Jennifer Anne Williams, PA-C

  • Fairfield, CT
  • Surgical physician assistant
NPI1659557643PAC ID4284718321
Medicare services, 2024
167
Medicare patients, 2024
134
Part D claims, 2024
71
Hospital affiliations
1
Industry payments
$293
Practice address
501 Kings E Hwy, Fairfield, CT 06825
Practice phone
Call (860) 561-1233
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Dental Sedation Center of Connecticut

Fairfield, Connecticut

See all 8 affiliations

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Jennifer Anne Williams is a surgical physician assistant in Fairfield, Connecticut

Jennifer Williams practices at Dental Sedation Center of Connecticut in Fairfield, Connecticut.

Jennifer Williams' NPI, 1659557643, was assigned on January 21, 2008. Jennifer Williams holds Connecticut license 002056.

NPI and contact details
Medicare PAC ID
4284718321
NPI enumeration date
January 21, 2008
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(860) 561-1233
Professional email
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Personal email
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Mobile number
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Sex
Female
Estimated age
58
Medical school graduation
1994

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)

Jennifer Anne Williams practices at Dental Sedation Center of Connecticut in Fairfield, Connecticut

Jennifer Williams' primary practice is Dental Sedation Center of Connecticut, at 501 Kings E Hwy, Fairfield, CT 06825 in Greater Bridgeport County. The practice phone is (860) 561-1233.

  • Dental Sedation Center of Connecticut
    501 Kings E Hwy, Fairfield, CT 06825 · Greater Bridgeport CountyPhone(860) 561-1233

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

Jennifer Anne Williams is affiliated with 3 sites of care and 5 medical groups

Jennifer Williams' primary practice is Dental Sedation Center of Connecticut in Fairfield, Connecticut. Jennifer Williams is also affiliated with Griffin Hospital. The medical group on file is Connecticut Vascular Surgical Associates. Dmand AI also links Jennifer Williams to 4 more medical groups and 1 group practice or clinic, each named with a free account.

See all 8 affiliations for Jennifer Williams

Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data

Dmand AI tracks the EHR system at Jennifer Anne Williams' practice

Dmand AI tracks the electronic health record (EHR) system at each site where Jennifer Williams practices, 2 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Dental Sedation Center of ConnecticutAvailable with a free account
+2 more sites and 4 medical groupsAvailable with a free account

Source: Dmand AI Technology Install Data

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Jennifer Anne Williams is one of 699 surgical physician assistants in Connecticut

Surgical is Jennifer Williams' primary specialty in the NPI Registry, under taxonomy code 363AS0400X. Jennifer Williams is board certified in certified physician assistant by the National Commission on Certification of Physician Assistants (NCCPA). Jennifer Williams is licensed in Connecticut.

Specialties and state licenses

  • Surgical physician assistant, ConnecticutPrimaryLicense 002056 · taxonomy 363AS0400X

Surgical physician assistants near Jennifer Williams

Counts of surgical physician assistants with a Dmand AI profile, by place and practice. Each opens the list.

699surgical physician assistants in Connecticut
3surgical physician assistants in Fairfield

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Jennifer Anne Williams billed Medicare for 167 services in 2024

CMS data shows 167 Medicare services from Jennifer Williams across 3 procedure codes in 2024, all of them office visits, for 134 Medicare patients. Medicare paid $10,888 for them. Every service was in an office.

Medicare services, 2024167
Medicare patients134
Paid by Medicare$10,888
Procedure codes3

Jennifer Williams compared with the Connecticut median for surgical physician assistants, 2024

  • Jennifer Williams
  • Connecticut median
Medicare services
167vs 10756% above
Medicare patients
134vs 482.8 times
Part D claims
45vs 10457% below

Medians across 524 surgical physician assistants in Connecticut with Dmand AI profiles that report each measure.

Jennifer Williams' most billed Medicare procedure codes, 2024

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

See all procedures by Jennifer Williams

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Jennifer Anne Williams treated 134 Medicare patients in 2024, average age 77

CMS counts 134 Medicare patients who saw Jennifer Williams in 2024. The largest group is 75 to 84, with 53 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 25% are also on Medicaid. Their average risk score is 2.28, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Jennifer Williams' median patient age at 66, with 61% women.

