Demographics

Average Patient Age
75.0 years
Avg HCC Risk Score
1.05
Gender Split
40% female / 60% male

Top Prescribed Drugs (Medicare Part D)

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

What FREDERIC BAKER, 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
411
Amlodipine Besylate
192
Lisinopril
166
Metoprolol Succinate
144
Levothyroxine Sodium
123
Gabapentin
113
Triamterene-Hydrochlorothiazid
Triamterene/Hydrochlorothiazid
113
Simvastatin
100
Sertraline Hcl
98
Tamsulosin Hcl
95

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

Family Medicine Physician Overview

How FREDERIC BAKER, M.D. fits within the Family Medicine Physician landscape nationally.

147,640
Family Medicine Physician Providers in US
56
States with Family Medicine Physician
3,418
Avg Claims per Provider

FREDERIC BAKER, M.D.'s 4,057 claims are above the specialty average of 3,418.

Nearby Family Medicine Physician Providers in Massachusetts

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

Compare Family Medicine Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is FREDERIC BAKER, M.D.'s specialty?
FREDERIC BAKER, M.D. specializes in Family Medicine Physician and practices in HOLDEN, Massachusetts. Credentials: M.D..
How much does FREDERIC BAKER, M.D. prescribe under Medicare Part D?
In 2023, FREDERIC BAKER, M.D. wrote 4,057 Medicare Part D claims totaling $337K in drug costs for 289 beneficiaries.
Where is FREDERIC BAKER, M.D. located?
FREDERIC BAKER, M.D. is located at 52 BOYDEN RD, HOLDEN, MA, 01520. Phone: (508) 829-7405.
What is FREDERIC BAKER, M.D.'s NPI number?
FREDERIC BAKER, M.D.'s National Provider Identifier (NPI) is 1972586956, issued on 11/23/2005.
Does FREDERIC BAKER, M.D. prescribe more brand-name or generic drugs?
FREDERIC BAKER, M.D.'s prescribing is 9% brand-name and 91% generic drugs by claim count, with $234K in brand drug costs.
Does FREDERIC BAKER, M.D. prescribe opioids?
Yes, FREDERIC BAKER, M.D. had 124 opioid claims in 2023 with an opioid prescribing rate of 3.1%.
How many Family Medicine Physician providers are there in the US?
There are 147,640 Family Medicine Physician providers across 56 states in the US. The average Family Medicine Physician provider writes 3,418 Medicare Part D claims per year.
What drugs does FREDERIC BAKER, M.D. prescribe most often?
Based on 2023 Medicare Part D data, FREDERIC BAKER, M.D.'s most frequently prescribed drugs include Atorvastatin Calcium, Amlodipine Besylate, Lisinopril. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does FREDERIC BAKER, M.D. accept Medicare?
FREDERIC BAKER, M.D. appears in CMS Medicare data with 4,057 Part D claims and 289 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify FREDERIC BAKER, M.D.'s credentials?
FREDERIC BAKER, M.D.'s NPI is 1972586956 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