Allison Tate Williams, PA-C

  • San Diego, CA
  • Physician assistant
NPI1073228862PAC ID6204292030
Medicare services, 2024
599
Medicare patients, 2024
291
Part D claims, 2024
321
MIPS score, 2024
89
Affiliated sites
1
Practice address
5651 Copley Dr, San Diego, CA 92111
Practice phone
Call (858) 262-6666
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Sharp Rees-Stealy Medical Group, Inc

San Diego, California

See all 4 affiliations

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Allison Tate Williams is a physician assistant in San Diego, California

Allison Williams practices at Sharp Rees-Stealy Medical Group, Inc in San Diego, California.

Allison Williams' NPI, 1073228862, was assigned on January 17, 2023.

NPI and contact details
Medicare PAC ID
6204292030
NPI enumeration date
January 17, 2023
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Practice phone
(858) 262-6666
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)

Allison Tate Williams practices at Sharp Rees-Stealy Medical Group, Inc in San Diego, California

Allison Williams' primary practice is Sharp Rees-Stealy Medical Group, Inc, at 5651 Copley Dr, San Diego, CA 92111 in San Diego County. The practice phone is (858) 262-6666.

  • Sharp Rees-Stealy Medical Group, Inc
    5651 Copley Dr, San Diego, CA 92111 · San Diego CountyPhone(858) 262-6666

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

Allison Tate Williams is affiliated with 2 sites of care and 2 medical groups

Allison Williams' primary practice is Sharp Rees-Stealy Medical Group, Inc in San Diego, California. The medical group on file is Sharp Rees-Stealy Medical Group. Dmand AI also links Allison Williams to 1 more group practice or clinic and 1 medical group, each named with a free account.

See all 4 affiliations for Allison Williams

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

Dmand AI tracks the EHR system at Allison Tate Williams' practice

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

EHR by site
SiteEHR vendor and product
Sharp Rees-Stealy Medical Group, IncAvailable with a free account
+1 more site and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

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Allison Tate Williams is one of 11,482 physician assistants in California

Physician assistant is Allison Williams' primary specialty in the NPI Registry, under taxonomy code 363A00000X.

Specialties and state licenses

  • Physician assistantPrimarytaxonomy 363A00000X

Physician assistants near Allison Williams

Counts of physician assistants 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

Allison Tate Williams billed Medicare for 599 services in 2024

CMS data shows 599 Medicare services from Allison Williams across 6 procedure codes in 2024, for 291 Medicare patients. Medicare paid $39,583 for them. Every service was in an office.

Medicare services, 2024599
Medicare patients291
Paid by Medicare$39,583
Procedure codes6

Allison Williams' Medicare services by type, 2024

  1. Office and hospital visits391
  2. Surgery123
  3. Tests and treatments85

Allison Williams compared with the California median for physician assistants, 2024

  • Allison Williams
  • California median
Medicare services
599vs 2042.9 times
Medicare patients
291vs 1052.8 times
Part D claims
214vs 24312% below

Medians across 7,065 physician assistants in California with Dmand AI profiles that report each measure.

Allison 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 Allison Williams

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

Allison Tate Williams treated 291 Medicare patients in 2024, average age 75

CMS counts 291 Medicare patients who saw Allison Williams in 2024. The largest group is 65 to 74, with 146 patients. 65% of them have high blood pressure, and 65% have high cholesterol. 10% are also on Medicaid. Their average risk score is 1.10, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Allison Williams' median patient age at 52, with 60% women.

Medicare patients, 2024291
Average age75
Average risk score1.10
Also on Medicaid10%

Allison Williams' Medicare patients by age, 2024

Allison Williams' Medicare patients by sex, 2024

  • Women16657%
  • Men12543%

Chronic conditions among Allison Williams' Medicare patients, 2024

  1. High blood pressure65%
  2. High cholesterol65%
  3. Arthritis45%
  4. Ischemic heart disease24%
  5. Atrial fibrillation21%
  6. Diabetes21%
  7. Mood disorders19%
  8. Chronic kidney disease18%

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

Allison Williams' patients across all payers

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

Patient panel by age, all payers

Median age 52

Patient panel by sex, all payers

  • Women60%
  • Men38%

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

Allison Tate Williams wrote 321 Medicare Part D claims in 2024

In 2024, Allison Williams wrote 321 Medicare Part D claims for 198 patients. 95% of them were for generic drugs. CMS names the drug for 214 of them, across 10 drugs with 11 or more claims each, at $5,376 in total drug cost.

Part D claims, 2024321
Drugs named by CMS10
Total drug cost$5,376
Part D patients198

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

  • Generic304 claims95%
  • Brand-name17 claims5%

Allison 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 Allison Williams' Part D claims, 2024

  • Antibiotics33%105 of 321 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 Allison 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

Allison Tate Williams scored 89 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 89 out of 100 for Allison Williams for performance year 2024, reported as part of a group. Allison Williams accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Allison Williams as offering telehealth.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Allison Williams' MIPS scores, performance year 2024

  • 89of 100Final score
  • 81of 100Quality
  • 99of 100Promoting Interoperability
  • 40of 100Improvement Activities
  • 82of 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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Sources for Allison Tate 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)
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 Allison Tate 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 Allison Tate Williams' NPI number?

Allison Tate Williams' NPI number is 1073228862. It was assigned on January 17, 2023, and it is active in the NPI Registry.

What does Allison Tate Williams specialize in?

Allison Tate Williams is a physician assistant in San Diego, California. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).

Where does Allison Tate Williams practice?

Allison Williams practices at 5651 Copley Dr, San Diego, CA 92111. Allison Williams' primary practice is Sharp Rees-Stealy Medical Group, Inc in San Diego, California. Dmand AI also links Allison Williams to 1 group practice or clinic and 1 medical group.

What is Allison Tate Williams' office phone number?

The practice phone on file for Allison Williams is (858) 262-6666.

What medical group is Allison Tate Williams part of?

Allison Williams is linked to Sharp Rees-Stealy Medical Group. Dmand AI links Allison Williams to 1 more medical group.

Does Allison Tate Williams accept Medicare?

Yes. CMS data shows Allison Williams billed Medicare for 599 services in 2024, and Allison Williams accepts Medicare assignment.

Does Allison Tate Williams offer telehealth?

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

What is Allison Tate Williams' MIPS score?

Allison Williams' MIPS final score for performance year 2024 is 89 out of 100, reported as part of a group.

How many Medicare patients does Allison Tate Williams see?

CMS counts 291 Medicare patients who saw Allison Williams in 2024, with an average age of 75.

What services does Allison Tate Williams bill to Medicare?

In 2024, Allison Williams' most billed Medicare services were office visit, established patient (99213), office visit, new patient (99203) and ear, nose and throat service (92504).

What drugs does Allison Tate Williams prescribe most?

In 2024 Medicare Part D data, Allison Williams' most prescribed drugs by claims were Fluticasone Propionate, Amoxicillin-Clavulanate Potass and Ciprofloxacin-Dexamethasone.

How long has Allison Tate Williams been practicing?

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

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