Medicare payment locality · Q2 2026 release

Modesto, Ca CA Medicare Locality 60

MAC 01112 · Locality 60

This locality's GPCIs are mixed, so the net payment effect varies by code for the Q2 2026 Physician Fee Schedule. For nationally priced services, Medicare adjusts each code's work, practice-expense, and malpractice RVUs using these indexes.

Work GPCI

1.017

Adjusts the physician-work component for professional labor costs

Practice expense GPCI

1.096

Adjusts practice-expense inputs such as staff, rent, and services

Malpractice GPCI

0.536

Adjusts the malpractice component using liability-cost data

1.000 is the national baseline. Above raises that component; below lowers it. GPCIs are Medicare payment factors, not general cost-of-living or physician-compensation indexes.

Example rates in Modesto, Ca Copy link

National vs. Modesto, Ca office (non-facility) amounts for frequently reviewed codes, Q2 2026 (before sequestration). Conversion factor: 2026 standard (non-QP) physician conversion factor · $33.4009.

Code	National	Modesto, Ca	Difference
99214	$135.61	$140.94	+3.9%
99213	$95.19	$99.22	+4.2%
99215	$192.39	$199.54	+3.7%
66984	$462.60	$477.99	+3.3%
99204	$177.36	$183.04	+3.2%
92014	$127.26	$134.98	+6.1%
97110	$29.06	$30.47	+4.9%
88305	$70.14	$74.58	+6.3%
97530	$35.07	$37.09	+5.8%
99203	$117.57	$121.64	+3.5%

Need a specific code or a facility rate? Use the rate calculator with this locality selected. Or start from your field's usual procedure mix on the specialty fee schedules.

ZIP codes in this locality Copy link

Modesto, Ca covers 29 ZIP codes across CA, per the CMS ZIP-to-locality crosswalk (Q2 2026). 5 of them span more than one locality and need ZIP+4 for an exact match.

95307 95313 95316 95319 95323 95326 95328 95329 95350 95351 95352 95353 95354 95355 95356 95357 95358 95360 95361 95363 95367 95368 95380 95381 95382 95386 95387 95390 95397

Not sure which locality your ZIP is in? Look it up by ZIP code.

Common questions Copy link

Why do Medicare rates in Modesto, Ca differ from the national amount?

For nationally priced Physician Fee Schedule services, Medicare adjusts each code's work, practice-expense, and malpractice RVUs by this locality's three GPCIs before applying the conversion factor. Local professional labor, office-input, and liability costs therefore move the final amount up or down. Modesto, Ca currently has mixed GPCI components, so the net payment effect varies by code for the Q2 2026 release.

How do I know if my address is in this locality?

Medicare payment localities are geographic fee-schedule areas, commonly defined with county boundaries. CMS uses the service-location ZIP code to map a claim to the applicable carrier and locality. Look up your ZIP to find your locality. About 5 ZIP codes in Modesto, Ca span more than one locality and need the ZIP+4 to resolve exactly.

Do commercial insurers or Medicare Advantage plans use this locality?

Original Medicare uses these PFS localities directly. Commercial and Medicare Advantage plans are not required to use the same locality structure. A contract may benchmark payment to Medicare, but its language controls the Medicare release, percentage, geographic basis, and other adjustments.

Does my locality affect what I owe as a patient?

For a particular covered service, a higher locality-adjusted allowed amount generally produces a higher percentage-based coinsurance amount. The effect depends on the code, the beneficiary's deductible, supplemental coverage, and other claim circumstances.

Why did my Medicare payment change even though I didn't change what I billed?

CMS publishes updated PFS files during the year. A code's amount can change because of conversion-factor, RVU, policy, or correction updates. GPCI policy values are generally established through annual rulemaking, although later files can contain corrections. See what changed each release.

Source & method Copy link

GPCIs and rates computed from the CMS Medicare Physician Fee Schedule Q2 2026 release (effective April 2026). ZIP coverage from the CMS ZIP-to-locality crosswalk, Q2 2026 release . Example amounts use the standard (non-QP) physician conversion factor ($33.4009) and apply this locality's GPCIs to nationally priced non-facility RVUs, before the ~2% sequestration cut. Releases are immutable: a rate retrieved for a past quarter always reflects that PFS release.

Geographic practice cost indices (Q2 2026) · rvu26b-updated-05-01-2026.zip (GPCI2026.csv row 16)

ZIP code to carrier locality crosswalk (Q2 2026) · zip-code-carrier-locality-file-revised-02-18-2026.zip (ZIP5_APR2026.txt)

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