Alkaline phosphatase test cost in Washington, DC
In Washington-Arlington-Alexandria, DC-VA-MD-WV, 18 hospitals list a cash price for alkaline phosphatase (ALP) blood test: from $4.00 to $603.16, with a median of $64.50. The lowest listed price is at Jefferson Medical Center — $60.50 less than the median here. Across District of Columbia, the median is $63.70 at 5 hospitals.
Cash prices at 18 facilities across 14 cities for code 84075, as an outpatient — the setting a self-pay patient normally buys. Collected Sep 29, 2026; the hospital files themselves were last updated between Apr 1, 2026 and Sep 1, 2026.
Where each hospital's price falls
Each dot is one hospital's cash price on a scale from the lowest to the highest in Washington-Arlington-Alexandria, DC-VA-MD-WV.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| Jefferson Medical Center lowest Ranson, WV · (304) 728-1600 ASSAY ALKALINE PHOSPHATASE | $4.00 | $8.00 | — | 50% | — source file |
| Sentara Northern Virginia Medical Center Woodbridge, VA · (703) 523-1000 Chgl Alkaline Phosphatase | $5.00 | $10.00 | — | 50% | Apr 1, 2026 source file |
| MedStar Montgomery Medical Center Olney, MD · (301) 774-8882 ALKALINE PHSPHT BONE | $5.29 | $5.40 | $5.29–$5.40 | 2% | Apr 1, 2026 source file |
| MedStar Montgomery Medical Center Olney, MD · (301) 774-8882 PHOSPHATASE, ALKALINE | $5.29 | $5.40 | $5.29–$5.40 | 2% | Apr 1, 2026 source file |
| MedStar Southern Hospital Center Clinton, MD · (301) 868-8000 PHOSPHATASE, ALKALINE | $5.75 | $5.87 | $5.75–$5.87 | 2% | Apr 1, 2026 source file |
| MedStar Southern Hospital Center Clinton, MD · (301) 868-8000 ALKALINE PHSPHT,BONE | $5.75 | $5.87 | $5.75–$5.87 | 2% | Apr 1, 2026 source file |
| Children's National Rehabilitation and Specialized Care Washington, DC ALKALINE PHOSPHATASE ALK | $15.00 | $30.00 | $4.59–$270.00 | 50% | — source file |
| Sentara Northern Virginia Medical Center Woodbridge, VA · (703) 523-1000 Chgl (Qu) Alkaline Phosphatase, Bone Specific, S/O | $19.00 | $38.00 | — | 50% | Apr 1, 2026 source file |
| National Rehabilitation Hospital Washington, DC PHOSPHATASE ALKALINE | $36.06 | $55.47 | $5.08–$47.15 | 35% | Apr 1, 2026 source file |
| National Rehabilitation Hospital Washington, DC ALKALINE PHSPHT BONE8 | $36.06 | $55.47 | $5.08–$47.15 | 35% | Apr 1, 2026 source file |
| Fauquier Health Warrenton, VA · (540) 316-5000 Phosphatase, alkaline | $61.20 | $153.00 | $6.51 | 60% | — source file |
| MedStar Washington Hospital Center Washington, DC · (202) 877-7000 ALKALINE PHSPHT BONE 8 | $63.70 | $98.00 | $5.18–$83.30 | 35% | Apr 1, 2026 source file |
| MedStar Washington Hospital Center Washington, DC · (202) 877-7000 PHOSPHATASE ALKALINE | $63.70 | $98.00 | $5.18–$83.30 | 35% | Apr 1, 2026 source file |
| MedStar Washington Hospital Center Washington, DC · (202) 877-7000 PHOSPHATASE ALKALINE | $63.70 | $98.00 | $5.18–$83.30 | 35% | Apr 1, 2026 source file |
| Inova Fairfax Hospital Falls Church, VA · (703) 698-1110 HC PHOSPHATASE ALKALINE | $64.50 | $129.00 | $5.18–$100.62 | 50% | — source file |
| Inova Mount Vernon Hospital Alexandria, VA · (703) 664-7105 HC PHOSPHATASE ALKALINE | $64.50 | $129.00 | $5.18–$100.62 | 50% | — source file |
| Inova Loudoun Hospital Leesburg, VA · (703) 858-6600 HC PHOSPHATASE ALKALINE | $64.50 | $129.00 | $5.18–$100.62 | 50% | — source file |
| Inova Fair Oaks Hospital Fairfax, VA · (703) 391-4170 HC PHOSPHATASE ALKALINE | $64.50 | $129.00 | $5.18–$100.62 | 50% | — source file |
