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STEPHEN T. PENEPACKER MD
NPI 1336165125
Psychiatry & Neurology - Psychiatry in San Luis Obispo, CA

Active since July 14, 2006PECOS EnrolledAccepts Medicare Assignment
2178 JOHNSON AVE, SAN LUIS OBISPO, CA 93401(805) 781-4700(805) 781-1232 Get Directions Write a Review

NPPES record last updated: December 9, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Dec 9, 2025, Jul 11, 2025 (2 updates tracked since 2025).

About Stephen T. Penepacker Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

STEPHEN T. PENEPACKER MD (NPI 1336165125) is an individual psychiatry provider in San Luis Obispo, California, licensed in California (C180768) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS, maintains a secondary practice location in Arroyo Grande, and is a graduate of University Of Illinois College Of Med (chi/peor/rock/chm-urb) (1999).

NPPES Registry Identity

NPI1336165125
Entity TypeIndividualMale
Primary Taxonomy2084P0800X
Provider Legal NameSTEPHEN T. PENEPACKERCredential: MD
Location Address2178 JOHNSON AVESan Luis Obispo, CA 93401-4535
Mailing Address2178 Johnson AveSan Luis Obispo, CA 93401-4535 · (805) 781-4700 · Fax (805) 781-1232
Phone(805) 781-4700
Fax(805) 781-1232
Sole ProprietorNo
Medical School CMSUniversity Of Illinois College Of Med (chi/peor/rock/chm-urb)Graduated 1999
Enumeration DateJuly 14, 2006
Last NPPES UpdateDecember 9, 20252 updates tracked since enumeration
NPPES CertifiedDecember 9, 2025
✔ NPI 1336165125 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · PsychiatryAllopathic & Osteopathic Physicians
Taxonomy Code2084P0800X
License✔ Licensed in CA · C180768
Definition
A Psychiatrist specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.
2178 JOHNSON AVE, San Luis Obispo, CA 93401
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Secondary Practice Location 1

Location 11350 E Grand AveArroyo Grande, CA 93420-2422 · Phone (805) 474-2154 · Fax (805) 474-2160

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Stephen T. Penepacker Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID5698719821
PECOS Enrollment IDI20240117000852
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 5

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
168 services87 patients
Telephone medical discussion with physician, 21-30 minutes 99443
This service involves a 21-30 minute phone conversation with a physician. It's a chance for you to discuss your health concerns, symptoms or treatment plans. It's similar to an in-person consultation, but conducted over the phone for your convenience and safety.
118 services68 patients
Telephone medical discussion with physician, 11-20 minutes 99442
This is a service where you have a phone conversation with your doctor for 11-20 minutes. It's used for discussing health concerns, reviewing test results, or managing ongoing conditions. It's a convenient way to receive medical advice without an in-person visit.
68 services50 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
66 services49 patients
Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212
This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.
46 services29 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 93401 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$178.89 typical visit price
range $59.84 – $178.89
Typical copayment $44.72 (range $14.96 – $44.72)
Most-billed visit code 99205
Established Patient
$74.24 typical visit price
range $19.70 – $146.55
Typical copayment $18.56 (range $4.92 – $36.63)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

Reported Quality Measures

Adult Major Depressive Disorder (MDD): Suicide Risk Assessment
Percentage of patients aged 18 years and older with a diagnosis of major depressive disorder (MDD) with a suicide risk assessment completed during the visit in which a new diagnosis or recurrent episode was identified
95%94 patients4/55-star benchmark: 99%
Anti-Depressant Medication Management
Percentage of patients 18 years of age and older who were treated with antidepressant medication, had a diagnosis of major depression, and who remained on an antidepressant medication treatment.
17%54 patients
Depression Utilization of the PHQ-9 Tool
The percentage of patients age 18 and older with the diagnosis of major depression or dysthymia who have a completed PHQ-9 during each applicable 4 month period in which there was a qualifying visit
Patients 4MonthsOfEnd: 13% · 189 patients
Patients 4MonthsOfStart: 15% · 215 patients
11%205 patients
Preventive Care and Screening: Body Mass Index (BMI) Screening and Follow-Up Plan
Percentage of patients aged 18 years and older with a BMI documented during the current encounter or during the previous twelve months AND with a BMI outside of normal parameters, a follow-up plan is documented during the encounter or during the previous…
52%719 patients3/55-star benchmark: 97%
Preventive Care and Screening: Tobacco Use: Screening and Cessation Intervention
Percentage of patients aged 18 years and older who were screened for tobacco use one or more times within 24 months AND who received tobacco cessation intervention if identified as a tobacco user
Patients screenedForUse: 15% · 637 patients
Patients tobacco: 8% · 633 patients
8%49 patients1/55-star benchmark: 98%
Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

CALLIE ROSE BOLLER
Marriage & Family Therapist
2178 JOHNSON AVE
SAN LUIS OBISPO, CA 93401
San Luis Obispo County (805) 781-4700
CAMDEN SCHLEISNER
Psychiatric Hospital
2178 JOHNSON AVE
SAN LUIS OBISPO, CA 93401
San Luis Obispo County (805) 781-4711
SUSIE JULIANA BAUTISTA
Marriage & Family Therapist
2178 JOHNSON AVE
SAN LUIS OBISPO, CA 93401
San Luis Obispo County (805) 781-4960
THOMAS BURDICK
Counselor (Mental Health)
2178 JOHNSON AVE
SAN LUIS OBISBO, CA 93401
San Luis Obispo County (805) 781-4711
KIMBERLY SEAMAN
Counselor (Mental Health)
2178 JOHNSON AVE
SAN LUIS OBISPO, CA 93401
San Luis Obispo County (805) 781-4700
JENNIFER N KUIKEN LPT
Licensed Psychiatric Technician
2178 JOHNSON AVE
SAN LUIS OBISPO, CA 93401
San Luis Obispo County (805) 781-4712
RONALD ANTHONY VERDUSCO
Nurse's Aide
2178 JOHNSON AVE
SAN LUIS OBISPO, CA 93401
San Luis Obispo County (805) 781-4711
RANDY LEE SCHEIDERER PSYCHIATRIC TECH
Licensed Psychiatric Technician
2178 JOHNSON AVE
SAN LUIS OBISPO, CA 93401
San Luis Obispo County (805) 781-4723

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Stephen Penepacker's NPI number?

The NPI number for Stephen Penepacker is 1336165125. It was assigned to this individual provider in the NPPES registry on July 14, 2006.

Where is Stephen Penepacker located?

Stephen Penepacker practices at 2178 Johnson Ave, San Luis Obispo, CA 93401. The listed phone number is (805) 781-4700.

What is Stephen Penepacker's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.

Is Stephen Penepacker enrolled in Medicare?

Yes. Stephen Penepacker is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

When was this NPI record last updated?

The NPPES record for Stephen Penepacker was last updated on December 9, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.