Gregory S. Baker, PA-C

  • Taft, CA
  • Physician assistant
NPI1205924222PAC ID6002051836
Medicare services, 2024
2,726
Medicare patients, 2024
389
Part D claims, 2024
11,584
MIPS score, 2024
34
Hospital affiliations
1
Practice address
333 S 10th St, Taft, CA 93268
Practice phone
Call (661) 323-2295
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Central Valley Medical Group

Taft, California

See all 6 affiliations

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Gregory S. Baker is a physician assistant in Taft, California

Gregory Baker practices at Central Valley Medical Group in Taft, California.

Gregory Baker's NPI, 1205924222, was assigned on October 11, 2006. Gregory Baker holds California license PA13923.

NPI and contact details
Medicare PAC ID
6002051836
NPI enumeration date
October 11, 2006
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Practice phone
(661) 323-2295
Professional email
Get email
Personal email
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Mobile number
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Sex
Male
Estimated age
56
Medical school graduation
1996

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

Gregory S. Baker practices at Central Valley Medical Group in Taft, California

Gregory Baker's primary practice is Central Valley Medical Group, at 333 S 10th St, Taft, CA 93268 in Kern County. The practice phone is (661) 323-2295.

  • Central Valley Medical Group
    333 S 10th St, Taft, CA 93268 · Kern CountyPhone(661) 323-2295

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

Gregory S. Baker is affiliated with 5 sites of care and 1 medical group

Gregory Baker's primary practice is Central Valley Medical Group in Taft, California. Gregory Baker is also affiliated with Adventist Health Bakersfield. The medical group on file is Central Valley Medical Group. Dmand AI also links Gregory Baker to 2 more home health agencies and 1 group practice or clinic, each named with a free account.

See all 6 affiliations for Gregory Baker

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

Dmand AI tracks the EHR system at Gregory S. Baker's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Gregory Baker practices, 4 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Central Valley Medical GroupAvailable with a free account
+4 more affiliated sitesAvailable with a free account

Source: Dmand AI Technology Install Data

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Gregory S. Baker is one of 11,482 physician assistants in California

Physician assistant is Gregory Baker's primary specialty in the NPI Registry, under taxonomy code 363A00000X. Gregory Baker is licensed in California.

Specialties and state licenses

  • Physician assistant, CaliforniaPrimaryLicense PA13923 · taxonomy 363A00000X

Clinical focus

Dmand AI lists acute gastroduodenitis, acute sinusitis, acute skin infection, ADHD, adjustment disease, alzheimer's disease, anxiety and arthritis among the conditions Gregory Baker treats.

Physician assistants near Gregory Baker

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

11,482physician assistants in California
4physician assistants in Taft

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

Gregory S. Baker billed Medicare for 2,726 services in 2024

CMS data shows 2,726 Medicare services from Gregory Baker across 21 procedure codes in 2024, for 389 Medicare patients. Medicare paid $197,645 for them. Every service was in an office.

Medicare services, 20242,726
Medicare patients389
Paid by Medicare$197,645
Procedure codes21

Gregory Baker's Medicare services by type, 2024

  1. Office and hospital visits2,377
  2. Tests and treatments137
  3. Drugs given in the office81
  4. Lab and pathology80
  5. Other services29
  6. Surgery22

Gregory Baker compared with the California median for physician assistants, 2024

  • Gregory Baker
  • California median
Medicare services
2,726vs 20413.4 times
Medicare patients
389vs 1053.7 times
Part D claims
10,827vs 24344.6 times

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

Gregory Baker's 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 Gregory Baker

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

Gregory S. Baker treated 389 Medicare patients in 2024, average age 68

CMS counts 389 Medicare patients who saw Gregory Baker in 2024. The largest group is 65 to 74, with 181 patients. 75% of them have high blood pressure, and 72% have high cholesterol. 63% are also on Medicaid. Their average risk score is 1.39, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Gregory Baker's median patient age at 60, with 55% women.

Medicare patients, 2024389
Average age68
Average risk score1.39
Also on Medicaid63%

Gregory Baker's Medicare patients by age, 2024

Gregory Baker's Medicare patients by sex, 2024

  • Women22257%
  • Men16743%

Chronic conditions among Gregory Baker's Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol72%
  3. Arthritis53%
  4. Diabetes41%
  5. Anxiety35%
  6. COPD34%
  7. Ischemic heart disease33%
  8. Mood disorders29%

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

Gregory Baker's patients across all payers

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

Patient panel by age, all payers

Median age 60

Patient panel by sex, all payers

  • Women55%
  • Men45%

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

Gregory S. Baker wrote 11,584 Medicare Part D claims in 2024

In 2024, Gregory Baker wrote 11,584 Medicare Part D claims for 451 patients. 84% of them were for generic drugs. CMS names the drug for 10,827 of them, across 166 drugs with 11 or more claims each, at $1,075,277 in total drug cost.