| Inova Alexandria Hospital Alexandria, VA · (703) 504-3167 HC PHOSPHATASE ALKALINE | $64.50 | $129.00 | $5.18–$100.62 | 50% | — source file |
| Children's National Hospital Washington, DC · (202) 476-5000 Alkaline Phosphatase | $64.50 | $129.00 | $5.18–$233.38 | 50% | — source file |
| Children's National Hospital Washington, DC · (202) 476-5000 (BILL COMPONENT 40262) ALK PHOS | $66.50 | $133.00 | $5.18–$233.38 | 50% | — source file |
| MedStar Georgetown Hospital Northwest Washington, DC · (202) 784-3000 ALKALINE PHSPHT BONE 8 | $97.04 | $149.29 | $5.18–$134.36 | 35% | Apr 1, 2026 source file |
| MedStar Georgetown Hospital Northwest Washington, DC · (202) 784-3000 PHOSPHATASE ALKALINE | $97.04 | $149.29 | $5.18–$134.36 | 35% | Apr 1, 2026 source file |
| Children's National Hospital Washington, DC · (202) 476-5000 Alk Phosphatase,Bone Specific | $108.50 | $217.00 | $5.18–$233.38 | 50% | — source file |
| Spotsylvania Regional Medical Center Fredericksburg, VA · (540) 498-4000 Phosphatase, alkaline; | $488.16 | $488.16 | $5.39 | — | Sep 1, 2026 source file |
| Spotsylvania Regional Medical Center Fredericksburg, VA · (540) 498-4000 ALK PHOS (ALP) | $488.16 | $488.16 | $92.75–$439.34 | — | Sep 1, 2026 source file |
| Stonesprings Hospital Center Dulles, VA · (571) 349-4000 Phosphatase, alkaline; | $603.09 | $603.09 | $5.18–$27.51 | — | Sep 1, 2026 source file |
| Stonesprings Hospital Center Dulles, VA · (571) 349-4000 ALK PHOS (ALP) | $603.09 | $603.09 | $428.19 | — | Sep 1, 2026 source file |
| Reston Hospital Center Vienna, VA · (703) 689-9000 ALK PHOS (ALP) | $603.16 | $603.16 | $428.24 | — | Sep 1, 2026 source file |
| Reston Hospital Center Vienna, VA · (703) 689-9000 Phosphatase, alkaline; | $603.16 | $603.16 | $5.18–$29.35 | — | Sep 1, 2026 source file |
Outpatient: lowest $4.00, median $64.50, highest $603.16 — a 150.8× difference within the same market.
As an inpatient, the same code is billed by 12 facilities here, median $64.50. Inpatient and outpatient prices are not comparable and are kept on separate pages: the inpatient charge covers admission, not the same purchase.
Cash or insurance?
At 12 of 16 hospitals that publish insurer rates for this code here, the cash price is below the highest rate a health plan has negotiated, and at none is it below every plan's rate. If you have insurance but have not met your deductible, you usually pay your plan's negotiated rate, which falls somewhere in the "Insurers pay" column. Paying cash can cost less, but a cash payment usually does not count toward your deductible. Ask the hospital for both numbers before you book.
What it is
An alkaline phosphatase test measures an enzyme from the liver, bile ducts and bones. High levels suggest a blocked bile duct, liver disease or bone disease.
What the price covers
The price usually covers running the test. The blood draw (36415) is often billed as a separate line.
2 rows held back from this comparison
They are priced below $1 or below a tenth of the national median for code 84075 ($36.06). Such a line is almost always a physician's fee billed separately, an assistant's share or a placeholder — a real charge, but not the price of the procedure itself.
| Sentara Northern Virginia Medical Center Woodbridge, VAChgl (Qu) Porphobilinogen, 24 Hr Ur, S/O | $0.50 | file |
| Sentara Northern Virginia Medical Center Woodbridge, VAChgl (Qu) Alkaline Phosphatase Isoenzymes, S/O | $2.50 | file |