ROCHELLE ZAK (M.D.) – Sleep Medicine (Psychiatry & Neurology) Physician, NPI 1285606863
Sleep Medicine (Psychiatry & Neurology) Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
312 SLEEP MEDICINE in CA
Provider Addresses for ROCHELLE ZAK (M.D.)
2330 POST ST.
420
SAN FRANCISCO, CA 94115
Phone: (415) 885-7886
Fax: (415) 885-3650
Type: Mailing
May Center for Mount Sinai Doctors, 5, East 98th Street, East Harlem, Manhattan Community Board 11, Manhattan, New York County, New York, 10029, United States
NEW YORK, NY 10029
Phone: (212) 241-5656
Fax: (212) 241-8866
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
No Open Payments data available for this provider.
This can happen when there are no reportable CMS Open Payments records.
Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2010-11-09
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.
Enrollment records
1
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20101109000250 | I | Sleep Medicine | CA | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| 99215 | Established patient office or other outpatient visit, 40-54 minutes | 140 | 86 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 78 | 64 | $0 |
| G2212 | Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or | 47 | 26 | $0 |
| 99204 | New patient office or other outpatient visit, 45-59 minutes | 47 | 47 | $0 |
| 99205 | New patient office or other outpatient visit, 60-74 minutes | 43 | 43 | $0 |
Insurance plans in this area (ZIP 94115)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| NEUROLOGY | NY | 95811 | Sleep monitoring of patient (6 years or older) in sleep lab with continued pressured respiratory assistance by mask or breathing tube | 13 | 13 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| Hospitalist, Internal Medicine | CA | |
| Internal Medicine, Interventional Cardiology | MD | |
| Hospitalist, Internal Medicine | CA | |
| Internal Medicine | PA | |
| Hematology/Oncology, Internal Medicine | CA | |
| Internal Medicine, Cardiovascular Disease (Cardiology) | MA | |
| Hospitalist, Internal Medicine | IL | |
| Internal Medicine | CA | |
| Hospitalist, Internal Medicine, Hospice/Palliative Care | CA | |
| Internal Medicine, Interventional Cardiology, Cardiovascular Disease (Cardiology) | IL |
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