Doctor profile · Federal record
Dr. John Loh
Internal Medicine Physician (CMS: Internal Medicine) · Baltimore, MD
- NPI 1306852827
- Accepts Medicare
- 42 yrs in practice
- Male
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
1124 Mace Ave
Baltimore, MD 212213315
(410) 391-6996
fax (410) 687-6877
Credentials & registration
- NPI registered
- August 2006 — 20 yrs on file
- Profile last updated
- July 8, 2007
- Year of graduation
- 1984 — 42 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- Maryland #H0035593
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1306852827. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
2,131
Distinct HCPCS
10
Medicare allowed
$197,265
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 940 | 326 | $97 | |
G0439 |
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 215 | 215 | $134 | |
G0008 |
Administration of influenza virus vaccine | 136 | 135 | $29 | |
85610 |
Blood test, clotting time | 91 | 12 | $4 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 85 | 61 | $75 | |
0241U |
Respiratory infectious agent detection by rna for severe acute respiratory syndrome coronavirus 2 (covid 19), influenza a, influenza b, and respiratory syncytial virus, upper respiratory specimen, each reported as detected or not detected | 83 | 66 | $140 | |
99211 |
Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional | 75 | 21 | $57 | |
90688 |
Influenza vaccine, quadrivalent, 0.5 ml dosage | 71 | 70 | $20 | |
99349 |
Residence visit for established patient with moderate level of medical decision making, per day, if using time, at least 40 minutes | 66 | 17 | $133 | |
90662 |
Influenza vaccine split virus, preservative free | 64 | 64 | $72 |
In context: peer comparison
Among 363 peers in this city , average services per provider: 105. This provider delivers 20× the peer median.Open Payments
Industry payments received
All-time total
$1,725
Transactions
85
Manufacturers
15
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| PFIZER INC. | 12 | $229.25 | |
| ABBVIE INC. | 20 | $212.14 | |
| Amgen Inc. | 11 | $191.76 | |
| Abbott Laboratories | 8 | $173.92 | |
| Astellas Pharma US Inc | 4 | $141.45 | |
| Phathom Pharmaceuticals, Inc. | 2 | $101.02 | |
| Novartis Pharmaceuticals Corporation | 4 | $80.75 | |
| Lilly USA, LLC | 4 | $77.67 | |
| Neurocrine Biosciences, Inc. | 3 | $74.57 | |
| Novo Nordisk Inc | 4 | $69.66 | |
| ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.) | 3 | $66.02 | |
| Salix Pharmaceuticals, a division of Bausch Health US, LLC | 3 | $65.17 | |
| AstraZeneca Pharmaceuticals LP | 3 | $56.64 | |
| E.R. Squibb & Sons, L.L.C. | 3 | $52.92 | |
| Takeda Pharmaceuticals U.S.A., Inc. | 1 | $26.45 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
2,516
Patients
816
Total drug cost
$38,090
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 357 | 113 | $6,029 |
| Amlodipine Besylate | Generic | 228 | 78 | $2,653 |
| Levothyroxine Sodium | Generic | 224 | 64 | $4,255 |
| Losartan Potassium | Generic | 215 | 68 | $3,377 |
| Pantoprazole Sodium | Generic | 187 | 50 | $3,403 |
| Lisinopril | Generic | 182 | 62 | $2,011 |
| Metformin Hcl | Generic | 160 | 51 | $2,043 |
| Metoprolol Tartrate | Generic | 146 | 45 | $1,567 |
| Metoprolol Succinate | Generic | 133 | 36 | $3,621 |
| Simvastatin | Generic | 119 | 36 | $1,119 |
Frequently asked questions
What is Dr. John Loh's medical specialty?
Dr. John Loh practices Internal Medicine Physician in Baltimore, MD.
Where does Dr. John Loh practice?
Dr. John Loh practices at 1124 Mace Ave, Baltimore, MD 212213315. Office phone: 4103916996.
What is Dr. John Loh's NPI?
Dr. John Loh's National Provider Identifier (NPI) is 1306852827, issued by NPPES.
Does Dr. John Loh accept Medicare assignment?
Yes. Dr. John Loh accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. John Loh commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (HCPCS G0439); Administration of influenza virus vaccine (HCPCS G0008). Source: CMS Medicare Physician & Other Practitioners file.