SINGH AHN BOUN (MD) – Family Medicine Physician, NPI 1801855028
Family Medicine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
13,194 FAMILY PRACTICE in CA
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Provider Addresses for SINGH AHN BOUN (MD)
Newby Avenue, San Gabriel, Los Angeles County, California, 91776, United States
SAN GABRIEL, CA 917763413
Phone: (626) 374-7029
Type: Mailing
210, Garfield Avenue, Monterey Park, Los Angeles County, California, 91754, United States
SUITE 201
MONTEREY PARK, CA 917541746
Phone: (626) 280-5000
Fax: (626) 280-5100
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 506 Open Payments records for all available years, with a total value of $13,068.
Total Amount is formed as General ($13,068) + Research ($0) + Ownership ($0) = $13,068.
Last reported payment date: 2024-12-23 • Largest payer in this snapshot: AstraZeneca Pharmaceuticals LP ($2,661).
Total Amount
$13,068
General + Research + Ownership
Payments
506
Total payment records
General Amount
$13,068
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-23
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| AstraZeneca Pharmaceuticals LP | $2,661 |
| GlaxoSmithKline, LLC. | $942 |
| Horizon Therapeutics plc | $560 |
| Amgen Inc. | $498 |
| PFIZER INC. | $464 |
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: 2004-02-24
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 |
|---|---|---|---|---|
| I20040224000840 | I | Family Practice | 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 |
|---|---|---|---|---|
| 99490 | Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month | 6,155 | 575 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 1,409 | 474 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 1,290 | 352 | $0 |
| 99457 | Management using the results of remote vital sign monitoring per calendar month, first 20 minutes | 915 | 172 | $0 |
| 99454 | Remote monitoring of physiologic parameters, initial supply of devices with daily recordings or programmed alerts transmission, each 30 days | 447 | 100 | $0 |
Insurance plans in this area (ZIP 91776)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| FAMILY MEDICINE | CA | 90670 | Pneumococcal vaccine for injection into muscle | 27 | 27 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| Family Practice | CA |
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