2026 NPPES data Vascular Neurology Physician NPI 1043294663 M.D., PH.D.
Verify on CMS →

JOHN BAKER, M.D., PH.D.

Vascular Neurology Physician in CHESAPEAKE, Virginia. 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
18
Medicare Part D claims · Vascular Neurology Physician avg: 378
MIPS score
83.7659/100
▲ 1 pts above national avg 83.1 · [object Object]
Industry payments
$1.1K
22 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

JOHN BAKER, M.D., PH.D. reported a CMS MIPS final score of 83.7659/100 — above the 83.1 national average — and filed 18 Medicare Part D claims in 2023.

83.7659/100
MIPS score · +1 vs avg
18
Part D claims, 2023
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.

JOHN BAKER, M.D., PH.D.'s MIPS score vs every scored U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023 — the federal quality measure

84 42nd percentile higher than 42% of 477,587 scored providers

0–10: 8,684 scored providers (2%). Below this entry. 10–20: 3,008 scored providers (1%). Below this entry. 20–30: 3,069 scored providers (1%). Below this entry. 30–40: 2,746 scored providers (1%). Below this entry. 40–50: 2,928 scored providers (1%). Below this entry. 50–60: 5,882 scored providers (1%). Below this entry. 60–70: 13,906 scored providers (3%). Below this entry. 70–80: 118,074 scored providers (25%). Below this entry. 80–90: 129,887 scored providers (27%). This entry sits in this band. 90–100: 189,403 scored providers (40%). Above this entry. This provider 0 100 every MIPS-scored clinician, bucketed by value

Each bar is a band; taller bars hold more scored providers. 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 Merit-based Incentive Payment System (MIPS) · 2023

Board certification likely (heuristic — not verified)

JOHN BAKER, M.D., PH.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 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 JOHN BAKER, M.D., PH.D.?

Near national average

NPI registry status

Active

Issued 12/06/2005

NPI 1043294663

Primary specialty

Vascular Neurology Physician

Niche

555 US NPIs in this specialty

Medicare Part D claims

18 95% vs specialty avg

2023 prescription claims

Specialty avg: 378

MIPS final score

83.7659/100 0.6659000000000077% pts

Above neutral band

vs 83.1 national avg

Specialty distribution in Virginia

How Vascular Neurology Physician compares to other specialties among Virginia providers

Virginia providers

Vascular Neurology Physician share within Virginia

1. Vascular Neurology Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Vascular Neurology Physician share within Virginia

Medicare quality performance — MIPS

JOHN BAKER, M.D., PH.D.'s 2023 MIPS final score plotted against the Vascular Neurology Physician national average

Near national average
MIPS Final Score
83.7659/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Vascular Neurology Physician) — 83.7659/100 vs national avg 83.1

0%100%National avg83%83.8%
MIPS final score (Vascular Neurology Physician) — 83.7659/100 vs national avg 83.1

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).

JOHN BAKER, M.D., PH.D. is a Vascular Neurology Physician provider practicing in CHESAPEAKE, Virginia, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D., PH.D.. NPI: 1043294663. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

JOHN BAKER, M.D., PH.D. appears in the CMS NPPES registry as a Vascular Neurology Physician provider holding M.D., PH.D. credentials at 300 MEDICAL PKWY STE 212, CHESAPEAKE, VA, 23320, with a listed phone of (757) 312-5292. NPI 1043294663 was issued on 12/06/2005. 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 18 prescription claims written by this provider, covering N/A Medicare beneficiaries and totaling roughly $333 in drug spend. 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. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 83.7659/100 for the 2023 performance year (Quality 68.3538, Cost 77.5325), compared with the national average of 83.1.

Vascular Neurology Physician is a narrow specialty nationwide, with 555 enrolled providers across 47 states and an average of 378 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 MEDICAL PKWY STE 212
CHESAPEAKE, VA 23320

Provider Details

NPI 1043294663
Specialty Vascular Neurology Physician
Credentials M.D., PH.D.
Gender Male
NPI Issued 12/06/2005

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

83.7659
Final Score
Avg: 83.1
68.3538
Quality
77.5325
Cost
100
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where JOHN BAKER, M.D., PH.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.

CHESAPEAKE REGIONAL MEDICAL GROUP
CHESAPEAKE, VA

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

Industry payments received (2024) — CMS Open Payments transparency data

The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for JOHN BAKER, M.D., PH.D.. Source: openpaymentsdata.cms.gov.

Total received

$1.1K

Largest payer

Penumbra, Inc.

Most common payment type

Food and Beverage

Industry payments are not necessarily indicators of bias — they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

18
Total Claims
$333
Total Drug Cost
N/A
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
50
Total Day Supply
1,500
Brand Drug Cost
$0
Generic Drug Cost
$333

Patient Demographics

Average Patient Age
70.2 years
Avg HCC Risk Score
2.52

Vascular Neurology Physician Overview

How JOHN BAKER, M.D., PH.D. fits within the Vascular Neurology Physician landscape nationally.

555
Vascular Neurology Physician Providers in US
47
States with Vascular Neurology Physician
378
Avg Claims per Provider

JOHN BAKER, M.D., PH.D.'s 18 claims are below the specialty average of 378.

Nearby Vascular Neurology Physician Providers in Virginia

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

Compare Vascular Neurology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is JOHN BAKER, M.D., PH.D.'s specialty?
JOHN BAKER, M.D., PH.D. specializes in Vascular Neurology Physician and practices in CHESAPEAKE, Virginia. Credentials: M.D., PH.D..
How much does JOHN BAKER, M.D., PH.D. prescribe under Medicare Part D?
In 2023, JOHN BAKER, M.D., PH.D. wrote 18 Medicare Part D claims totaling $333 in drug costs for N/A beneficiaries.
What is JOHN BAKER, M.D., PH.D.'s Medicare quality score?
JOHN BAKER, M.D., PH.D. has a CMS MIPS Final Score of 83.7659/100 (Quality: 68.3538, Cost: 77.5325). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is JOHN BAKER, M.D., PH.D. located?
JOHN BAKER, M.D., PH.D. is located at 300 MEDICAL PKWY STE 212, CHESAPEAKE, VA, 23320. Phone: (757) 312-5292.
What is JOHN BAKER, M.D., PH.D.'s NPI number?
JOHN BAKER, M.D., PH.D.'s National Provider Identifier (NPI) is 1043294663, issued on 12/06/2005.
How many Vascular Neurology Physician providers are there in the US?
There are 555 Vascular Neurology Physician providers across 47 states in the US. The average Vascular Neurology Physician provider writes 378 Medicare Part D claims per year.
Does JOHN BAKER, M.D., PH.D. accept Medicare?
JOHN BAKER, M.D., PH.D. appears in CMS Medicare data with 18 Part D claims and N/A Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify JOHN BAKER, M.D., PH.D.'s credentials?
JOHN BAKER, M.D., PH.D.'s NPI is 1043294663 with credentials M.D., PH.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.
Quality Performance
CMS Merit-based Incentive Payment System (MIPS) — 2023 performance year.
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