Part D claims, 202411,584
Drugs named by CMS166
Total drug cost$1.1M
Part D patients451

Gregory Baker's Part D claims by kind of drug, 2024

  • Generic9,733 claims84%
  • Brand-name1,799 claims16%
  • Other52 claims0%

Gregory Baker's 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 Gregory Baker's Part D claims, 2024

  • Opioids7%868 of 11,584 claims
  • Antibiotics2%284 of 11,584 claims
  • Antipsychotics, patients 65 and over1%97 of 11,584 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 Gregory Baker

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

Gregory S. Baker scored 34 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 34 out of 100 for Gregory Baker for performance year 2024, reported individually. Gregory Baker accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Gregory Baker as offering telehealth.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Gregory Baker's MIPS scores, performance year 2024

  • 34of 100Final score
  • 15of 100Quality
  • 0of 100Improvement Activities
  • 67of 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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Gregory S. Baker received $7,640 in industry payments from 2024 to 2025

CMS Open Payments shows 350 general payments to Gregory Baker from 36 drug and device companies from 2024 to 2025. Food and beverage make up the largest share, 98% of the total. Teva Pharmaceuticals USA, Inc. paid the most, $790.

General payments to Gregory Baker by program year, 2024 to 2025

General payments to Gregory Baker by kind, 2024 to 2025

$7.6Kin total
  • Food and beverage$7,48398%
  • Education$1572%

Companies that paid Gregory Baker the most, 2024 to 2025

Share is of all general payments to this clinician.

See all payments to Gregory Baker

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

Sources for Gregory S. Baker'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)
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 Gregory S. Baker

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

What is Gregory S. Baker's NPI number?

Gregory S. Baker's NPI number is 1205924222. It was assigned on October 11, 2006, and it is active in the NPI Registry.

What does Gregory S. Baker specialize in?

Gregory S. Baker is a physician assistant in Taft, California. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).

Where does Gregory S. Baker practice?

Gregory Baker practices at 333 S 10th St, Taft, CA 93268. Gregory Baker's primary practice is Central Valley Medical Group in Taft, California. Dmand AI also links Gregory Baker to 2 home health agencies and 1 group practice or clinic.

What is Gregory S. Baker's office phone number?

The practice phone on file for Gregory Baker is (661) 323-2295.

What is Gregory S. Baker's medical license number?

Gregory Baker holds California license PA13923.

Which hospitals is Gregory S. Baker affiliated with?

Gregory Baker is affiliated with Adventist Health Bakersfield.

What medical group is Gregory S. Baker part of?

Gregory Baker is linked to Central Valley Medical Group.

Does Gregory S. Baker accept Medicare?

Yes. CMS data shows Gregory Baker billed Medicare for 2,726 services in 2024, and Gregory Baker accepts Medicare assignment.

Does Gregory S. Baker offer telehealth?

Yes. The CMS Doctors and Clinicians file lists Gregory Baker as offering telehealth services.

What is Gregory S. Baker's MIPS score?

Gregory Baker's MIPS final score for performance year 2024 is 34 out of 100, reported individually.

Show 5 more questionsShow fewer questions

How many Medicare patients does Gregory S. Baker see?

CMS counts 389 Medicare patients who saw Gregory Baker in 2024, with an average age of 68.

What services does Gregory S. Baker bill to Medicare?

In 2024, Gregory Baker's most billed Medicare services were office visit, established patient (99214), office visit, established patient (99215) and care management and other visits (99443).

What drugs does Gregory S. Baker prescribe most?

In 2024 Medicare Part D data, Gregory Baker's most prescribed drugs by claims were Hydrocodone-Acetaminophen, Atorvastatin Calcium and Amlodipine Besylate.

Has Gregory S. Baker received payments from drug or device companies?

CMS Open Payments shows $7,640 in general payments to Gregory Baker from 36 companies from 2024 to 2025. The largest total came from Teva Pharmaceuticals USA, Inc.

How long has Gregory S. Baker been practicing?

Gregory Baker graduated from medical school in 1996, 30 years ago.

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