HPSM Medi-Cal

Prescriptions & Pharmacies

Covered drugs

  • Brand and generic drugs in the Medi-Cal Formulary that are prescribed by a licensed medical practitioner, including:
    • Stop smoking patch or gum
    • Prenatal vitamins
    • Birth control
  • Some over-the-counter medicines may be covered if you have a doctor’s prescription
  • Non-formulary drugs that your doctor prescribes and gets prior authorization from HPSM
  • Before covering some medications, HPSM may require that you try a “Step 1” medication.

Not covered

  • Experimental medicines



  • Pharmacies may charge a $1 co-pay for some prescription drugs
  • Most HPSM pharmacies do not charge HPSM members any co-pays
  • Both generic and brand-name drugs prescribed by your doctor are covered by the plan

Check with your provider or pharmacy to see whether you will be charged a $1 co-pay for medications you receive.

Search for a covered drug

Use the formulary search form to find a covered drug by generic or brand name, or view all drugs within a category.

Formulary Changes

See the list of drugs that were added, removed or updated in the Medi-Cal Formulary.

Pharmacy Network

Filling prescriptions

In general, your prescriptions are covered only if they are filled at HPSM network pharmacies.

If your prescription is denied at the pharmacy, call your doctor. Your doctor needs to request a prior authorization from HPSM to get coverage for that drug by filling out the Pharmacy Prior Authorization Request Form and faxing it to 650-829-2045. Your physician’s approval is required.

Search for a pharmacy

The HPSM network has 234 pharmacies in San Mateo County and San Francisco.

  •  Search by pharmacy name, health plan, location or type of provider
  •  Click on a pharmacy name in the search results to see additional information
  •  Search results include links to interactive maps and directions
  •  Print or save the information for individual pharmacies
  •  Weekly updates ensure you get the most accurate results

Pharmacies outside your area

The HPSM pharmacy network includes chains that have pharmacies outside of the San Mateo County area, which you can use when traveling in the United States.

  • Costco: 1-800-607-6861
  • CVS: 1-800-746-7287
  • Target: 1-800-440-0680
  • Rite Aid: 1-800-748-3243
    TTY/TDD: 1-800-821-1833
  • Walgreens: 1-800-925-4733

Pharmacy for specialty medications

If you have been prescribed medicine for treatment of a chronic condition, a regular pharmacy may not be able to fill your prescription. Alphascript is HPSM's preferred pharmacy for specialty medications.

To find out if you need to use Alphascript:

Call Member Services, your doctor, or Alphascript. To avoid delays in filling your prescription, call Alphascript on the day that you receive your prescription (before you leave your doctor’s office or clinic, if possible).

Call Alphascript at 1-800-780-3584

Conditions that are treated with specialty medications:
  • Cancer
  • Hepatitis B
  • Hepatitis C
  • Cystic fibrosis
  • Rheumatoid arthritis
  • Multiple sclerosis
  • Crohn’s disease
  • Kidney disease
  • Organ transplant
  • Psoriatic arthritis
  • Ulcerative colitis
  • Plaque psoriasis
  • Bone marrow transplant

Many self-injectable drugs are specialty medications (insulin is not included).