Whitney C. Williams, FNP

  • Fremont, CA
  • Family nurse practitioner
NPI1619430808PAC ID0648503755
Medicare services, 2024
1,638
Medicare patients, 2024
162
Part D claims, 2024
950
MIPS score, 2024
88
Hospital affiliations
1
Practice address
39500 Fremont Blvd, Fremont, CA 94538
Practice phone
Call (510) 248-1000
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Washington Township Medical Foundation

Fremont, California

See all 6 affiliations

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Whitney C. Williams is a family nurse practitioner in Fremont, California

Whitney Williams practices at Washington Township Medical Foundation in Fremont, California.

Whitney Williams' NPI, 1619430808, was assigned on April 13, 2019. Whitney Williams holds California license 95010853.

NPI and contact details
Medicare PAC ID
0648503755
NPI enumeration date
April 13, 2019
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Practice phone
(510) 248-1000
Professional email
Get email
Personal email
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Mobile number
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Sex
Female
Estimated age
34
Medical school graduation
2018

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

Whitney C. Williams practices at Washington Township Medical Foundation in Fremont, California

Whitney Williams' primary practice is Washington Township Medical Foundation, at 39500 Fremont Blvd, Fremont, CA 94538 in Alameda County. The practice phone is (510) 248-1000.

  • Washington Township Medical Foundation
    39500 Fremont Blvd, Fremont, CA 94538 · Alameda CountyPhone(510) 248-1000

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

Whitney C. Williams is affiliated with 4 sites of care and 2 medical groups

Whitney Williams' primary practice is Washington Township Medical Foundation in Fremont, California. Whitney Williams is also affiliated with Washington Health. The medical group on file is Washington Health Medical Group. Dmand AI also links Whitney Williams to 1 more group practice or clinic, 1 skilled nursing facility and 1 medical group, each named with a free account.

See all 6 affiliations for Whitney Williams

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

Dmand AI tracks the EHR system at Whitney C. Williams' practice

Dmand AI tracks the electronic health record (EHR) system at each site where Whitney Williams practices, 3 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Washington Township Medical FoundationAvailable with a free account
+3 more sites and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

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Whitney C. Williams is one of 13,532 family nurse practitioners in California

Family is Whitney Williams' primary specialty in the NPI Registry, under taxonomy code 363LF0000X. Whitney Williams is licensed in California.

Specialties and state licenses

  • Family nurse practitioner, CaliforniaPrimaryLicense 95010853 · 2019 to 2026 · taxonomy 363LF0000X

Clinical focus

Dmand AI lists acute gastroduodenitis, arthritis, asthma, bronchitis, chronic diabetes, chronic nasal allergies, cold sores or genital herpes and contact dermatitis among the conditions Whitney Williams treats.

Family nurse practitioners near Whitney Williams

Counts of family nurse practitioners with a Dmand AI profile, by place and practice. Each opens the list.

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

Whitney C. Williams billed Medicare for 1,638 services in 2024

CMS data shows 1,638 Medicare services from Whitney Williams across 10 procedure codes in 2024, for 162 Medicare patients. Medicare paid $59,645 for them. Every service was in an office.

Medicare services, 20241,638
Medicare patients162
Paid by Medicare$59,645
Procedure codes10

Whitney Williams' Medicare services by type, 2024

  1. Office and hospital visits958
  2. Surgery532
  3. Tests and treatments148

Whitney Williams compared with the California median for family nurse practitioners, 2024

  • Whitney Williams
  • California median
Medicare services
1,638vs 2347.0 times
Medicare patients
162vs 9080% above
Part D claims
566vs 36057% above

Medians across 6,382 family nurse practitioners in California with Dmand AI profiles that report each measure.

Whitney 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 Whitney Williams

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

Whitney C. Williams treated 162 Medicare patients in 2024, average age 85

CMS counts 162 Medicare patients who saw Whitney Williams in 2024. The largest group is 85 and over, with 81 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 46% are also on Medicaid. Their average risk score is 1.90, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Whitney Williams' median patient age at 66, with 56% women.

Medicare patients, 2024162
Average age85
Average risk score1.90
Also on Medicaid46%

Whitney Williams' Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Whitney Williams' Medicare patients by sex, 2024

  • Women9961%
  • Men6339%

Chronic conditions among Whitney Williams' Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol75%
  3. Arthritis65%
  4. Chronic kidney disease59%
  5. Diabetes51%
  6. Atrial fibrillation36%
  7. Mood disorders33%
  8. Ischemic heart disease32%

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

Whitney 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

  • Women56%
  • Men43%

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

Whitney C. Williams wrote 950 Medicare Part D claims in 2024

In 2024, Whitney Williams wrote 950 Medicare Part D claims for 114 patients. 79% of them were for generic drugs. CMS names the drug for 566 of them, across 30 drugs with 11 or more claims each, at $57,192 in total drug cost.