Medicare patients, 2024134
Average age77
Average risk score2.28
Also on Medicaid25%

Jennifer Williams' Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Jennifer Williams' Medicare patients by sex, 2024

  • Women7354%
  • Men6146%

Chronic conditions among Jennifer Williams' Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol75%
  3. Arthritis48%
  4. Diabetes48%
  5. Chronic kidney disease38%
  6. Ischemic heart disease36%
  7. Anxiety34%
  8. Mood disorders31%

Share of Medicare patients with each condition. A patient can have several.

Jennifer Williams' patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 66

Patient panel by sex, all payers

  • Women61%
  • Men38%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Jennifer Anne Williams wrote 71 Medicare Part D claims in 2024

In 2024, Jennifer Williams wrote 71 Medicare Part D claims for 24 patients. 46% of them were for generic drugs. CMS names the drug for 45 of them, across 2 drugs with 11 or more claims each, at $24,060 in total drug cost.

Part D claims, 202471
Drugs named by CMS2
Total drug cost$24,060
Part D patients24

Jennifer Williams' Part D claims by kind of drug, 2024

  • Generic33 claims46%
  • Brand-name38 claims54%

Jennifer Williams' most prescribed drugs by claims, 2024

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

See all prescribing by Jennifer Williams

Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data

How Jennifer Anne Williams takes part in Medicare

Jennifer Williams accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Source: Doctors and Clinicians National Downloadable File (CMS)

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Jennifer Anne Williams received $293 in industry payments in 2025

CMS Open Payments shows 5 general payments to Jennifer Williams from 3 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. Endologix, Inc. paid the most, $168.

Companies that paid Jennifer Williams the most, 2025 to 2025

Share is of all general payments to this clinician.

See all payments to Jennifer Williams

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Jennifer Anne Williams is board certified in certified physician assistant

  1. Board certified in certified physician assistantNational Commission on Certification of Physician Assistants (NCCPA)

Source: Dmand AI Professional Profile Data

Sources for Jennifer Anne Williams's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Jennifer Anne Williams

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Jennifer Anne Williams' NPI number?

Jennifer Anne Williams' NPI number is 1659557643. It was assigned on January 21, 2008, and it is active in the NPI Registry.

What does Jennifer Anne Williams specialize in?

Jennifer Anne Williams is a surgical physician assistant in Fairfield, Connecticut. The primary specialty in the NPI Registry is Surgical Physician Assistant (taxonomy code 363AS0400X).

Where does Jennifer Anne Williams practice?

Jennifer Williams practices at 501 Kings E Hwy, Fairfield, CT 06825. Jennifer Williams' primary practice is Dental Sedation Center of Connecticut in Fairfield, Connecticut. Dmand AI also links Jennifer Williams to 4 medical groups and 1 group practice or clinic.

What is Jennifer Anne Williams' office phone number?

The practice phone on file for Jennifer Williams is (860) 561-1233.

What is Jennifer Anne Williams' medical license number?

Jennifer Williams holds Connecticut license 002056.

Which hospitals is Jennifer Anne Williams affiliated with?

Jennifer Williams is affiliated with Griffin Hospital.

What medical group is Jennifer Anne Williams part of?

Jennifer Williams is linked to Connecticut Vascular Surgical Associates. Dmand AI links Jennifer Williams to 4 more medical groups.

Does Jennifer Anne Williams accept Medicare?

Yes. CMS data shows Jennifer Williams billed Medicare for 167 services in 2024, and Jennifer Williams accepts Medicare assignment.

How many Medicare patients does Jennifer Anne Williams see?

CMS counts 134 Medicare patients who saw Jennifer Williams in 2024, with an average age of 77.

Is Jennifer Anne Williams board certified?

Yes. Jennifer Williams is board certified in certified physician assistant by the National Commission on Certification of Physician Assistants (NCCPA).

Show 4 more questionsShow fewer questions

What services does Jennifer Anne Williams bill to Medicare?

In 2024, Jennifer Williams' most billed Medicare services were office visit, established patient (99213), office visit, new patient (99203) and office visit, new patient (99202).

What drugs does Jennifer Anne Williams prescribe most?

In 2024 Medicare Part D data, Jennifer Williams' most prescribed drugs by claims were Eliquis and Pentoxifylline.

Has Jennifer Anne Williams received payments from drug or device companies?

CMS Open Payments shows $293 in general payments to Jennifer Williams from 3 companies from 2025 to 2025. The largest total came from Endologix, Inc.

How long has Jennifer Anne Williams been practicing?

Jennifer Williams graduated from medical school in 1994, 32 years ago.

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