DR. MARK DAVID GARFIELD (MD) – Sleep Medicine (Internal Medicine) Physician, NPI 1669555355
Sleep Medicine (Internal Medicine) Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
313 SLEEP MEDICINE in CA
Provider Addresses for DR. MARK DAVID GARFIELD (MD)
30, Garden Court, Monterey, Monterey County, California, 93940, United States
MONTEREY, CA 939405302
Phone: (831) 646-8570
Fax: (831) 646-5435
Type: Mailing
100 WILSON RD STE 100
MONTEREY, CA 939407885
Phone: (831) 242-8301
Type: Mailing
2 UPPER RAGSDALE DR BLDG A
MONTEREY, CA 939405736
Phone: (831) 333-3040
Type: Location
Kaweah Delta Medical Center, 400, West Mineral King Avenue, Visalia, Tulare County, California, 93291, United States
VISALIA, CA 932916263
Phone: (559) 624-2358
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 108 Open Payments records for all available years, with a total value of $2,504.
Total Amount is formed as General ($2,504) + Research ($0) + Ownership ($0) = $2,504.
Last reported payment date: 2024-10-08 • Largest payer in this snapshot: GlaxoSmithKline, LLC. ($518).
Total Amount
$2,504
General + Research + Ownership
Payments
108
Total payment records
General Amount
$2,504
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-10-08
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| GlaxoSmithKline, LLC. | $518 |
| Grifols USA, LLC | $368 |
| AstraZeneca Pharmaceuticals LP | $296 |
| Boehringer Ingelheim Pharmaceuticals, Inc. | $183 |
| Mylan Specialty L.P. | $160 |
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: 2016-06-09
PECOS data refreshed: 2026-06-15
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 |
|---|---|---|---|---|
| I20160609000727 | 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 |
|---|---|---|---|---|
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 398 | 203 | $0 |
| 94010 | Test to measure expiratory airflow and volume | 374 | 186 | $0 |
| 99215 | Established patient office or other outpatient visit, 40-54 minutes | 72 | 50 | $0 |
| 99205 | New patient office or other outpatient visit, 60-74 minutes | 22 | 22 | $0 |
| 94618 | Test for exercise-induced lung stress | 13 | 13 | $0 |
Insurance plans in this area (ZIP 93940)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| PULMONARY DISEASE | CA | 94060 | Measurement and graphic recording of the amount and speed of breathed air, before and following medication administration | 21 | 20 |
| PULMONARY DISEASE | CA | 94727 | Determination of lung volumes using gas dilution or washout | 21 | 20 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| Physician Assistant | CA | |
| O B S T E T R I C S/ G Y N E C O L O G Y | NY | |
| Physician Assistant | CA | |
| Physician Assistant | CA | |
| Neurology, Diagnostic Radiology | CA | |
| N E U R O L O G Y | CA | |
| E N D O C R I N O L O G Y | CA | |
| - | AR | |
| Nurse Practitioner | CA | |
| Family Practice | CA |
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