Part D claims, 2024950
Drugs named by CMS30
Total drug cost$57,192
Part D patients114

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

  • Generic754 claims79%
  • Brand-name178 claims19%
  • Other18 claims2%

Whitney 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.

Drug classes CMS tracks in Whitney Williams' Part D claims, 2024

  • Opioids2%21 of 950 claims
  • Antibiotics9%87 of 950 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

See all prescribing by Whitney 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

Whitney C. Williams scored 88 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 88 out of 100 for Whitney Williams for performance year 2024, reported as part of a group. Whitney Williams accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Whitney Williams as offering telehealth.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Whitney Williams' MIPS scores, performance year 2024

  • 88of 100Final score
  • 66.5of 100Quality
  • 100of 100Promoting Interoperability
  • 40of 100Improvement Activities
  • 76of 100Cost

Each score is out of 100. The final score weighs the categories CMS scored for this clinician.

Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026

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Whitney C. Williams received $149 in industry payments from 2024 to 2025

CMS Open Payments shows 3 general payments to Whitney Williams from 3 drug and device companies from 2024 to 2025. Food and beverage make up the largest share, 100% of the total. Otsuka America Pharmaceutical, Inc. paid the most, $103.

General payments to Whitney Williams by program year, 2024 to 2025

Companies that paid Whitney Williams the most, 2024 to 2025

Share is of all general payments to this clinician.

See all payments to Whitney Williams

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

Whitney C. Williams accepts plans from 15 insurance carriers

Whitney Williams is in network with 15 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. PPO plans come from the most carriers, 10. Check the plan with the practice before a visit.

  • Aetna
  • Blue Cross Blue Shield of Michigan
  • United Healthcare
  • Elevance
  • HCSC
  • Blue Cross Blue Shield of Massachusetts
  • Humana
  • Regence Health Plans
  • +7 more carriersWith a free account

Plan types Whitney Williams accepts, by number of carriers

  1. PPO10
  2. Medicare8
  3. HMO6
  4. EPO4
  5. POS4

Source: Dmand AI Insurance Network Data

Sources for Whitney C. 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)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Insurance carriers and plan typesDmand AI Insurance Network 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 Whitney C. 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 Whitney C. Williams' NPI number?

Whitney C. Williams' NPI number is 1619430808. It was assigned on April 13, 2019, and it is active in the NPI Registry.

What does Whitney C. Williams specialize in?

Whitney C. Williams is a family nurse practitioner in Fremont, California. The primary specialty in the NPI Registry is Family Nurse Practitioner (taxonomy code 363LF0000X).

Where does Whitney C. Williams practice?

Whitney Williams practices at 39500 Fremont Blvd, Fremont, CA 94538. Whitney Williams' primary practice is Washington Township Medical Foundation in Fremont, California. Dmand AI also links Whitney Williams to 1 group practice or clinic, 1 skilled nursing facility and 1 medical group.

What is Whitney C. Williams' office phone number?

The practice phone on file for Whitney Williams is (510) 248-1000.

What is Whitney C. Williams' medical license number?

Whitney Williams holds California license 95010853.

Which hospitals is Whitney C. Williams affiliated with?

Whitney Williams is affiliated with Washington Health.

What medical group is Whitney C. Williams part of?

Whitney Williams is linked to Washington Health Medical Group. Dmand AI links Whitney Williams to 1 more medical group.

Does Whitney C. Williams accept Medicare?

Yes. CMS data shows Whitney Williams billed Medicare for 1,638 services in 2024, and Whitney Williams accepts Medicare assignment.

Does Whitney C. Williams offer telehealth?

Yes. The CMS Doctors and Clinicians file lists Whitney Williams as offering telehealth services.

What is Whitney C. Williams' MIPS score?

Whitney Williams' MIPS final score for performance year 2024 is 88 out of 100, reported as part of a group.

Show 6 more questionsShow fewer questions

How many Medicare patients does Whitney C. Williams see?

CMS counts 162 Medicare patients who saw Whitney Williams in 2024, with an average age of 85.

What services does Whitney C. Williams bill to Medicare?

In 2024, Whitney Williams' most billed Medicare services were surgery: heart and blood vessels (36415), office visit, established patient (99212) and office visit, established patient (99213).

What drugs does Whitney C. Williams prescribe most?

In 2024 Medicare Part D data, Whitney Williams' most prescribed drugs by claims were Gabapentin, Ozempic and Amlodipine Besylate.

Has Whitney C. Williams received payments from drug or device companies?

CMS Open Payments shows $149 in general payments to Whitney Williams from 3 companies from 2024 to 2025. The largest total came from Otsuka America Pharmaceutical, Inc.

How long has Whitney C. Williams been practicing?

Whitney Williams graduated from medical school in 2018, 8 years ago.

What insurance does Whitney C. Williams accept?

Whitney Williams is in network with 15 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. PPO plans come from the most carriers, 10. Check the plan with the practice before a visit.

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